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XMM-NewtonXMM-Newton
Status of EPIC OperationsStatus of EPIC Operations
Guillermo Buenadicha & Guillermo Buenadicha &
Pedro CalderónPedro Calderón
Mallorca 8-April-2008Mallorca 8-April-2008
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 2
OverviewOverview
Routine operationsRoutine operations New DB itemsNew DB items Nominal OCR operationsNominal OCR operations Not nominal eventsNot nominal events AOB’sAOB’s
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 3
Routine OperationsRoutine Operations
RBI clock resync every ~194 daysRBI clock resync every ~194 days– Last on December 10Last on December 10th th 2007, next on June 212007, next on June 21stst..
Eclipse season fully nominal.Eclipse season fully nominal.– Almost everything performed automatically by timeline.Almost everything performed automatically by timeline.– Extra heating event happened because of human error Extra heating event happened because of human error
on operations due to being in eclipse season, but not due on operations due to being in eclipse season, but not due to the eclipse itself.to the eclipse itself.
– Moon eclipse on 06/04/08 (last Sunday…) requiring to Moon eclipse on 06/04/08 (last Sunday…) requiring to manually uplink the automatic commanding due to manually uplink the automatic commanding due to limited time available before perigee.limited time available before perigee.
Other than this, not badOther than this, not bad
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 4
New ODB 5.9New ODB 5.9
Released on 17Released on 17thth March March Includes (at instrument level):Includes (at instrument level):
– Refinements to avoid possible repeat of the extra heating Refinements to avoid possible repeat of the extra heating eventevent
– New hot stuff for MOS and PN (Bright Pixels)New hot stuff for MOS and PN (Bright Pixels)– Sequences for MOS 3x3 offset calculationSequences for MOS 3x3 offset calculation– Updated PN offset Activity (needed for mosaic)Updated PN offset Activity (needed for mosaic)– New Activity for PN Mosaic observation mode (with New Activity for PN Mosaic observation mode (with
CLOSE offset calculation followed by FW selection for CLOSE offset calculation followed by FW selection for OBS)OBS)
First fully planned revolution at SOC shall be First fully planned revolution at SOC shall be 1530, however some items (MOS) have been 1530, however some items (MOS) have been taken from 1520 (timeline at MOC)taken from 1520 (timeline at MOC)
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 5
New Hot StuffNew Hot Stuff
New versions of the MOS Bright Pixel TablesNew versions of the MOS Bright Pixel Tables– Now at version V10Now at version V10– Numbers still well within the limit of 50 per CCDNumbers still well within the limit of 50 per CCD– Checking derived parameter upgradedChecking derived parameter upgraded
New versions of the PN Bad Pixel TablesNew versions of the PN Bad Pixel Tables– Further reduction of the bright 64 column in CCD 11Further reduction of the bright 64 column in CCD 11
Changes in place since Rev 1515 (March 17Changes in place since Rev 1515 (March 17thth ) but ) but they will be not in full use until Rev 1530 (April they will be not in full use until Rev 1530 (April 1616thth) for PN, and 1520 for MOS.) for PN, and 1520 for MOS.
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 6
PN MOSAIC observation modePN MOSAIC observation mode
General idea:– Calculate the offset tables in slow
mode (100 repetitions) and with the FW=Closed
– Then observe continuously (with the requested filter) when the S/C moves from a pointing of the mosaic to the next one, and so on.
Will be offered in AO-8 (August this year).
The other instruments do not need operational modifications, impact only at Mission Planning level.
OBS MODE FW X
OFFSET FW CLOSE
OBS MODE FW X
OFFSET FW X
OBS MODE FW X
OFFSET FW X
OBS MODE FW X
OFFSET FW X
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 7
Last check of MOS1 CCD6Last check of MOS1 CCD6
Agreement from Cal Meeting Oct 2006 to execute Agreement from Cal Meeting Oct 2006 to execute a CCD-6 health check periodically every 6 monthsa CCD-6 health check periodically every 6 months
Last check performed on February 22Last check performed on February 22th th 20082008 The operation was quick and easy (ad hoc Event The operation was quick and easy (ad hoc Event
Designator created in DB since March 2007)Designator created in DB since March 2007) No changes in results (still full of No changes in results (still full of AFFAAFFA hex events) hex events) Furthermore: We even tried with a non foreseen Furthermore: We even tried with a non foreseen
pseudo extraheating that did not resurrect broken pseudo extraheating that did not resurrect broken CCD (surprised ???)… we’ll keep on trying…CCD (surprised ???)… we’ll keep on trying…
AAnthonynthonyFFAFFAbbeybbey
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 8
CCD6 image from SOCCCD6 image from SOC
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 9
CCD6 data from MOCCCD6 data from MOCObtained using LELA
LELA has capabilities to monitor in Real Time the science data, but no archive or retrieval mechanisms
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 10
MOS noise reduction testMOS noise reduction test
MOS low energy noise suppression tests were performed in revolutions 1453 and 1470 (16th Nov and 18th Dec).
Closing action from last Calibration from Meeting @Peguera November 2007
VID voltage of MOS-1 CCD2, MOS-1 CCD4, MOS-2 CD2, and MOS-2 CCD5 were raised from the nominal 20V to 25V.
A Cal_Closed exposure was taken under this settings.
Looks like there is no improvement after data analysis (M. Stuhlinger).
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 11
Unintended “Extra” HeatingUnintended “Extra” Heating
On 27th January, just at the end of the last eclipse of the season, the EPIC CCD substitution heaters switch-OFF telecommand failed at ground (software problem, understood and now solved)
The operator did not realised the impact, and did not reissued the TC.
Also, reaction to subsequent triggering alarm was not adecuate
Both CCD substitution heaters (A + B) were ON along 4 hours affecting all three EPIC cameras
Maximum temps: PN –52 °C, MOS –75 °C Looks like no impact was seen in subsequent CAL
observations
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 12
Unintended “Extra” HeatingUnintended “Extra” Heating
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 13
MOS into radiation, rev 1519MOS into radiation, rev 1519
On 26/03/08 LELA system was not receiving TM due to a misconfiguration of system
No alarm raised. LELA is now source for radiation parameters based on instrument inputs– 19:01 z EDS001 / KDS001 went OOL (seen
only at SOC the day after)– 19:32 parameter FD103 HL (MOC
calculated) – 22:35 z Radmon alert– 3.5 hours impact
NCR-VIL-131 raised to cover it LELA now connected to MCS system, task
in XMCS detects if LELA stops issuing data (granularity 1 minute)
OOL Xref table upgraded to become even more robust and close MOS in case of PN closure for FD103 (HL) or FD131 (HH)
NCTRS-A NCTRS-B
LELA XMCS
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 14
MOS into radiation, rev 1519MOS into radiation, rev 1519
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 15
MOS into radiation, rev 1519MOS into radiation, rev 1519
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 16
MOS 3x3 OFFSET MOS 3x3 OFFSET Test on 19th March, once the new ODB was available Aim was to perform an offset calculation On Board by MOS
instruments with settings set for 3x3 mode, followed by an small observation making use of the offsets derived.
Last offset calculation performed in 2000, and was 1x1 !!! The current available 3x3 offsets were theoretically derived
by T. Abbey back in 2006 2 problems (believed uncorrelated) found:
– MOS-1 offset patch from ground failed– understood, wrong TC used not allowed in IDLE mode. – A new DB is required in order to allow for one. – Offsets were calculated and sent to ground for all CCD’s,
data under analysis.– MOS-2 failed the offset calculation on CCD-1 (first one to
be called).– Seems a controlled failure (event report sent to ground)– no further activity performed.
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 17
Anomalous image in MOS 2Anomalous image in MOS 2 MOS2 show an anomalous MOS2 show an anomalous
image when observing into image when observing into a slew in Full Frame mode, a slew in Full Frame mode, and with the filter wheel in and with the filter wheel in Cal Close positionCal Close position. PN . PN show a bright source at show a bright source at almost the same time, when almost the same time, when observing with FW=Medium observing with FW=Medium (EFF). MOS1 saw nothing (EFF). MOS1 saw nothing unusual with FW = Cal unusual with FW = Cal Close. The telemetry show a Close. The telemetry show a singly different time singly different time distribution for MOS1 and distribution for MOS1 and PN events (see PN events (see APID_Statistics). APID_Statistics).
Problem is… Why on MOS-2 Problem is… Why on MOS-2 and not MOS-1? Why so long and not MOS-1? Why so long period transmitting data period transmitting data (not compatible with slew (not compatible with slew FoV transit?)FoV transit?)
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 18
Anomalous image in MOS 2Anomalous image in MOS 2Analysis of the first minute of data
Light curve shows 3 chunks of data, with two holes
Consistent with information from counting mode
09:17:09 to 09:17:25 (16 seconds) 09:17:49 to 09:18:09 (21 seconds)
Pattern analysis points to 31, Optical…
Removal of pattern 31
Strong optical sources? YES, Canopus…
See it in PN FOV…M. Stuhlinger, R. Saxton, M. Guanazzi
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 19
Anomalous image in MOS 2Anomalous image in MOS 2What happened?2008.056.09.14.32 CMD F0003 PN OBS
2008.056.09.14.59 CMD EU046 WD M1
2008.056.09.15.09 CMD E0049 FW PWR ON
2008.056.09.15.09 CMD KU046 WD M1
2008.056.09.15.14 CMD E0085 FW TO CLS CL
2008.056.09.15.29 CMD K0049 FW PWR ON
2008.056.09.15.34 CMD K0085 FW TO CLS CL
2008.056.09.16.14 CMD E0050 FW PWR OF
2008.056.09.16.19 CMD E0031 LOAD HBR
2008.056.09.16.24 CMD E0037 REP HBR
2008.056.09.16.29 CMD E0081 STOP SEQ
2008.056.09.16.34 CMD K0050 FW PWR OF
2008.056.09.16.39 CMD E0003 M1 OBS
2008.056.09.16.39 CMD K0031 LOAD HBR
2008.056.09.16.44 CMD K0037 REP HBR
2008.056.09.16.49 CMD K0081 STOP SEQ
2008.056.09.16.59 CMD K0003 M2 OBS
M. Stuhlinger
G. Buenadicha & P. CalderónG. Buenadicha & P. Calderón SOC Operations Support Group
XMM-NewtonXMM-Newton
8 Apr 2008 Pag. 20
Anomalous image in MOS 2Anomalous image in MOS 2
8 Kwords
48 Kwords
Pinhole in the CLOSE filter
Light entering through Cal Hole
Light collected during FW movement in open filter positions and transmitted only after Enter Obs
How is it possible to produce two counting periods?
Where is all the data archived??? Size of buffers, including FIFO…
Why just CCD 1??? Is the slew time compatible with this???
What is more fun. Enter OBS should reset the 8 Kwords FIFO, thus leading to no data up the chain. Also pointers in HBR should be reset
Why is the CCD-1 data starting on frame 11?
What now?
Redefine the sequencer strategy during FW movement?
Screen for data for other similar events?
Does it affect start of exposure only in slews? Slew survey.
1 event = 6 words
Around 7000 events
transmitted
Counting accounts for
10000!!!
1 CCD slew 7 seconds