7/28/73
LCC This is Skylab launch control. T minus
i hour 7 minutes and counting toward lift off in the second
manned mission in Skylab. At this time checks are underway on
the adar beacon aboard t e space vehi l . T re are two
of these beacons actually located in the instrument unit of
the Saturn IB. They're used in conjunction with ground
radars to track the velocity positio n and the acceleration
of t
U
p at the
320 foot level at the pad launch complex 39, the close out
cr
e
s
down some connector panels which connect the white room to
the space craft and sealing off the boost protective cover
hatch, which has now been pulled closed. We're continuing to
aim for a lift off time of 7:10:50, that is i0 minutes
50 seconds after 7:00 a.m. eastern daylight time this
morning. Now T minus i hour 6 minutes and counting, this
is Kennedy Launch Control.
7/28/73
56 minutes 58 scC
o
mpleted
was a very critical power transfer test. During this est
the power is transferred f om the ground source, which has
been being used up to this point to conserve on the flight
all systems are operating during and after that transfer.
Transfer was made, the various elements of the launch team
reported in that systems continued operating c
o
switch back then to the ground source and we'l stay
o
countdown at which time we'll switch finally to the flight
batteries and stay on the flight batteries from that point on.
Com ng up in the countdown are checks of the digital rain
safety receivers aboard the space vehicle. These receivers
are part of what's called the secure arrange safety systems
aboard the Skylab. A range safety officer could send a destruct
signal to the rockets if it became erratic or straight off
course. He would do this by initiating the emergency cut off,
and if necessary, the propellant dispersion command. The
syst ms are located o each stage of the Saturn IB. The
two receivers in each stage and they receive the signal from
the range safety officer, and then send them through the
proper channels to perform the propellant dispersion. These
actions of course will be taken only if the vehicle were so
erratic that it endangered land areas, an also only after
the crew has been advised and has used one f the escape
options that is open to them. Countdown proceeding sm oothly
now in the final hour. T minus 55 minutes 23 seconds and
counting, this is Kenned Launch Contr
o
l.
7/28/73
LCC This is Skylab Launch Control, T-minus 45
minutes and counting. Chief Staff Supervisor, Bill Schlck
advises that the swing arm, swing arm number 9, with the
environmental chamber will be coming back, it's coming back
now to the 2 degree or park position. Schick advises also
this and other aspects of the count continue to go well.
All on time or actually running somewhat ahead of schedule.
The environmental chamber at the end of wing arm 9_ will
i remain at the park position here. T is is about i0 to 12
feet from the spacecraft. It could be quickly moved back
to the spacecraft in an emergency. Swing arm number 9 is
somewhat of a misnomer, the facilities here at complex 39
were designed for the larger Saturn V vehicle_ 365-foot
tall. Specially designed 127-foot pedestal adapts the
smaller Saturn IB so that it does use the same upper swing
arm. Actually this is the fifth of the five swing arms used
for the Saturn IB, but it does continue to carry that
swing arm 9 designator, which it gained back in the Saturn V
program. Once the swingarm is moved back, launch escape
system is armed. That's the small rocket tower that can
be seen perched on top of the command module. That system
could he used by the astronauts in an emergency to pull the
command module free of the space vehicle. It would lift
it u
o
ugh so that the parachutes
could deploy and it could come down for a normal landing.
That launch escape system, interestingly enough, develops
a 147,000 p
developed by the Mercury Redstone rocket, which launched
our first two astronauts into suborbital space. However
that's a rather short duration burn of 3.2 minutes for the
launch escape system. The escape system itself is 33 feet
long, weighs about 8,000 pounds. Now, T minus 42 minutes
57 seconds and counting. This is Kennedy Launch Control.
END OF TAPE
7/28/73
34 minutes 59 seconds and counting. The closeout crew, which
left the pad
c
as announced
that the KSC area is now cleared for launch. Range safety
command re
continuing. Liquid oxygen and liquid hydrogen, the cryogenic
fuels for the Saturn IB, were loaded earlier this morning.
Actually completed loading at about the T minus 4 hour mark
in th countdown. These are continuing to be replenishe d
down through the countdown until we get into the terminal
sequencer; the replenishing is then stopped. It is ecess ary
to re lenish these because there is some boll off that takes
place.
T
c
LCC This is Skylab Launch Control, we ar
T minus 23 minutes 48 seconds and counting toward the lift off
of the second manned mission in the Skylab program. Count
c
o
n
c
h
C
omple
x
3
9.
Preflight
c
omm
a
nd
c
he
c
h
a
s
function
s
c
ien
c
o
c
l
c
fuels
a
re
o
module reaction control systemp these fuels are monomethyl
hydrazine and nitrogen tetrocide. The system has been
pr
es
s
u
se
d
for
m
inor
c
ourse
c
rb
A
c
c
a
C
ente
r
, it's
co
min
g
u
to blow off and at llft-off time, approximately 22 mi
n
utes
c
farenheit, a
u
possibi
l
l
es
v
isibi
l
nu
7/28/73
MCC This is Skylab Launch Control. T minus
15 minutes and we're in a planned brief hold at this time.
This is actually a clock adjustment hold. It's to insured
that we are lifting off at the proper time to get us in the
best trajectory toward the orbiting laboratory. We'll resume
our countdown at 6:55:50 seconds. That's 6:55 am and 50
seconds. Chief Test Supervisor Bill Schick Just reported to us
before going into the hold that all systems are in good hapem the
countdown has been running very smoothly. As we llft off at
7:50 this morning the orbiting Skylab will be some 300 nautical
miles South of Newfoundland. Predicted lift-off time 7:10:50
at th s time. The orbiting lab of course was launched back on
May 14. Flight controllers out at Houston report that all
systems aboard there are in good shap and ready for the
second crew to move in and set up housekeeping. That crew
aboard the comm
morning eager to get
?
ing room
he has the abort advisory responsibility up to the point when
the space vehicle clears the tower. He'll make some communi-
cation checks with the astronauts on the special astro launch
circuit. This is a circuit on which the spacecraft test
conductor, the astronaut communicator ob Crippen here in the
firing room and Donnelly use with the astronauts during the final
4 minutes of launch. This is e sentially to isolate them from
any other discussions which might be going on in the operational
inter
c
om
s
y
s
ic
h link together
the various members of the launch team. Also as the count resumes
s
p
a
ce
cr
i
ntern
al
s
point it has been powered by the fuel cells aboard the space-
craft but also it has had a ground source fed to it as a backup.
We' re about to resume the count.
MARK. T minus 15 min tes and counting now. Pr parations under
way at this time now to chill the systems in the second stage which
will be receiving the very cold liquid hydrogen after first
stage burnout and as the second stage ignites. T minus 14 minutes
4
8 minutes 59 seconds and counting. Bean,r Garriott and Lousma
are now flnishin 8 up their checks inside the spacecraft.
Final launch vehicle checks also being made now before goin E
on the automatic sequencer. There is not an ignition switch
or button for the Saturn launches either the Saturn 5 or the
Sa
t
Ther
e
a
re
s
o
m
e
91
c
a
m
eras
o
u
t
a
o
v
e
r
t
h
e
action at ignition detailing the sequence of even s for engineers
to study after the launch. A number of $isitors here at
Kennedy Space Center have Jammed the entire pace center.
35000 guests have taken all available space on the space
center and this does not include thousands of people who are
linln E the highways nearby. T minus 8 minutes 8 seconds and
counting. This is Kennedy Launch Control.
END OF TAPE
7
1
28
1
73
the
6
minu
te
ma
r
onds and counting. At this time various elements of the
Skylab team reporting in to the test supervisor with their
go or no go status. This team includes the mission controllers
in Houston. The Program Director who is watching from
here at Kennedy Space Center for this launch. The Air Force
Eastern test range who will perform tracking during the powered
phase of the flight, and of course the launch team here in
t
o
us
to
n
flight Just reported in that they are go for the start of
t
h
e
a
utomat
P
r
og
r
am
Dire
cto
r
W
illia
m
S
c
hn
ei
der
also reports we're go for launch. Swing arm number 9, that's
t
spacecraft, will be swinging back to the full retract position
Just a few moments from now. Up to this point it's been in
a p rk position for about the last 40 minutes in a stand by
pa k p s ti n ab u i0 15 fe t fr m he spacecraf . T m nus
5 minutes. And swing arm number 9 coming back now. It will swing
back 180 degrees, and a fully park position beside the launch
tower and it will remain there now through launch. Safety and
test support ow reporting to the test supervisor Chuck Henschel
t
ha
t
launch. Launch Operations Manager, Paul Donnelly has given his go
and Walter Kapryan, Director of Launch Operations gives us a go
for launch. T minus 4 minutes 32 seconds and counting, this
is Kennedy Launch Control.
7/28/73
3 ye
Test Supervisor that the launch vehicle is cleared for launch.
Essentially what he is saying is the launch vehicle is ready
to go on the automatic sequencer. The automatic sequencer
comes into play at T m nus 3 minutes 7 seconds in the count-
down. Launch sequence has started now we passed the three
mi
nutes
7
s
e
c
o
nds
m
the
vents will be closed and the fuel tanks will be pressurized.
This replenish has been necessary ince these are cryogenic
or extremely cold fuels which do boil off. They were fueled.
Fueling was completely about 5 hours before launch and it's
necessary to continu to replenish them on down through the
final portion of the countdown. Various elements of the
launch team now reporting in. All coming in on a go condition.
T minus 2 minutes 20 seconds and continuing to count. Here
in the firing room we are hav ng what's called operational
silence. Th
e me
go
. Th
e
r
e
will be no further reporting in now except when they see a
problem. If they saw a problem they could report in. Could
request an override to this automatic sequencer and stop
the count. Bob Crippen the A tronaut Communicator here in the
firing room is reporting the countdown clock times to the
crew. Chuck Henschel the test supervisor re orting - -
END OF TAPE
o
Laun
c
minus 1 min
u
s of the various
systems and also shows the action being taken by the autom
a
tic
sequencer. The instrument unit read light now is on. The
emergen
c
c
u
rse came on at the T minus 3 minute 7 se
co
nd
u
p now on our status board. SIVB LOX tank now pressurized.
SIB fuel tank pressurized as we approach the I minute mark
in the
ntdown. MARK. T minus 1 minute, T minus 1 min
ut
e
and
c
u
c
a
guidan
c
e
a
by the
c
looki
n
i
autom
a
t
ic
ma
n
e
proper
c
o
u
rse.
Alt t de 0.7 of a mile. Velo ity 1432 feet per se ond.
36 seconds.
e
o
w.
CC
7/28/73
PLT I get a great feeling of motion up here,
Di
c
feet wet.
CDR Understand.
5 miles down range. Velocity 3280 feet per second. Thrust
still looklng good. Trajectory looking good.
CDR EDB engine out and LV rates off.
CC Stand by for Mode 1 Charlie capability.
MARK. 1 Charlle.
CDR Underst and.
CDR Roger. GO here.
Velocity 5800 _eet per second. Standing by for staging.
CDR Inhoards. Outboards. Staging.
CC Roger. We're watching the thrust come up now.
Skylab, ouston. Thrust looks good on SIVB.
CDR Tha
miles. Veloclty 7695 feet per second. Down ange 60 miles
n
o
w.
CDR Guidance
you're GO in 3 minutes.
CDR It's nice and bright up here in the Sun.
CC Roger.
down range 90 miles, velocity 8889 feet per second. Thrust
s
t
in 4.
now 142 miles down range. Altitude 70 miles, velocity
9135 feet per second.
7/28/73
Four minutes 40 seconds down range now, 197 nautical miles
altitude 80 miles, velocity 10027 feet per second. Skylab
has achieved 34 percent of the velocity needed for orbit.
CC
The
r
283 nau
PAO Skylab has 47 percent of the veloclty needed
for orbit now. 12796 feet per second. Down range 354 nautical
miles. Altitude 91-1/2.
CC Roger. Omnl Charlle. Thank yo , sir.
P
LT
CC Skylab, Houston. We see 4 good gimbal
motors, good trims. You're go at 7 minutes, looking real good.
CDR Roger.
473 nautical miles, velocity 15380 feet per second, altitude
92 nautical miles. Seven minutes 40 seconds. Skylab now
ha
s
PAO Propellant utilization shift. The mixture
ratio for the propellant has changed now to provide a better
propellant feed at altltude. Eight minutes 16 seconds.
Skylab now 648 nautlcal miles down range. Altltude 89 nautlcal
miles. Veloclty 19172 feet per second. 75 percent of the
velocity needed for orbit now achieved.
CDR We're go at 9, Houston.
CC
Roger,
CD
PAO He advises the range safety officer that
Skylab is go at the gate. Passing that gate will permit Skylab
to fly over portions of the land masses of Europe and Asia.
CC CDR, Houston. We're predicting a guidance
 
7/28/73
CDR Roger, 9 plus 53.
CC Stand by for mode 3 Alfa capabillty.
MARK. Mode 3 Alfa.
CDR Roger, 3 Alfa.
mode 4.
CDR Ro
PAO Skylab could now get into orbit if it
had to abort, using the service propulsion system. At 9 min-
utes 50 seconds.
CC Sounds real great.
CC Roger.
1
22.
2
nau
ti
ca
m
i
l
es
b
CC
Skyl
a
CDR Okay, tell the guys at KSC thanks. It
was a nice, nice job.
CC Roger, AI.
ever to be launched is now in orbit, 13410 pounds.
CC Hold separation sequence. We're about 45 sec-
o
o
u
t
a
minute and a half, and I'll give you a call at ARIA.
CDR Okay.
7/28/73
module held a weight record before this, that weight was
13,383 pounds. We're standing b,y for communications through
a tracking aircraft.
d
o
y
o
going along all right.
CC Roger. I hear a little bit of static
on the llne but I heard fairly reasonably. We're standing by.
CDR Okay.
CC Roger.
SPEAKER Out stretchers are too long. As we move by
rapldly_ it looks almost llke we're above some strated layer at
5000
fe
e
t
ground elapsed time. Communication is very bad through the
aircraft. Skylab will be acquired by the Madrid tracking
station in about 3-1/2 minutes.
END OF TAPE
7/28/73
CC
R
og
er.
CD
R
second stage.
CC Skylab, Houston. We're about 45 seconds
from LOS ARIA. We'll drop out about 30 seconds and I'ii
call you at Madrid.
CC And Skylab, Houston, if you're still
there we'd like a GO from you so we could do our SIVB
maneuver.
g
CC Okay_ real fine.
three minutes.
CDR Okay, we got this baby ri ht in front
and it is beautiful. All four petals are open. We can see
the dome of the hydrogen tank and it looks real nice and clean
inside. It's floating along behind us.
C
CDR You bet. GO.
CDR It's sure pretty up here in the unlight
with the petals out. Looks like it's venting something also from
the back, although we can't see the engine.
SC There are a couple of wide angle plumes Between
ii o'clock and 2 o'clock, and another one between 5 and 8 o'clock
down there.
CC Roger and Skylab, Housto . I got two
or three things for you here at Madrid. One is we'd llke
to delete the waste w
a
r
timel
l
ne
a
t
i plus i0, that's Just a reminder. I've got a couple of
pads for you. The first one is a backup GDC align pad, page
i alfa.
it.
maneuver will start in about 20 seconds.
CDR Well, we see her maneuvering now, Dick,
looks like she's pitching up from where we see it.
CC Roger.
CC R
7128173
CDR Roger. Stars 33 and 37, 1610 0463 3461.
CC Roger. Turn to page 5-alfa. I ve got
a launch rend zvous realign pad, and while you're turn ng
there, we're
a
a
that pad on 5-alfa.
checklist, page 212.
CDR Four balls, 2552 3579.
CC Roger. Good read
PAO This is Skylab Control at groun elapsed
t
im
next tracking station to acquire Skylab will be the Texas
station in about an hour and seven minutes, however, we will
h ve an ARIA, an Apollo instrumented aircraft, on station
through which we will attempt to acquire the spacecraft in
approximately 30 minutes. We'll come back up at that time.
At a ground elapse time of 25 minutes, this is Skylab Control.
END OF TAPE
7/28/73
ground elapsed time. We're standing by for communications
through a tracking aircraft in about a minute. We now
have crew heart rates at llft-off. For the Commander, AI
Bean,
1
8
; and
for he Pilot Jack Lousma, 126. The last orbital figures
we had were 122.2 by 82.2 nautical miles. Those will have
changed Just sligh ly ue to the three foot per second
separation burn. We'll have to get more tracking on the
spacecraft before we can refine the orbital parameters
any urther. We'll stand by now for acquisition through
ARIA.
weak.
a
(garble) burn. Everything else is going corr ct. We did
the EMS Delta-V this pass. (Garble) and started at minus i00,
ended up at minus 99.6 one time and minus 9.7 the other time.
CC CDR, Houston. You'll have to say again
those two numbers. The first one you started at minus I00
and then ended up with what? Read me the second one.
CDR 99.6 and 99.7.
CC Roger. 99.6 and 99.7. Thank you very
much. And, CD , nyt me ur ng th s pa , if you get ny
inform
a
e
g
la
opy them.
I have a couple of notes here for you to let you know about.
Your CMC VECTOR during the boost, developed about a 30 foot per
second out of plane, and we intend on updating the CMC VECTOR at
Madrid. And also we - our initial look at the X and Y
PIPAs makes us think they probably will need a compensation
and we're going to take another look at them over the States.
Over.
PLT Understand. And, Dick, when we put the
radiators on the llne, we get a couple of intermittent glycol
full hold
er
cen
t
now.
We're going to put a little more in her when we get around
to it.
CC (Garble) Skylab, Houston. If you're calling
me, you're too far down in the noise. Unable to read you.
Over
give you a call in a few moments.
 
7
/28/
7
3
advised the weather conditions today for ARIA are pretty
poor, so I t we do have COMM trouble through ARIA, it's not
your onboard systems. And I'm standing by. We're AOS for
the next 4 minutes.
CC
Roger.
CC Ro
CDR Not bad for a(garble) this time. Okay the
NOUN 93's are plus all zips, plus 021, plus 113. I'ii say it
again, all zips, plus 021, and plus 113, Row do you hear?
CC We got them loud and clear, CDR. I copy
them and go ahead and tell me the torque time.
CDR 00:56:17.
CDR O
CC Roger.
CDR Okay, the time we're using is 7 01 38 00.
CC 7 01 38 00.
CDR Roger. That's the T-allEn time w e are
using.
CC Skylab, Houston. We're about 1 minute
from LOS. We're going to see you at Texas in 1 plus 02.
CDR Okay, we'll be there.
CC O
l
oo
ks
ll
ke
llg
h
t
en
l
n
CC Roger. And that AOS time I read to you
wrong. It's about 1 plus 32.
CDR I wondered.
END OF APE
7128173
PAO This iH Skylab Control at 1 i_our
elapsed time. The ARIA has loss of signal now. Texas will
acquire the spacecraft in about 32 minutes. We'll go now
to the Kennedy Space Center for the post launch news con-
ference with Launch Director Walter Kapryan.
END OF TAPE
ming up
now with an acquistion at the Texas tracking station and the
crew will soon be on its first ass over the United States.
Current orbital parame ers reported by the flight dynamics
officer, 127 by 84 nautical miles. This nu ber does reflect
the separation maneuver. 127 by 84 nautlcal miles. We'll
stand by for acquistion through T xas.
CC Skylab, Houston at Texas for 5 minutes.
CDR The second P52 stars 33 and 37 NOUN 9 5 all
zer
o
CD
R
CC Roger. Starting with Noun 95 002180500
plus 2138 plus 4 balls plus 4 balls. 179 074 002 1995 0010.
Weight: 31219. Trim: plus 137 plus 051. Go ahead.
CDR Okay 002180500 plus 2138 plus all zip
plus all zip. 17 074 002 1995 0010. 31219 plus 137 plus 051.
CC Roger CDR and on the burn attitude
check right below that itts star 25 shaft 2503 trunnion 376.
Go ahead.
CDR R
CC Roger. And got a couple of notes. This
MC i burn will be the deal bank burn of the day and you'll
be happy to know that no plane change is required.
CDR Thatrs great. And when we went through
our P31 we got a Noun 81 of 222.7.
CC Roger, Alan.
Jus
iti
on
pad for you right now but as soon as the guidance officer gets
o
ne
gi
nn
ed
u
p
w
e
I'll go on and do P20.
CC Roge , we are happy with the P52 and you
can have it, AI.
CC Skyl b, Houston. We're about 20 seconds
from LOS and I'll give you a call at Madrid at i plus 51.
CDR Okey doke.
CC This is Skylab Control at 1 hour 38 minutes
gr
o
und
e
lapsed
t
i
gna
l
. Th
e
n
e
x
t
s
t
a
tio
n
to
acqu
ire
w
i
e
for the NCI maneuver the first phasing maneuver in the
rendezvous sequence. That manuever to be performed at
 
big service propulsion system engine with a Delta V or
change of velocity of 213.8 feet per second. Duration of
b
urn
_ 1
to be
206.2 by 125.7 nautical mil s. We'll come back up Just
pr
io
r
to
ac
q
u
l
s
tio
mi
nu
t
e
7/28/73 L
PAO his is Skylab Control at 1 hour 50 min-
utes ground elapsed time standing by for acquisition through
Madrid.
We
te
s
for you. Th first one is final MCI pad on page 1-5.
PLT Okay, stand by one.
, i IIm oo t e
ahead.
CC Roger. Starting with - there is Just
3 or 4 changes but I'm going to read the whole pad, and I
think it will be easier, starting with NOUN 95. 002, 18, 06,00,
plus 2148, plus 4 zips plus 4 zips. 179, 075, 002; 2005,
00
1
0
, gO
a
hea
d
14
8
plus all balls, plus all balls; 179, 075, 002; 2005, 0010.
CC Roger that's correct. And I'd like to
change the shaft and trunnion down under the burn attitude check
Just below that, Jack. I'd like to change the two numbers.
Shaft should ead 2494, trunnion should read 379. Go ahead.
PLT Okay. New shaft and trunnion are 2494
and 379.
CC Roger. How about flipping up to page
1-Alfa. And this will be an update to the backup GDC align
pad.
3
CC Understand.
also next, PLT, on that
blank on the left you might can write out, we'd like
you to do a PIPA bias update for us If you'll take down
the numbers, this will be a VERB 21, NOUN 01. Over. And Skylab,
Houston, you can go back to block. We've got the vectors up.
PLT Oka
C
ddr
e
ss
1452, data 00665, address 1454, Data 76647, address 1456, Data
035
7
0
. Go
a
he
ad
address 1454 is 76647, address 1456 is 03570.
CC Roger, good read back. And if you have
the results of your B mag 2 comparison check on page 1-4,
we'd llke to have that. And we've looked at the burn, and
you're go for the NC1 burn.
 
7/28/73
And say again the page.
CC It's on page 1-4 kind of at the top, Jack,
on the righ hand column BMAG 2 comparison. While you're
looking for that. Flight wants to know how you guys all llke
zero g today?
PLT We're doing great. We got two suits
off. We don't have any B mag comparisons for you yet.
CC Okay_ good. We're coming close to LOS
here at Madrid and we'll see you down at the ARIA at about
2 plus 25. You're go for NCI. See you.
PLT O
i
n-
utes elapsed time Madrid has loss of signal. During this pass
Capcom Dick Truly updated the information for the first phasing
maneuver. Ignition time has changed by I second Ignition
now at 2 hours 18 minutes 6 seconds elapsed time. The total
velocity change has changed by i foot per second. It is now
214.8 feet per second. The duration of the burn remains at
i0 seconds. The expected resulting orbit has changed by a
f
e
5
h
e
spacecraft is out of range of a tracking station. We would
hope to get a burn report through a tracking plane, an ARIA
aircraft. We hope to acquire the spacecraft through ARIA in
27 minutes. At i hour 58 minutes ground elapsed time, this
is Skylab Control
END OF TAPE
7/28/73
CC Skylab, Housto through ARIA for 8 minutes.
CDR Houston, Skylab. We hear you inter-
mittently. Not too clearly, though.
CC Skylab, Houston. We got a lot of static.
I can barely hear you. We are interested in knowing how
the NCI burn went, though. Go ahead.
CDR It came off correctly. On time. We
d
i
dn't
c
8
. Th
e
star
-
check that you gave us, star 25 was correct. However, using
the horizon check, which - as sort of a backup, the horizon
was not anywhere near the 12 degrees window mark at burn time.
It was up around 35.
CC Roger, CDR. I copied all of that. And
one more question. We wanted to verify that you got the
P PA ias in r r o h NCI ur .
CDR We got them in.
CDR
to burn.
CC Roger, CDR. I understand you did get
them in. Be advised that I do have a star ACT pad for you,
but I'll give it to you later when we have better COMM, and
i
y
for it. We've still got about 6 minutes left here at ARIA.
CDR R
PLT No, the one that's supposed to be going on
n
ow
CC Negative. CDR, negative. I got that
other option 3 and we're a little bit ahead of you. We
Just thought prior to this ARIA pass you might possibly get the
one that's coming up right now. If not, no problem. We'll get
it at the states.
CDR Okay, we weren't planning to do that for i0
mo
re
mi
nu
t
e
s
d a
little problem with the manual drive, on the optics and in direct.
When we dr
Just keeps going. We're having a little trouble setting the
proper angle so we could (garble) look out at a star. It's
(garble) ra her rapidly. And we haven't had any trouble
with auto optics, however. It points very well. We don't
 
7
73
to go to a design shaft and trunnion then it's almost impossible
to do. So it's really really better to take it easy on it.
CC Roger_ CDR. copied that and no
particular hurry on the P52. We'll take it when you've
got it. We're standing by for 4 more minutes.
CDR Starting on the P52 right now. All systems
are check and (garble) look good.
CC CDR, Houston. CDR, Houston. You're
Just
abo
CDR Houston, we did our GDC allen and got a
(garble). We'll give you that information at the next station
because we have difficulty hearing you.
CC Skylab_ Houston. We're about 1 minute
from LOS at ARIA. We'll see you a Goldstone at 03:01_ and
Z'II have a star a t pad for you u there. You've been
Just about unreadable for the last 3 minutes of the pass
and so I didn't get any of the information during that time.
CDR Okay, I'll read it again to you if you can
tak
e
E
ND
O
7/28/73
PAO
T
hi
s
i
s
Skyl
through that airplane. Weather conditions in the area are
not conducive to good communications. A1 Bean did report that
the first phasing burn was performed on time. He also reported
that they are having a problem with the manual drive on the
spacecraft optics. The optics don't want to stop, keep going
in manual. However_ the auto drive is giving them no trouble.
Trouble with the manual drivep but not with the auto drive.
The G
bo
ut
26 minutes. At 2 hours 35 minutes elapsed tlme_ this is
Skyl ab Control.
END OF TAPE
7/28/73
minutes elapsed time. When the spacecraft reaches the
Goldstone tracking station in about ii mlnutesj CAP COM
Dick Truly, will check with the crew to determine what
d
ri
v
we would expect an over-shoot on the manual drive. That
would be normal for that manual drive. In any event this
situation is not a serious problem. Flight Directo
Phll Shaffer places it in the nuisance category, but not
a problem. The crew reported during the ARIA pass that they
were overshooting with the optics in manual drive, but they
had no trouble with the automatic drive. We'll get more
information on this when the spacecraft reaches the
Goldstone station. We'll come back up Just prior to
a
cq
u
i
si
t
i
o
END OF TAPE
elapsed time. We're s anding by for acquisition through
Goldstone.
CDR Okay, we got some news for you. We
worked
o
e
hadn't zeroed it well enough_ although we'd done it a couple
of times, because we w nt back and zeroed it again and
drove it manually both in resolve and direct and it worked
perfectly. So, scratch that up as a mystery at the moment.
CC Roger. The one question we had on that,
AI, was, did you see this phenomena both driving it in high
and low rates?
CDR We saw it in all rates. And it looked
llke it was driving in high in all ratesp but things are
working well at the moment.
CC Okay, let me continue down my list then.
We're a little bit puzzled about the horizon check. We're
still thinking about that one. There was some thought that
it might be possible that you had seen the terminator
because of the conditions you were in at the time, however,
we really Just don't know. We're tracking you here a
Goldstone, but we'll have to run the information and by
Madrid we'll have a good look at the way the NC-2, correction,
the NC-I burn went. And there's one number on your P52
option 3p which is the now 93Z that l'd llke for you to
give me again.
you mention this business about the terminator, I wouldn't
be surprised if you're right.
CC Well, the terminator was quite a bit
below you there and we' re checking angles. That might have
been right, but we're a llttle bit puzzled as to how the
star check could have been so good and the horizon check not.
B
CDR I sure did. Let me give them to you
right now. NOUN 20, 178 74, 15509, 35982. Now the ASLP thumb wheels
were 1776 1581 3594, and that was a Delta T of 46 Now
we have a BMAG 1 comparison going at this time and we've
been 25 minutes into it. So, next time we talk with you,
we'll give you some information on BMAG I, also.
CC Good show. I've got an NC2 preliminary
pad for you, page 1-9.
 
7/28/73
PLT And, while you're thinking about that,
I completed the fuel cell purge and I notice on fuel cell
1 the hydrogen flow dldntt quite come back to where it was
to begin with. Itls righ at about - it appears to me about
.01 p
oin
g
t
o
copy the NC2 pad_ I am going to have a Delta VY for you.
It's printed in there in zeros, but I have one. The reason
is you have a slight out of plane and we think we're a little
bit better off getting it out of the way here at NC instead
of saving it for - by doing it here we should reduce what
we have to get out in NCC and NSR.
CDR Sounds llke a good idea. We're ready
t
o
c
o
py.
plus 1535. Okay, here's your Delta VY, minus 014.0. Okay,
starting again with Delta VZ, plus 4 balls, 180 256 356
1397 0007. Weight 30557, trims plus 138 plus 041. Go ahead.
CDR Okay. 004 335700 plus 1535 140 that's
a minus, plus all zips 180 256 356 1397 0007 30557 plus 138
plus 041.
CC Okay, and we'd llke to give you a burn
star check for these burns since we have a couple of
funnies. For this one it'll be star 13 and that should
give you a shaft of plus 318.4 and a trunnion of plus 07.7.
Tw
o
remar
k
,
which is nominal and the oth r one was that Delta VY was
due to a slight out of plane. I already told you about
that one.
second.
business_ the more I think you're right.
CC Skyla
e
crease
in helium and propellants in QUAD Bravo and we' d llke to
se
cure
t
ha
CDR Nell, I tell you. We were Just getting
ready to tell you that we got some sort of sparklers going
by the right hand window, over by Jack, but we don't have
any going by the left. And it's quite a bit. We just did
that purge and we thought maybe that was it, but maybe
we've got something spraying out that side. I don't know.
CC Roger, we'll secure QUAD Bravo here
 
7/28/73
PLT It looks llke you're driving through
a sn
propellant secured?
CDR Okay i we did both of them. And we've
still got the snowstorm out the right side there.
CC Rog
to do
co
urs
e
w
e
c
a
n
't
tell whet fuel cell 3 is doing on H2 because the meter isntt
working.
CC Skylab, Houston. While we're continuing
to look at this. I got a couple of other notes. One is
that the coolant problem, Jack, that you saw ust after
launch was almost identical to the indications that Pete
and his guys got on SL-II, and we think that was due to
a situation in - out in the radiators. The thermal con-
traction in the radiators and was a nominal situation, no
problem. I have a star acquisition pad on page l-Alfa, if
we have a ch
.
CDR Can I go ahead and get my H2 purge line
heater off in spite of what's going on. Looks like -
END OF TAPE
7
/2
8
7
3
PLT Can I go ahead and get my H2 purge llne
h
e
at
er
off
i
n
s
st
o
ppe
d
f
o
o
oking
PLT Some of the particles are bigger than
others. Some of them look llke pieces of frost and others
look like a very, very fine rain, and then there is a bunch
of them that streak by with sizes in between.
CC PLT, Houston. On fuel cell i, the EECOM
would llke you to cycle the H2 purge llne heater, please.
PLT
R
oger.
EE
C
OM
w
vised that we're about
20 seconds from LOS here at Goldstone. And we'll pick you
up at Canary at 03:25.
CDR Okay. And we'll be standing by for that
star acq pad.
CC Okay.
PLT Okay, I cycled it and it went back to about
the same place. Do you want me to leave my H2 purge llne heater
o
CC Negative, PLT, if you hear me, you
can
tu
rn
u
tes
elapsed time. We do have loss of signal. The next station
to ac uire will be Canary Islands in about 14 minutes. We've
asked the crew to secure the reaction control system quad B,
service module reaction control system quad B. We noticed
that both the helium and propellant quantities were decreasing
in that quad. A1 Bean reported sparklers as he called them
going by the right-hand window. The Pilot Jack Lousma referred
to it as a snow storm. As we lost communication there, he
refer
r
e
d
g to look at
this situation to try to understand it. Both fuel cells look
normal. There appears to be no problem there. A1 Bean reported
that the optics work well now in both modes, both manual and
auto. He chalks it up as a mystery as to why he was getting
the overshoot. He remarked that maybe they hadn't zeroed
the optics well enough. But he would chalk it up as a mystery.
During this stateside pass, the flight dynamics officer was
tracking for data to confirm th first phasing burn. We
won't have a good handle on that until the spacecraft reaches
the Madrid station. At that time we should be ab e to confirm
the results of the first phasi
n
c
7_28_73
That could change some based on the results of the tracking
data. But the preliminary pad calls for the second phasing
maneuver ignition time of 4 hours 33 minutes 57 seconds
elapsed time. A Delta V of 153.5 feet per second. Duration
of the burn 7 seconds. And the expected orbit 216.3 by 202
nautical miles. We'll come back up Just prior to Canary
in about i0 minutes. At 3 hours 14 minutes elapsed time,
this is
7/28/73
MCC This is Skylab Control at 3 hours 23 minutes
elapsed time. We' re standing by for acquisition at Canaries and
have overlapping cov
correctly. We'll stand by for communications here. Itts
about a 7 minute pass.
CC Skylab Houston. AOS, Canar for 7 minutes.
CDR Roger. Loud and clear, Houston.
CC Roger. I wasn't sure you got my last
transmission. It was to Jack that it's okay to turn the
purge lln
PLT Okay. Le
t me te
CC Okay.
SC I set the DAP at 11002_ 11011. I turned
off all quad B for roll BD roll and Ifve turned off quad
B in yaw auto switches. And I got A and B roll on.
CC Roger. Thank you, you're right with us.
That's exactly what I was going to suggest.
PLT Okey doke. We've been looking at this
m
al
l
pr
o
c
e
du
re
and
now the pressure doesn't appear to be decreasing. I will
say that the sparklers that we were having out the righthand
window are gone. But that of course could be ecause of the
hydrogen dump.
CC Roger. Okay. I've got a couple of other
things to tell you. We tracked you at Goldstone, and it looks like
you got off a real good execution on the HCf burn. So we're
still thinking about that funny horizon check, but the burn
went well. We do not have any vectors if we need to up-llnk to
y
ou
a
h
e
VH
F
have
been turned on, and they appear to be working okay. And
I
ha
ve
CC Okay. On 1-Alpha the only thing that l-
that changes on it, AI, are the shaft and trunnlons for the first
and second stars So the first star shaft angle is 2518173 -
correction - shaft is 2518; trunnion, 0372. For the second
star shaft 0466, trunnion 0347.
PLT Okay. 2518, 372, 0466, and 347.
CC That's correct. You got it.
CC And CDR, Houston. On the optics problem
you
h
a
 
7/28/73
you - when you - that you put it in low rate and leave it
there.
right now.
CC Roger.
p urge ?
u, CDR,
be advised we did see quad Bravo decreasing before we did the
H2 purge, so it might have been that. It was well - I'ii
take it back - running a little bit lower in quantity before
we did the H2 purge. And we're look - -
CDR Okay, let me give you-
CC Go ahead.
give you the r
li
gn
i
t
do
w
gotten it all.
CDR Ok ay.
from LOS. Honeysuckle at 4:07.
CDR Roger.
CC Skyla
CDR O
MCC This is Skylab Control at 3 hours 32 minutes
elapsed time. Canaries has had loss of signal and the
next station to acquire will be Honeysuckle, Australia in
about 34-1/2 minutes. The flight controllers here are continuing
to look at the quad B situation. Don't have answers for that
yet. The crew has reconflgured for attitude control without
using
q
ua
contamination in the rate switch. Wetll come back up Just
prior to acquisition at Honeysuckle. At 3 hours 33 minutes
elapsed time, this is Skylab Control.
END OF TAPE
7/28/73
P
6 minutes elapsed time. Skylab coming within range of the
tracking range at Honeysuckle Australia for a 7-1/2 minute
pass.
for 7 minutes.
onto the workshop VHF.
CC Roger. And I've got 3 pads to read you.
Th
e
fir
CDR Okay, we've got a lock on. And it looks
a li
t
shows about 60 miles. So we add that to the ycle thing and
we've got not bad distance. Okay, ready to copy.
CC Roger, Starting with NOUN 28, 004, 33, 5500
plus 1554; the Delta VY is minus 015.0. Starting again with
Delta VZ, plus 4 balls, 180, 256, 335, excuse me, correct
that. The yaw for NOUN 22 should be 355. Delta VC 1427, 0007.
Go ahead.
a
ll
z
ip
s
1
80
CC Roger. I'd like to correct on NOUN 22 AI.
T
h
e
5
5.
G
you dropped out. Say again please.
CDR Okay. 180, 256, 355.
CC Roger. That's correct. And on that
star check for star 13, I'd like to correct the shaft and
trunnion. The shaft should read plus 314.8, trunnion plus
08.1.
CD
R
O
k
a
y
pad
, p
age
1
0002_ plus 0009, 180, 074, 001, 0236, 0002. Go ahead.
CDR 005, 20, 0000 plus0370 minus 0002 plus
0009; 180 074, 001, 0236, 0002.
CC That's right. And the weight is 30,
085, trims plus 139, plus 034. And a star check for this
burn. Star 25 shaft plus 246.7, trunnion plus 38.0. Go
ahead.
plus 38.0.
nary pad on next page.
 
7128173
CC Okay. Plus 0174 plus 0082 plus 0019, 183
285, 026. Skip Delta VC, I'ii get that for you later. Burn
tim
CC Break_ break, CDR. Stand by one before
you read back. Skylab, Houston. If you can continue to get
marks here_ we'd appreciate it. We're not sure why you've
stopped here.
CDR Okay, we'll take a look for the tracking
light again. When it went into the dark we could no longer
see it, so we stopped taking marks. We'll look out there
again.
CC Okay D and I'm standing by to copy your
re ad back.
CDR Okayj read back, plus 174 plus 0082
plus 0019, 183, 285, 026, Delta VC will come up later, and
then 0001, 29972, plus 139 plus 032.
CC Roger. That's a good read back. We're
about 1 minute from LOS here at Honeysuckle. WeVll be at
Hawaii at 4:26. Be advised we are talki g about here a
troubleshooting procedure on quad Bravo. And I'Ii be
t
ot
changed either in the manlfold or the helium tanks since we
shu
on the ground.
PAO This is Skylab Control at 4 hours 15 min-
utes elapsed time. Honeysuckle has loss of slgnal, and
Hawa
ii
wi
ll
a
c
qu
ire
Truly advised crew that trouble shooting procedures for ser ice
module reaction control system quad B are in work here in
t
h
e
c
o
n
t
r
o
e up
to t
he crew
at Hawaii. A1 Bean reported that there has been no further
decrease in helium or propellant pressures in that
quad since they shut them down. We confirm that on the ground.
We passed up a flnal maneuver pad for the second phasing man-
uever. Ignition time 4 hours 33 minutes 55 seconds elapsed
time. That burn will take place before loss of signal at
Hawaii. The total Delta V of that maneuver 156.1 feet per
 
7/28/73
a
s
erv
i
c
202.3 nautlcal miles. Present orbit is 206.8 by 125.3 nautl-
ca1 miles. We also passed up preliminary information on the
NCC maneuver, the corrective combination burn. Ignition
time of 5 hours 20 minutes elapsed time, no seconds on that
ignition time, 5 hours 20 minutes even. A change of velocity
of 37 feet per secondp a burn time of 2 seconds. And we would
expect the orbit to change as a result of that maneuver to
230.1 by 212.5 nautical miles. And the prellmlnary, pad was
read up for the NSR maneuver, that's the coelliptlc maneuver.
The maneuv
10 nautical miles below the orbit of the Saturn workshop.
Ignition time for NSR, 5 hours 57 minutes even. A Delta V
of 19 feet per second. A burn time of 1 second. Resulting
orbit 230 by 222.4 nautlcal miles. We're 7-1/2 minutes away
from acquisition at Hawaii. Wetll come back up Just prior to
ithat pas . At 4 hours 18 minutes, this is kylab Control.
END OF TAPE
7128/73
minutes elapsed time. We're standing by for acquisition
through Hawaii.
CDR Roger. We're Just standing by ready
to do the burn.
CC Roger, AI. I have procedure here that
we're going to be doing after the burn up at Goldstone on
the QUAD. If you got a couple of minutes, I thought I'd
like to describe what we're going to do while we watch it
on the ground. If you're too close to the burn and would
llke to put that off, I'll be glad to. But I thi_k I can
e
p
l
ain
nd
CDH I'd prefer you waited til Goldstone.
CC Okay, we'll be prepared right at
Goldstone AOS and right after we - I guess - We should watch
you do the burn here and we' ii get a burn status right
after the burn and then right at Goldstone AOS we'll set up
a particular configuration and step right to it.
CDR Sounds good.
CC And CD
going to be commanding the spectrometer ON here at Hawaii.
CDR Okay.
CC Skylab, Houston. Controllers have
looked at the burn. You look real good and you're GO
for NC-2.
CDR Roger.
PLT Dick, I notice when we go darkness the
heaters come on. I guess, the main bus is getting down to
around 25-1/2, 26 volts and the fuel cells really put out.
I'm so
I notice that the battery, entry batteries are taking quite
a
lo
ad
r
i
ght
n
ow.
PLT And we Just got an 02 flow high, Houston,
it seems to be staying up around 0.9 right now.
CC Roger, Jack. And EECOM's happy with the
electrical power system right now, so your procedure of
Just stand by watching it is a good one and 02 off llne
he thinks is due to the enrichment procedures we're
going through.
CC Roger.
a
t
we're staying in low rate, it's next t impossible to get
the starcheck done, because it takes so long to get to the
shaft and trunnion angles of the stars.
CC oger, CDR. We had thought about that,
and we were hoping generally, it would be possible to get
close to those angles a little bit earlier, but I guess we'll
Just hav
you
kn
o
w
t
aren
't
able to do it with the authority we have in those shafts and
trunnions_ in low settings.
CDR We'll make sure we keep this GDC closely
aligned and we'll also every night period take a look for
and make sure that the IMU is centered in, so I don't
think we'll have any problem.
MCC We see the burns.
CDR There's the residual, Houston. 0 plus
410 and plus 610.
We'll see you at Goldstone at 437.
CDR Okay.
35 minutes elapsed time. Hawaii has loss of signal.
Goldstone wi l pick up Skylab in about 2 minutes. We'll
stay up live for the G ldstone acquisition. The guidance
an
N
C
2
b
g
ot a quad Bravo checkout I'd llke to get started on and one
note for Jack. You might expect the 02 flow hi
g
out every
10 minutes or so. It seems to be a combination of enrichment
proce
d
c
c
k,
we und rstand the i0 minute thing and expect to get a little
02 hig on the enri
c
c
o d
t
we're g
out the
d
see
t
oxidizer si
e and letting it go through a thruster. In case
that
do
esn't work after we look at that then we'll look a
t
a
pr
ob
t
o
do
t
ation
c
CDR Th
C
d
about
b
efore
i
CDR Sounds good.
e
've
go
d
h I do have the
numbers that I didn't have for you a while a go on the NSR
preliminary pad if you'
 
7/28173
CDR Roger. 0064 20 and 130.
CC oger. Th
CC Roger. Should be.
CDR You know, Di k, those green circular
fields that are - that they use those round irrigation things on
are pretty visible from up here even.
CC Roger.
CC Roger, easy to see, huh?
CD
CC Roger th
lessened even more ut hasn't quit completely.
CC Roger. Thank you.
CDE I guess it probably - I wonder if you can
tell from looking at the fuel usage in the other quad which
which way that thing's venting.
CC Skylab_ Houston we believe the vent where-
ever it is, is causing you to have a plus yaw because of the
reac
tio
,
Dick. They're - some of them come out looking llke kinds clots.
CC Roger.
from LOS Bermuda at 4:50 - 4:50.
SC Okay, we'll be waiting for you.
CC Okay.
a sh
ne
mo
r
e
s
t
e
p
a
t
Bermuda. I'll have that procedure for you when we get there.
CDR W
45 minutes elapsed time. Goldstone has had loss of signal.
Bermuda will acquire in about 4 minutes.
END OF TAPE
7/28/73
4
minutes.
3 minutes.
itt
l
e
bi
t
scra
tc
hy
here. We were a little bit late locking up on the QUAD.
We've had some second thoughts and at the moment we're
completely GO for rendezvous. We still have all our deorbit
capabilities and so we elect now not to troubleshoot i
any more, to avoid a possible hard start. And this is - we
since the procedure we were thinking abo t involved flig t
couple of the thrusters. How do you read?
PAO This is Sk
station has a ground problem. They are correcting it now,
but the spacecraft is out of range of Bermuda now. Canary
will acquire in less than 2 minutes. WeIll continue to
stand by.
tarily. W have overlapping co erage with Ascension on this
pass,
CDR oud and clear.
b
ack
t
h
e
r
e
in
Be
rmud
a
t
h
e
r
ej
in case you didn't hear, is we don't intend to do any more
t
r
oub
l
e
sh
ooti
completely go for the rendezvous. We've still got our deorbit
capabilities. And we'd llke to think about that one for a
while.
CDR Okay.
CC And while I'm waiting to see if we have some
final pads to read up to you here, on the optics. We think
the IMU looks so great, and you' re getting checks during
the tracking anyway, that we'll probably star checks are not
re
q
uir
e
uld li
ke to
make them, in order to save time, one thing you might con-
s
i
de
r
i
s
d
r
o
pp
i
n
M
e
nk
e
n
t
and
t
hen
g
o
i
n
g
into
P52 and letting auto optics take you to a star and then
reenter Menkent after that. But we really don't think that's
required.
CDR Okay. One thing we've had up here that's
a little unusual, we've had a glycol flow caution/warning two times
so far. It was on momentary, and we could only tell that
it was that particular caution and warning by pushing reset.
Each time we checked the pressures and everything, we found
the
m
CC Okay, we'll take a close look.
PLT You may notice we put a
little bit in the aeummulator too, way back after insertion, Dick.
CC Roger, PLT.
CC And Skylab, Houston. On that glycol
flow light, are those two caution a d warnings youtve men-
tioned that you had momentarily, were they recently? Or were
they the same ones that were reported earlier?
CDR We've had a total of 3 and we had the
mo
s
t
rec
e
n
t
rif
ted
by the right window. I wish we could have got a picture
of it. It was a piece of frost the shape of a cone,
the same size as the thruster nozzle.
CC Roger that.
PLT It must have been about 4 to 6 inches
long the long edge of the one.
 
7/28/73
CDR And Houston, are those NCC NSR pads going
to be the final ones, or have you got a couple in your hip
po
c
k
e
t
d
to r
e
in work now. We've still got about ii or 12 minutes between
these two sites, so there shouldn't be any problem.
CDR Okay. Well, we've got to go to final
comm here in about 5, and that's why I wondered.
CC Roger. We're hustling.
for NCC here.
CC Roger. NOUN ll, 005, 20, 0341 plus 0364
plu
s
5
0045, 180, 082, 002, 0232, 0002.
CC Roger. Good readback. I'd like t_ also update
the trims. Pitch is plus 14.7, yaw is plus 029, and I've got
an NSR pad for you.
CDR Go ahead.
0032
, 17
CC That's affirmative, and the trims are the same
for both burns. And we'd llke to switch quad Charlie to the
PSM.
CC Roger, and that's all I've got for you
here. We'll still standing by for about an 8 more minutes
at Ascension.
CC R
7/2
8
/73
busy. We've still got about 6 minutes left at Ascension.
We never d
a
on page 1-8. If
anybody has a chance, you might read it to us at your
convenience.
SPT Okay, it's a - Star 34 is the first
star. Star 41 is the second star our NOUNs 5 have zip for error.
NOUN 93 is plus 00020 minus 00037 and minus 00003. Time of
torquing was 3 hours 53 minutes 54.00. Over.
CC Roger. Thank you very much.
CC S
kylab, Hou
DR And it looks llke the CMC came up with
a solution that satisfied our comp, Houston.
CC Roger. We certainly concur, CDR, looks
real good.
Carnarvon at 05:40.
15 minutes elapsed time. Skylab is out of range at
Ascension now. Carnarvon will acquire in 25 minutes. During
this long pass over the Canaries and Ascension the decision
was made to do no more troubleshooting on the service module.
reaction control system QUAD B at this time. The experts
here on the ground want to think about the situation some
more. The crew had just started the troubleshooting pro-
cedure when they reported the snowstorm starting up again.
And a decrea
AD.
We
a
d
vised
them to shut it down again, and we'll do some more thinking
ab
o
u
t
i
t
h
e
r
system is performed by the reaction control system. And
none of that capability has been lost. Wetll come back up
Just prior to Carnarvon. At 5 hours 16 minutes, this is
Skyla6 Control.
7/28/73
38 minutes elapsed time. Spacecraft coming within range of
Carnarvon now. We'l he getting a burn status report from the
corrective combination maneuver which was perf rmed between
Ascension and Carnarvon. We'll stand by.
CC Skylab, Houston. Carnarvon for 4 minutes.
CDR Roger.
CDR Okay. Burn came off on time delta VC
minus 137 at attitude NOUN 85 minus 0.2 minus 0.I and minus 0.2.
And I applied the CHC solution as you know.
CC Roger AI, we got that. I got a couple of
other notes for you. One of them is is you might of supposed
that the PIPA bias update that we put in a while ago could
possibly have been from that venting that we had not expected
but that is not true. We do have a PIPA bias on board that is
good. And I have one correction in your checklist at about
6 plus 40.
CDR Go ahead.
CC Roger. There where you see the - the
VERB 48 entered for the DAP we'd llke to delete the part that
says load 4 Jet. We'd like to leave the DAP configuration as
it is. And Just a reminder for you since we're doing that
and we've lost this quad your braking authority and Z-translation
au
t
t
o
h
a
y.
f
ro
m
C
arnarv
o
but we've
got about a total of about 5 or 6 minutes left in this pass. I'm
standing by.
CDR e've been doing some daydreaming here
Just to make sure we understand it completely. If we ended up
using the SCS we wouldn't have any Z translation at all, as
long
as
l
CC Stand by.
c
orr
e
ct
CDR Okay, Houston That looks like the
solution we're going to burn. We us d the 18.6 for X and
0.6 from the first recycle and a 9.7 from this final (garble).
CC Roger, AI. We're looking at it with you.
CDR Everybody happy?
CC Skylab, Houston. We were not AOS and
did n
 
7128173
that that's what this is - these numbers are coming from
CDR Right. The post one was plus 18.6 plus
9.7 and plus 0.6 so we put the X in Z for that one and Y for the
final ¢omp and we're going to pro now.
CC Roger and we're happy.
CC Skylab, Houston. You're looking real
goo
d
7/2
8
/73
e
l
o
PLT Okay, GO he e.
CC Skylab, Houston. One minute from LOS,
H
aw
a
PLT Just for th record, Dick, I got an
unmatched sol tion fo NSR on the charts. Not quite as
good as yours, but they're in the ball park. I got plus 18.6
in X and plus 5.8 in Z, which is the one that was a little
bit off.
CC R
oger, J
m
inu
t
es
e
la
Hawaii wil acquire in about 13 minutes. The crew has
been given a go for the NSR maneuver. The maneuver that
will put the spacecraft in a coelllptic orbit i0 nautical
miles below the Saturn workshop. That burn will take
place between Honeysuckle and Hawaii at an elapsed time
of 5 hours 57 minutes 3 seconds. And we'll get a report
on that at Hawaii. Here's a review of the problem on
QUAD B, one of the four reaction control system sets of
en
gi
nes
o
n
t
h
e
s
er
v
ice
modul
e
. Th
e
r
e
ac
ti
by th
each unit or QUAD contains four rocket engines. The four
QUADS are located at equi istant points around the perimeter
of the service module. One at the top, one at the bottom,
and one each to the right and left. QUAD B is located on
the plus Y or the plus yaw side of the service module.
The QUADS are used in pairs. Any two adjacent QUADS for
rotating the command and service module. And any two
opposite QUADS A and C or B and D for motion up and down,
forward and ba
.
e are
four QUADS on the service module, any three can be used
c c s
when only 3 quads are being used. For instance, breaking
power will be reduced by one half as you heard Al Bean
remark during this pass over Honeysuckle. The problem
on quad B is occurring in one of its four engines arranged
to po
in
to
whi
c
h
f
u
e
 
7/
28
/73
was first noticed as a decrease in pressure from the
system, which indicated a leak somewhere. wo lines lead
from the oxidizer and fuel tanks to each engine. Valves
near the engine are opened and closed by the stick or the
hand control in the command module. Automatic Pilot may
also be used for maneuvering. The location of the leak
appears to be the oxidizer valve to the plus Y engine. It
is believed that a small leak has led to some buildup of
frozen oxidizer aroun the valve seat, thus causing a
continuing leak. No fuel is entering the engine combustion
chamber. By itself the oxidizer can move the spacecraft
slightly and this has been happening when the quad was
operational. To prevent the leak_ a main valve from the
bladders that hold oxidizing fuel is shut down. This stops
all pressure from the lines to each of the four quad B
engines. The main valve was open during the last pass over
the United States, and again sparkling snowflakes of
frozen oxidizer were seen from the command module windows.
Fligh Dire tor Phil Shaffer has ordered the main valve
closed and this isolation valve will be kept closed through
docking. During the next several days a thorough analysis
of the malfunction will be made by personnel here on the
ground. The valve will remain closed after do king to
prevent contamination of the atmosphere and hardware around
the Skylab space station. We're about 8 minutes away from
Hawaii. We'll come back up just priQr to to ac uisi tion
there. At 5 hours 55 minutes elapsed time, this is
$kylab Control.
7/28/73
PAO This is Skylab Contro at 6 hours 2 min-
utes elapsed time. Skylab is coming within range of the Hawaii
station. We'll stand by.
CDR Roger. Read you sort of scratc y, Houston.
CC Roger. Same here, AI. I'm standing by
for your NSR burn status.
C
DR
O
kay
were all zips, minus Ii0 and minus ii0. And
we burned th NOUN 81s that we discussed, namely the CMC.
CC Okay.
k, you've got a whole lot of
noise in the transmission. I wonder if you could ask the
comm guys to see if they can work on them.
CC Ro er. How do you read now, Jack?
LT I read you, but it sounds like you' re
standing underneath a water fall.
CC Roger.
CDR Actually I think that may be VHF from
the workshop. I've noticed that before we picked up the tone
we would et this sort of back ground noise from their transponder
just a steady scratch. Then when I try VHF range and reset it
would work.
PLT I just turned o f my VHF, Dick, and that's
what it is, VHF.
CC Roger, okay. I do have 2 or 3 notes for
you guys that I wanted to tell you here in Hawaii. We did
some talking about the breaking gates with this reduced
authority due to the quad that's out. And just to remind
you, the breaking gates are set up so that as long as you
stay ahead of them and par icularly hit the first one just
about on schedule, you sho ldn't have any problem following
those printed gates right on in. Another item is - you'd be
interested to know that the SIVB deorbit was successful a few
minutes ago. And Eecnm asked me to tell you that if you are being
bugged by the caution and warning due to this 02 enrichme t, i t's
okay on pane 252 to put the waste stowage vent valve to close
which should stop the caution and warnings. But I'm not sure
what your present stowage configuartion is at this moment,
so that night be inconvenient for you to do.
CD
d
it coming on. And we don't want to upset the stowage at the
moment, so we'll just go as configured.
CC Okay, fine. And one more thing, we'd
llke to transfer quad Alfa to the PSM.
PLT Okay, here it comes.
 
7/28/73
the stowage an getting to that vent valve. Another thing
is it would be okay :If you waited until after docking to
close that if that would be more convenient to you at your
call.
PLT Yeah, I hink it would. The only other
time we get in there is for a waste water dump. And it looks
like we've only got 40 percent. So, I think we'll just leave
it like you say. Thank you, Dick.
CC Roger.
CC Skylab, Houston. We're bout 20 seconds
from LOS at Hawaii. We'll see you at Goldstone at 6:15.
CDR Okay, the first recycle showed the time
at 7:16 4025, and there are the NOUN 91's is right there.
CC Roger, thank you, AI.
CDR Tell Duane Mosel and Mason Mines they've
got a pretty nice checklist here.
CC Roger. He's sitting right here, I sure will.
PAO This is Skylah Control at 6 hours ii min-
utes elapsed time. Hawaii has loss of signal, and Goldstone
will acquire in about 4 minutes. The crew repor ed a good
coelliptic burn and they saw her burn during this pass. And
the Capcom passed up the information that the SIVB second
stage of the booster deorbit was successful. That
stage reentered the atmosphere at an elapsed time of about
5 hours 56 minutes near the vicinity of the Marshall Islands
in the Pacific Ocean. We're about 3 minutes away from Gold-
stone. We'll continue to stay up live.
END OF TAPE
7/28/73
e
f
o
r
CC Roger.
CDR We can resolve the ATM solar system
real well. We haven't been able to see the workshop, I
mean, the workshop body or its wing 2, but we can see the
other.
27 miles.
lockup- 276. We think it will Jump here. We'll try
another lock on it.
3 minutes here at Goldstone. A couple of things for
you. One is when we get to Bermuda, if we could we'd llke
to get ahead of the tlmeline Just a little bit and do our
logic sequence checks. And, also, we figured out a way, we
think, that if you had to go to SCS control in the Z axis
you could get Z tra slation, but it is a little bit
inefficient, if you'd like to listen to that real quickly.
CDR I would love to.
CC Okay, if you are in SCS, and you want to
translate in Z axis, we'd recommend the following. A UTO RCS
SELECT switch is A/C ROLL, all of them to MAIN A, which
they are now. And then Delta i and Delta 2 to
MAIN BRAVO. In this configuration, you can get oth
plus or min s-Z translation. However, the efficiency could
be improved for a single translation to turn DI OFF, for a
plus-Z translation, or D2 OFF for minus-Z translation. Over.
CDR Okay. I understood all but the very
first sentence, Dick, about putting all - Did you say
putting all A/C ones on MAIN A?
CC That's affirmative. All the AC ROLL
JETS to MAIN ALFA.
mind.
CC Why don't you think about that a little
bit? And if we need to talk about it, we can. We're about
a 3 or 4 minute dropout. And I'ii call you again when we
get to Mila.
7/28/73
21 minutes elapsed time. Goldstone h
a
about 2 minutes. We'll continue to stand by. We're
showing a range of about 72 miles between the command and
service module and the Saturn workshop at this time.
END OF TAPE
7/28/73
Bermuda for the - ii minutes.
CDR Okay, Dick. We're ready to go on that
test when you are.
lock up real soli
CC Skylab we're going to drop out into a
keyhole here and we'll call you when we're
b
CC Skylab, H uston. We're out of keyhole
now. We're AOS Bermuda for the next 9 minutes. Our data is
locked up real fine and you' re clear to do the SEtS logic check
down through SEtS logic 2 of them on up anytime.
ODR Okay.
CDR Okay, we've got the SEtS logic up and n - 2 of
them.
good you' re go for pyro arm as required.
CDR I understand.
CDR Been doing a little thinking about this
procedure, Dick on SCS. Which way do we move the translational
controller for plus Z using this scheme?
CC ODR, Houston. It's - plus Z is a down
movement of the THC just like normal.
CDR Okay.
SC Roger.
r
e
l
im
in
a
ry
TPI
pad page 1-15. Anytime somebody gets a chance to copy we've
st
i
SC Okay. And I'm still a little puzzled
why we bothered to put AC roll on Main A unless we're going
to pull some circuit breakers or something. But I' ,m still a
little puzzled about -
CC CDR, CDR we'll have to give you a gotcha
on that one. It really doesn't matter. Main A or B as long
as AC roll is completely configured onto one - to the proper
bus .
CDR Gotcha, okay ready to go.
CC Okay, 937 007 12 20 28 plus 189 plus 3 balls
minus 066 plus 19896 plus 00101 plus 02726 skip delta VC.
 
7/28/73
CDR Okay. 007122028 plus 189 plus all zip
minus 066 plus 19896 plus 00101 plus 02726 0001 all zips
020 359 29905
o
nds
2 quad ullage and live got a docking attitude pad for you that's
a couple of pages over. I think it's 1-17.
CDR Okay. Ready to copy.
CC 191 354 003 go ahead.
CDR 191 354 003,
CC And incidently CDR on the TPI pad the
N
7/28/73
can fill in for you on a preliminary TPI pad.
CDR Go ahead.
Delta VC at ignition 2.3, tail off 13.3. Go ahead.
PLT 006 , 3, and 133.
CC R
PAO This is Skylab Control at 6 hours 35 minutes
ela sed time. Bermuda has loss of signal. Ascension will
acquire in about 6-1/2 minutes. We've passed up the final
pad for the terminal phase initiation of this rendezvous.
Ignition ti e 7 hours 12 minutes 20 seconds. The change
of velocity of 20 feet per second, a burn time of i second.
s s e v r c m s r c
m
od
ul
e
cl
o
si
u
p
r
sion. At 6 hours 36 minutes, this is Skylab Control.
END OF TAPE
7/28/73
4
1
m
inu
t
fifth revolution of the Earth. The Saturn workshop now in
its re
8 minutes.
7 minutes.
page 115, when you
I'ii b
CDR Read you real good.
CC Roger. Why dontt I go ahead and start.
If I have to reread any of it, I'ii be glad to. Starting
with NOUN 37. 007 164057 plus 182 minus 007 minus 087
plus 20298 minus 00804 plus 00504 0067 60001 001 010 357
23135. Go ahead
CDR 007, 16, 4057 plus 182 minus 007 minus 087
puls 20298 minus 00804 plus 00504 0067 0001 001 010 357
23
1
25.
CC Skylab, Houston. We've looked at all
TM. You' re looking real good. You' re GO for TPI.
CDR Okay. The solutions look pretty good
up here too. Thanks.
which is okay.
minutes elapsed time. Ascension has loss of signal.
Carnarvon will acquire the spacecraft in about 22 minutes.
During this pass we gave the crew a GO for terminal phase
maneuver in this rendezvous sequence. Updated the time
for the maneuver to 7 hours 16 minutes 40 second_ and as
you heard A1 Bean remark, that comes quite close to the
so
l
u
t
i
oa
rd
. To
t
al
c
h
a
n
ge
in velocity on _h_s update Js 20.2 feet per second. The
burn time remains th same as the preliminary pad. One
second. It's a service propulsion system maneuver. And
 
7/28/73
it should take place while the spacecraft is within range
of the
END OF TAPE
7128173
PAO This is Skylab Control at 7 hours 13 min-
utes. We're standing by for acquisition through Carnarvon.
CC Skylab, Houston, we're at Carnarvon for
10 minutes. We've got good data, we'll watch you do the
burn. And after you g
e
b
C
D
R We can see it as a nice little blinking li
g
ht
CC Roger, AI.
CC Skylab, Houston. If you called, I didn't
get it from you.
and we're on the way.
CC Rog
CC R
e
PLT I've got them, Dick, thank you.
CC And PLT, Houston. One correction on the -
that Mila time I gave you was an AOS not a LOS. I'd llke to
correct that. The correct number for LOS is 8:10:13, 8:10:13.
PLT Oka
CC Skylab, Houston. I think you' re through
with your first short data point. If you are, we've still
got about 3 minutes left in this pass. And some time I've
got a couple of notes I'd like to read to you about -
we'd llke to clean up the rest of the rendezvous book with
respect to this quad checklist changes. And also a do ck
DAP thing I'd like to give you.
CDR Okay, Just a second.
CC Roger. Any time.
CC Roger. First of all, on the configuration
for the dock DAP, we'd like for you to load, at your next,
b
est
opportunity, the VERB 44, inner register i, Ii011; regis ter 2,
00346; and register 3, 4 balls 3. Over.
CDR Roger. ii011, 00346, 00003.
CC Roger, AI. And I have two small checklist
changes. The first one is on page 1-16 in the rendezvous book.
On the prebreaking switch llst, delete the reference to your
auto RCS select switches. We've already t lked about the
c
o
c
ond
o
n
e
7/28/73
CDR Go ahead.
right hand corner in the section called after hard dock,
on the right-hand side about 2/3 of the way down, there is
a list of auto RCS selects to be turned off. I'd llke to
delete thrusters Alfa i and Delta 2 from that llst to be
turned off.
Bravo 3, and Delta 4.
CC That's affirmative, and be advised over the
evening and next couple of days, we're going to go through all of
the checklists from here for the misslon. And I'ii get you a
message up as to what corrections we'd like for the trim burns
and so forth, but this ought to take care of us for tonight.
CDR Ok
ab
out
15
se
c
ond
s
from LOS at Carnarvon. We're going to drop out about 3 min-
utes, and I'ii call you at Guam.
CDR Roger.
PAO This is Skylab Control at 7 hours 25 min-
utes elapsed time. Carnarvon has loss of signal. The space-
craft will be within range of the Guam station in about
2-1/2 minutes. We'll continue to stand by.
END OF TAPE
7/
28
10 minutes.
I'
ve
and make sure that's where we wantit.
CDR Ye
CC CDR, affirmative. DI and D2 to MAIN BRAVO.
CD
R
O
k
a
CC Roger.
Houston.
CC
Ro
ger
. Tha
n
k
y
o
u
, AI.
T And Dick, t f r t o , PI
charts give us X plus 16.1 and a Z of minus 7.3.
CC Roger, Jack. Thank you.
CC Skylab, Houston. We're about 1 minute
from LOS here at Guam. Goldstone at 7:53. Be advised that
while you're on your way up to the SWS today, we did have
a rate gyro redundancy management failure in the Y axis of
the SWS. We're pres ntly configured in Y 1 only in the Y axis.
We will be in that configuration at docking. Well that's the
only difference from the nomina as far as docking goes. We
wil
CC R
CC And Skylab, Houston. Incidentally, the
reason that call is coming up to you a little bit late is
because it just happened within the last 20 or 30 minutes.
CDR No strain.
CC Roger.
I'AO Thls I..+ Skylab ('*+,t rol ut 7 hour,i "+4
minute,_ elapsed timc,. Cuum hall had loss of ++lgnill.
 
7128/73
Goldstone will acquire in about 13-1/2 minutes. CAPCOM
Just advised the crew that only one Y rate gyro in the
Saturn workshop will he operativ at docking time. Vehicle
will be in an attitude hold. We should get television for
the first time on this mission at acquisition at Goldstone,
and continue that television transmission through lo ss of
signal at the Merritt Island station. This television will
be sent while the vehicle is station keeping with the
Saturn workshop. We'll come back up just prior to
acquisition at Goldstone. A
END OF TAPE
7/28/73
52 minutes elapsed time. Skylab coming up within range of
Goldstone now. That Y-rate gyro that was lost a few
minutes ago has not failed completely Flight Director
Don Puddy ays it can be updated but not within the time
availble before station keeping begins. We're standing by
for television at Goldstone. Picture coming in now.
CC Skylab, Houston. We're AOS Goldstone.
CDR Okay. Should have some TV down there,
Dick.
CC Roger. We can see you trying to lock up
but it's not - don't have a picture yet.
PLT All right we're looking at t
h
e
u
nderside
of it Dick, wh ch is the S149 out the antl-solar airlock and
we can also see the parasol flapping in the breeze.
CC Roger We have a good picture and we're
looking at it.
now,
Nobody's home.
e
picture to touch it up? We don't have the Ea
r
th in the
background yet but aside from that does it look like it needs
any focus r anything?
c
ture seems to
be blocked out by the bottom half I guess it is of the window
structure, but the pi
ayb
e
PLT Yeh, I noticed that all the way in. I
haven't been able to get rid of it.
CC Okay. Well the picture we do have
which is about the top 60 percent of the screen is pretty good.
CC And Skylab, Houston request you switch
quad Delta to the PSM.
PLT Roger.
PLT I don't know the reason for the - deal on
the bottom there, Dick. Can't seem to ge that out of there.
C
C PLT, Houston. INC suggests that the
color wheel might be stuck. You might take the camera and
just shake it, Don't knock it around hard but just kinda
jostle it on the bracket and possibly that'd get rid of it
but we do have a good pi
c
 
H
s us that
the same thing happened on II that during this phase we
did get hot quads and it was on A. So just keep an eye on
it and so will we.
CDR Reger.
try to han
hold, see if we can do better in orbit (garble)
CDR Which flight are we on?
CC Roger, Jack.
PLT Okay, Dick that half moon in the bottom of
the picture is f nction of something besides the window.
CC Roger. We just came to the same conclusion,
Jack and Inco suggests cycling the po er TV - camera power
switch off and then back on again.
PLT You mean S-band aux TV?
CC That's affirmative. Excuse me.
PLT Here's our home in the sky, Dick.
CC Roger, we're (garble) over at the moment
and we'll get /TV back in a second.
PAO There's a 90-second wait while the power
amp cycles back on. Getting another picture now. Correction
we're not getting a picture yet. The lower - about 40 ppercent
of the screen still blacked out,
CC Skylab, Houston. We got a picture back
now we can see the Earth in the background and apparently the
cycling the switch didn't help so we'll probably llve with
what we have.
PLT Funny old parasol, Dick, is really blowing
in the breeze. Looks llke about a i0 or 15 knot gale every
time the thrusters fire in just a very gentle flyaround here.
CC Roger. We ere watching that very thing
then.
flyaround at this point to avoid blowing that parasol away.
CC I think that's certainly your call and
lo ks like we concur.
PLT You can tell that the jets forced the
parasol up against the side the shiny surface of the
workshop as we fly around and then it's the recoil from the springs
the fishing rods that spring it back out.
CC Roger, Owen. We certainly concur. We
think that'd be a prudent thing to de.
CDR You can see i flopping there in the
 
7/28/73
we'd like to to tell you the truth. We'll try to drift off
to the side a little bit and then maybe we can prevent hitting it.
CC Roger, CDR. We concur with that.
C
it appears
to be rotated by about the 5 to i0 degrees as expected.
CC Roger.
PAO There's a good look now at the sunny end of
the Apollo telescope mount.
7/28/73
PAO There is a good look now at the Sun end
of the Apollo telescope mount.
CDR The problem is we're trying to slide around
to the front of it, and every time we fire aft thrusters,
which move us that direction, it tends to get under the
front edge of the sun shade. We'll try to Just drift a little
bit longer.
CDR We're drifting the - way - the best we can.
I'd like to turn a little bit to the left and show it to you
better, but every time I start to turn that way, it gives the
parasol a flip up at the front.
CC Roger CDR. o what yon think is best
to avoid as much as bowing of the parasol a6 you can. We'll
do without the picture.
P T Have you got any more suggestions on how
to get the half moon out of the picture, Dick?
CC PLT, the only other suggestion we had
is, you might try taking the lens off the camera and try
to turn th color wheel with your finger, but that's about
our last choice here.
CC It's been looking real good, Jack.
PLT Okay.
CC Skylab, you've got about 23-1/2 minutes
of daylight, and sunset time for you if you'd like t o Jot it
down is 8 plus 30.
PLT Okay.
CC Skylab, Houston. We've ta en a look at
both the CSM and the SWS and they both look good. You're go
for docking. We're ab
ut 2 minutes from LOS at Bermuda. We
expect to be at Carnarvon at about 8:52, so we'll see you
there. Probably at the Carnarvon pass or Guam following that,
I d
o
have some changes for you in the no coma section of the
checklist. So after you get docked and squared away, it's in
locker RI. You might get that out, and I'll get that out of
the way. You're GO for docking. We're about a minute and
• a half from LOS.
PAO This is Skylab ontrol at 8 hours i0 min-
utes elapsed time. We've had loss of signal. A half moon
bla
c
c
7/28/73
television transmission. The best guess at this time is that
the color wheel in his camera is stuck. As you heard Capcom
Dick Truly pass up the suggestion that they might try taking
th
e
lens off and removing the color wheel to see if that would
help the situation. Shaking the camera didn't help. The
crew has a GO for docking. The docking schedule in the Flight
Plan for 8 hours 30 minutes elapsed time. However, it will be
crew option as to the exact time they want to dock.
Whe they get in position, they've got to go to dock. The
nex station to acquire will be Carnarvon in 40 minutes.
At 8 hours 12 minutes elapsed time, this is Skylab Control.
END OF TAPE
7/28/73
PA
O
Thi
s
urs 51
minutes gr und lapsed time in the mission of kylab III.
Acquisition at Carnarv
Australia tracking station, at which point we should have
confirmation of a successful docking of the Skylab III
command service module with the Skylab
s
appeared to be in pretty good shape during the stateside
TV transmission of th
word from the crew as we acquire at Carnarv
o
e
s
Appr
o
clock. Standing by now for Carnarvon. We'll stay up through
brief gap across between Carnarvon and Guam. Skylab C
o
ntrol
7
minutes.
you read?
PAO No reply yet from the Skylab III crew. How
ever the spacecraft and space station engineers on the
ground believe from telemetry that the CSM is indeed docked
with the space station. Up llve for a reply as the spacecraft
comm
u
nic
a
tor
a
C
you read?
CC S
minutes.
C
minutes.
CC Roger. Loud and clear now.
CDR Okay. We're docked. That went real
well.