The UBSEDS20 balloon was built from 50 micron thick PA-EVOH-PE multilayer film and was 1.9 meters in diameter. This is 0.4m more than the usual 1.5m diameter. The larger size meant the longest axis of the balloon and payload combined was more than 2 meters, and so a NOTAM was required and obtained for the launch.

The balloon carried two payloads. UBSEDS19 was the backup tracker (mass 13 grams), and UBSEDS20 was the main Raspberry Pi Zero payload (mass 62 grams). The free lift was about 25 grams.

The initial float altiude was 12.5km. The total payload weight was of 75 grams.



Tracker

This was the first test of our pico-pi board.

Backup Tracker

The UBSEDS19 backup tracker was powered from a single AAA Lithium Energiser battery. It transmitted Contestia 16/1000 with pips and RSID on 434.615 MHz USB, once per minute below 8km altitude and every two minutes otherwise.

The board is the same design as UBSEDS13 and UBSEDS14 - except configured for a faster update rate and using a AAA battery.

Images

The Raspbery Pi Camera (Sony IMX219) captured images of the envelope during flight.


Envelope

Annotated image of envelope

Map

A map of the images taken by this flight can be found HERE!

Statistics

  • Total distance traveled: 6421.6km
  • Great circle distance: 4140.8km
  • Flight duration: 4 days, 6 hours
  • Maximum altitude: 12.9km
  • Countries passed through: gb fr at hu at si hu ro md ua ru

Plots

Resources

Listeners

Thank you to all listeners who tracked this flight!

Total: 143

Callsign Telemetry Lines Received Longest Path
G0WXI gb 857 420.2km
G8KNN gb 844 433.2km
PE2BZ nl 835 391.1km
PB0AHX nl 833 410.4km
PA3CWQ nl 771 377.3km
F1OIL fr 766 302.3km
ON5LT be 765 327.0km
PE1ANS 737 307.9km
PE2G nl 606 463.7km
G8FJG 565
G6GZH gb 554 432.7km
BACKLOG 536
PA0RPA nl 499 280.9km
0x17 gb 469 401.3km
M0DNY/WEBSDR gb 452 462.2km
G8ZBJ gb 438 415.1km
G1DYQ gb 410 365.7km
G4DJB gb 367 389.0km
G0HWW gb 358 372.6km
F21061 fr 348 313.8km
G8DHE-ubs20 gb 339 200.5km
G4YHE gb 299 225.6km
G8FJG_v gb 296 438.1km
PD5TON nl 287 277.7km
M0UPU gb 267 437.0km
M1ARI/3.2c gb 257 258.9km
G8DHE-2 gb 245 219.8km
YOOSHKY pl 244 485.6km
G6SUQ gb 243 356.1km
jijdaar nl 238 400.2km
M6DRS 224
G6SSN gb 196 393.4km
G0TDJ 193 280.9km
M0ZBU gb 190 246.8km
G8DXZ gb 179 292.4km
PE2BZhome 164
HA6NN hu 163 362.7km
G0IOZ 152
G8FJG.20 151
g0nzo gb 146 438.6km
M0SBU gb 138 159.1km
PE0SAT nl 133 274.4km
G8JNJ gb 106 399.5km
GOCXW 84 135.0km
pe1dh 79
OM5KV hu 79 318.6km
OK1JRA-1 76
PE1CME nl 73 377.8km
9A4DE hr 50 65.4km
S51WND-11 50
G1BLO gb 48 95.5km
IR4AZ 42
IV3GFJ-11 41
YOO pl 38 1157.3km
G7SVI gb 37 228.3km
HB9FUF ch 31 296.7km
DL5MAM 28
OE3REC-11 25
S59DTB-10 25
OK5TVR-1 24
HA5CD 21
IZ4UFQ-10 20
M1ARI/3.2r gb 20 102.3km
RevSpace nl 20 371.2km
RW6HP-10 19
S53XX-10 19
IZ3LSV-4 16
S52PIR-2 16
OE5ERN-10 16
M1ARI/3.1r gb 14 101.6km
S56IUL-11 13
OE5REO-10 12
DM0FFL-10 11
M0BPQ-1 10
IV3GCH 9
S57AJJ-10 9
IR3DV-10 8
G1UAF-10 8
DL2MEL-10 8
G4ERR gb 8 185.0km
SUWS gb 8 269.8km
DB0FFL-10 8
OE5EEP-10 7
F6DZR-3 7
M0SCJ 6 157.4km
9A1IW-10 6
G4ZLZ-1 6
S56JCH-11 6
OE3TRB-15 5
ON0LRG-2 5
IQ3UD 5
S55EI-10 5
YO4RDJ-10 5
F4DBS-10 5
OE3MZC-2 4
MB7UMS 4
OE3PAS-15 4
DL6FCD 4
IQ2CY 4
9A1Z 4
DB0PAS-10 4
OE3RNB-10 3
OK1LOL-1 3
Zaltbommel nl 3 336.2km
DO7HS-10 3
DG7DCG-10 3
IR3EO 3
DB0MM 2
YO4ISC-10 2
OK1KZE-1 2
OK2KOJ-1 2
9A1AYZ-10 2
UR5FSV-2 2
IK3ITI 2
S57D-6 2
HB9AK-5 2
HB9AK-2 2
F6KBS-3 1
G8DHE-ubseds gb 1 134.2km
S54F 1
IR2DD 1
DG2RBF-10 1
DG4MLA-10 1
F4GUK-10 1
OE5XDO-10 1
OM5AMX-1 1
HB9KOM-1 1
OK3MS 1
DB0MHB-1 1
IR3BT 1
UB9JBL-10 1
OE5EBO-10 1
S55MA-1 1
PD2ATG-10 1
IR2Y 1
OE3MNS-8 1
DB0FEU-1 1
OE6XAR-1 1
OE7TWI-10 1
DB0WGS-10 1
OE3XFW-10 1
S59ACP-10 1
F6GVH-1 1