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!!