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B.E.E.P. Basic Earth Exploration Probe
Siberian State Aerospace UniversityKrasnoyarsk
Russia
International class
B.E.E.P. missions
• Primary: Temperature and pressure measurements : SUCCESS
• Specific: Photography and transmission them with realtime error correction : SUCCESS
• Comeback mission : FAILURE
Temperature and pressure measurement results
Data pre-analysis`Altitude during descent
-150-100
-500
50100150200
0 10 20 30 40 50
Time, s
Altit
ude,
m
Altitude (m)
Alt_bar (m)
T2 (deg,C)
27,2
27,4
27,6
27,8
28
28,2
28,4
28,6
0 5 10 15 20 25 30 35 40 45
T2 (deg,C)
Temperature vs. time
101000101200101400101600101800102000102200102400102600102800
0 50 100 150 200
Altitude, m
Pres
sure
, Pa
Measurment
Theory
Temperature vs. altitude
27,327,427,527,627,727,827,9
2828,128,228,328,4
0 20 40 60 80 100 120 140 160 180
Altitude, m
Tem
pera
ture
, deg
. C
Pressure and temperature vs. altitude
Photography mission results
Come back mission analysis
Parachute sealing
-200
-150
-100
-50
0
50
100
150
200
0 5 10 15 20 25 30 35 40 45
Roll (deg)
Pitch (deg)
Yaw (deg)
Roll, Pitch, Yaw vs. time
0
100
200
300
400
500
600
0 5 10 15 20 25 30 35 40 45
Pos1
Pos2
Left and right actuators position vs. time
-200
-150
-100
-50
0
50
100
150
200
0 5 10 15 20 25 30 35 40 45
Yaw (deg)
Heading (deg)
Yaw and heading vs. time
-150
-100
-50
0
50
100
150
200
0 5 10 15 20 25 30 35 40 45
Altitude (m)
Alt_bar (m)
Speed (m/s)
0
2
4
6
8
10
12
14
0 5 10 15 20 25 30 35 40 45
Speed (m/s)
Velocity vs. time
GNSS and barometric altitude vs. time
Solution
• Increase velocity of gliding• Increase gliding factor of parachute
Lesson learned
• Do as much as you can today. Tomorrow is often much more difficult!!