The UBSEDS18 balloon was built from 50 micron thick PA-EVOH-PE multilayer film and was 1.5 meters in diameter. The payload weight was 18 grams, and the free lift was 15.4 grams. The balloon was pre-stretched more than previous flights.

The flight initially floated at 13.1km altitude (43,000 ft).



Tracker

The tracker was built using a leftover PCB from UBSEDS10 and 11. It is mostly powered from solar panels, so it only operates during daylight hours.

As well as two solar panels, the tracker also has a LIC1235R 40F li-ion supercapacitor. The tracker isn’t particularly power efficient, so this supercapacitor only provides about an extra hour of runtime in the evening.

Transmissions

The balloon transmits approximately once per minute.

UHF 434.6MHz

It uses the error-correcting Contestia 16/1000 mode on 434.612.5MHz USB.

Some countries do not allow UHF ISM band operation. Therefore UHF is only transmitted outside the red lines on the geofence below.

APRS M0SBU-12 / AD6AM-12

For many countries the balloon transmits APRS packets on local frequencies. In particular this is 144.8MHz in Europe, 144.66MHz in Japan and 144.39MHz in North America. The output power for this mode was measured at +14dBm.

Some countries do not allow aeronautical mobile operation, which limits the balloon from using the amateur bands. Therefore APRS is only transmitted outside the red lines on the geofence below.

Map

Statistics

Plots

Resources

Listeners

Thank you to all listeners who tracked this flight!

Total: 623

Callsign Telemetry Lines Received Longest Path
G8KNN gb 1298 354.2km
G0WXI gb 1240 350.0km
G6GZH gb 1212 321.7km
G8FJG_v gb 972 433.0km
PE1ANS 770 519.1km
BACKLOG 722
M0UPU gb 609 242.7km
0x17 gb 601 518.4km
G8IMN gb 574 148.0km
M0JCU gb 546 387.6km
F1OIL fr 481 390.7km
PE2BZ nl 481 449.1km
UT3BW ua 430 362.9km
G4ERR gb 389 178.3km
SQ3MQD pl 368 1120.2km
KB7FSC-1 352
RA4FHE-1 335
VE4GLS 311
WEBER 287
SP3MCY pl 278 215.3km
VO2WL 235
VE2GQF-2 229
MB7UVU 225
UR5FSV ua 220 428.1km
US9IGY ua 218 183.0km
K6SJC-1 218
UY0LL ua 205 494.2km
GI7UGV gb 204 324.8km
g0nzo gb 190 224.5km
PB0AHX nl 180 452.1km
VE2RIN-10 180
G4AIU gb 168 312.9km
VA6RG-10 166
VE1LV-2 161
UY0LL-1 157
VE7OGO-1 151
G7SVI gb 151 254.2km
YM7KK 147
KC0MKS-1 147
VE7SST-9 146
VE5HFR 137
UR3UT-2 136
AK7ME 135
VE6EAW 134
UD6L-1 131
UR4LRH-2 130
VE9DKS-10 129
MILTAN 128
ur4lrh ua 126 347.3km
F5PHW-3 125
VA7WS-1 123
M1BXF (Remote RX at home while in QRL) gb 123 204.2km
G1BLO gb 122 197.3km
VE7RYF-10 121
ROS 120
MB7UMC 119
PIGEON 119
EUGENE 116
VE2DMA-3 115
VE7RHD-10 108
UT2XQ-1 104
VE7RLE 103
VA2CMQ-3 102
NW7RG-1 98
STUKEL 98
WB7FHC-3 96
N0MEQ 94
G8OTE gb 90 62.2km
ut5erp 88
LAMONT 86
VA7HXD 85
M0SBU gb 84 7.5km
VA7LKC-10 84
K6MLA-10 82
KE6SLS 81
MB7UXX 81
SP1TMN pl 80 391.7km
G8DHE-1 gb 79 243.9km
ED1ZAR-3 78
UT4UKA-1 78
9H1XE-1 78
KK7JX-10 78
VE6CWS 75
W7BOZ 75
YM9KM 72
SP6RYD pl 71 143.2km
KI6TFI-1 70
N6VUD 69
W0FX 68
RV1CJ-12 67
9H1US-5 67
JM8CGZ 66
KC0MWM 66
TA3CY 66
N0RNB-5 66
BD2OS-10 65
YO8DHA-10 64
VE6RFM-1 63
UR5FSV-2 62
YM2KA 59
K9JWM 59
G4YHE gb 59 198.8km
VE1WN 58
DRMT39 58
VE7QMR-2 58
VE4DPR 58
KC0ISW 58
VA7ZAT-2 57
EA1WS 57
KB7STN-3 57
YM7KA 57
NW7RG-10 56
TOK 55
2RIVRS 54
K7OZD 54
VE2USL-1 54
N7TAU-1 54
VE1AIC-2 54
JR8IVS-10 53
VO1AW 52
BG2UHK-10 51
UT2XQ 51
SP5ULN pl 49 410.3km
YM9KRS 49
AC0MJ-1 47
PA0RPA nl 46 377.8km
PE1BIA nl 44 338.8km
W7XY-10 44
VE9GM-10 43
LA2VSA-1 43
N7JYS-7 43
N7JYS-3 43
TA1CR 42
F5LHI 42
LA3LJA-10 42
F5LRQ-3 42
VE1NWC 41
JE8FXJ-10 40
K7KEZ 40
W6SCR 40
SV2HNH-1 40
W0KGW-10 39
VE5BBZ-1 39
DB0ZEH 38
TA1DX-3 38
VE3BVC 37
YO4RDJ-10 37
BALLPT 36
KD0OXW-10 36
VE1GX-1 36
UA6HJQ-10 36
Tom de 35 416.5km
Zaltbommel nl 35 411.0km
EI5HBB 35
KB1CHU 35
F5RGH-10 35
TA1AFT 34
VE6XVK-1 33
G1BRB-1 33
W0PHX-1 33
KC0TAF 32
W0ARP 32
W1TG-1 32
VA6KRK-10 32
LA7LKA-10 32
VE1GV 32
VA1ALW 32
MB7UZE 32
VA7DWC-1 31
RW3DKE-1 31
OK1LOL-1 30
WA9TT-10 30
SP8CGR pl 29 349.2km
KD1KE 29
KD0EZQ-7 29
KB7DZR-10 29
K9VD 28
VE9SC-10 28
EB3EHJ-10 27
YM6MER 27
KB1MOV 27
N7OKG-1 27
VE6RBN-1 27
PE1OYS-2 27
VA3HSP-1 27
KI0AU-1 27
VE7WGN 26
UR4LRH-7 26
AA0HJ 26
VE2PCQ-3 26
US5ERV 25
KE7UQK-1 25
N0KFB 25
CU6NS 25
SV2HRT-6 24
MB7VB 24
AD7DQ-10 24
VE3TYZ-1 24
WN8Z-4 24
AUBURN 23
KC7OOY 23
RW6HP-10 23
N7JYS-4 23
KG7JQP 22
YM9KK 22
OM3WOR 22
KG7AV-4 22
LB2OG-10 22
DB0HDF 22
DB0FFL-10 21
BG2KCG-10 21
VE3PHC-10 21
VA3EOD 20
VE7CHW 20
DB0XIT 20
MB7UEI 20
KE8CPN 20
F3KT-4 20
KD0SFY 20
VE2ZDK-1 19
LZ0BGN 19
VE2MYC 19
IR0DA 19
VE3VBA-1 18
KB1TSO 18
LZ0DAD 18
MB7UAH 17
K6QXY-7 17
YO6IOG-10 17
UR0UDS-1 17
KA0NWV 17
DB0OSN 17
WA7FFM-1 17
MB7UTG 16
G4HDS 16
M1BXF-SDR gb 16 216.8km
IS0CAP 16
VE3JJA 16
AF7HG-1 16
HUMBOL 16
TA2AWO 16
DO0ASW 16
KB8ZXE-2 16
VA3PC-5 15
DB0RIE 15
G6GZH-1 15
N0QVC-1 15
KQ1L 15
SP2GG-4 15
DB0MM 14
DM0FFL-10 14
K2ZRO-1 14
N0VKI 14
W0NE-1 14
W7BEQ-2 14
VA2RMG 14
VE7MKF-1 14
OE3REC-11 14
DO9JM-13 14
K7UHP-1 14
LX0APS-2 14
KI8KR-10 14
KD7GIZ-10 14
OE5REO-10 13
M1BXF-910 gb 13 216.8km
VE6ARC-9 13
F6KSO 13
W7QQA-2 13
WINTHP 13
MONDAM 13
DL5ARG de 13 156.3km
DG2RBF-10 13
F4ETJ-1 13
KD0YUJ 13
KE7SNH 13
VA6KRM-10 13
SV2HNC-2 13
DO7HS-10 12
W7HR-1 12
KC2WBX 12
M6DRS 12
N3LLO-2 12
TA4AZT-10 12
VE2RTO-3 11
OK1KID 11
TA7K 11
UT3XT-1 11
K7YI-4 11
VE3FYN-1 11
YO4ISC-10 11
SP3KWA-5 11
PE1CME nl 11 416.0km
F6DZR-3 11
UB3AAZ-3 11
WA8ZWJ-2 10
VE6EN-1 10
LZ3SV 10
KC0U-1 10
EB3TC-5 10
VE2SE-3 10
SV1BGM-1 10
VE7FAA 10
CALGRY 10
W7MB-10 10
VE7PKE 9
N0AGI-1 9
BG2YF 9
F5ZIX-4 9
KE0ESG 9
LA2YMA-2 9
VA3ROM-10 9
N0AN-1 9
DM2HB 9
PB0AHX-websdr nl 9 486.1km
VE9CRM-10 9
KC1BUR-5 8
LX0WX-13 8
KC0GP-3 8
VA3YCM 8
KB6RKS 8
VA2RVO-3 8
S59DTB-10 8
MM3LSO 8
DB0SWR-10 8
N3LLO-3 8
DM0ESS 8
DB0DOS-10 8
LZ0DAP-13 7
KB1NYT 7
OE3MZC-2 7
N6VUD-2 7
PROSSR 7
SWL72 fr 7 470.8km
N7GWT 7
DL5NAM-10 7
VE7GDH 7
N0AGX-12 7
YM7KO 7
MB7UCW 7
ED2ZAD-5 7
LA6MNA-1 7
WLTRVL 6
JR7YOW-10 6
KG0AL 6
PA3EKI-10 6
KQ6DI-3 6
VA2DQ-10 6
OH5XB 6
AE0TB-6 6
KITTAS 6
SP7PZS-2 6
G8YLX 6
VE2RUH-3 6
GLNVW-1 6
SUNSET 6
DO1AA-10 5
SR3NDG 5
IQ9PA-12 5
N7YET 5
W6BML-1 5
VA6GA-10 5
W7EWG 5
CEDAR 5
VE6FRC 5
SQ5AAG-TS pl 5 388.3km
OK1KZE-1 5
VE3UIL-14 5
OK0BCA-1 5
DB5RRH-10 5
N1FCC-2 5
VE7NEK 5
LD8NK 5
SR3NPB 5
DB0ZWI-10 5
DB0NOS 5
N3LLO-4 5
KO6TH 5
VE5BNC-3 5
OK1RPL 5
RZ3DHN-1 5
KC0HH 5
DL8RDL-10 5
WA6KHG 5
BY1CRA-10 5
W7DEM-6 5
KA2FNK 5
KF7ZTB-2 5
ABAJO 5
KB0GTF-1 4
UH9OAM 4
VA3JTR 4
N1QKP-15 4
VE6GG-1 4
DG1SFJ-10 4
K7MT 4
F1ZGE-3 4
DL9OBM-10 4
KB6YTD 4
F6FQI-2 4
JF7HQY-10 4
KA7O-15 4
DB0RNG 4
MB7UDY 4
TA1AST 4
K7CTM-1 4
DB0HFT-10 4
AE5E-7 4
KE0EJS-1 4
OE2XGR-10 4
EA3GKP-12 4
DD3TF-5 4
F2VI 4
K0FJ-8 4
OK9TVR-1 4
K9UDX 4
DG3YJB 4
F4GCF-13 4
N9XH-4 4
N1AFK-13 3
VY1XY-1 3
SZ4KRD 3
N2KI-10 3
IR5X 3
SUNLGT 3
OE5HPM-10 3
VE6HFD 3
DB0RVB-10 3
SP5MG pl 3 397.4km
VE3CEA-10 3
SQ9CIE-4 3
DB5WY-13 3
VE7VMH 3
ED1YAP-3 3
DB0PAS-10 3
RevSpace nl 3 320.8km
SA3PJN-2 3
OK5TVR-10 3
VE7OTD 3
WB2ZII-15 3
SV3AQO-10 3
EA3GKP-11 3
TA1ICU 3
VE7ORA 3
KB8ZXE-1 3
W7IG 3
OE7XKH-10 3
VE2DBE-2 3
AD7UI 3
OE5ERN-10 3
DB0WOA-10 3
DJ9ZZZ-10 3
BASHOR 3
KC0FOW 3
VE3TSA 3
W2KB-15 3
DH2IW-10 3
KD8GBH-1 2
DB0NLH 2
F1PYN-13 2
SHEEP 2
VE7ZIO-10 2
KG6UWN-1 2
HOGBAK 2
KK6ZL-10 2
VA3EOA 2
F6KCI 2
W1OEM 2
GM8HBY 2
DL8KZ 2
W7GC-3 2
LA2T 2
KA7OWO-5 2
K6NOX-11 2
BALDI 2
VO1UM-1 2
AB1OC-10 2
VE6KEE 2
DD3UTS-4 2
F4DYK 2
VE7CUS-1 2
DB0MAK 2
VE2WMG 2
VE7ILM-10 2
WB7GR-10 2
KC0OOO-10 2
KD9FUR 2
VE7DID 2
BIRKEN 2
W8DR 2
DM0ET-10 2
BG1TXB-10 2
LZ0BGM 2
F1ZIA 2
VA3APW-1 2
ED3YAI-1 2
DG1JLA-3 2
SP7RB-10 2
DB0KH 2
EA6VQ-15 2
KB1YTR 2
N3LLO-1 2
OE1SSU-10 2
KD0GQX-10 2
IR2Y 2
IR2S 2
VE2ONR-10 2
N1RCW-2 2
JF7AMK 2
AE7TO-1 2
DB0FHO-3 2
W9ABA-4 2
DL2BWO-13 2
BOB 2
W0YC-5 2
DK3AP-10 2
W9ZBD 2
BD4KM-10 2
SR9NKO 2
N0NB-10 2
SV6EXB-11 2
VE1MPF 2
ON0LB-10 2
KE0BIU 2
KJ6LEO 2
GERLCH 2
DB0OAL 2
VE7RXD-9 2
SM2VTS-1 1
NG7M-1 1
IK1NET-13 1
F6DAA-12 1
WB7QAZ-10 1
IR0AAI-12 1
DG4NGM-10 1
K0JSC-1 1
SR3NRI 1
N3TJJ-13 1
DB0MHB-1 1
IR4BA 1
KB0BDN-10 1
OV7B-1 1
VE4DDW 1
N0NHB-2 1
KG7WPQ 1
OE6XLR-11 1
W0NH-2 1
PI1SGM-2 1
IR2UFW 1
K6ETA-7 1
UA1CCB-5 1
K2MST-1 1
KB9YVN 1
NX1W 1
PA3HV 1
RDMTN 1
OK0BAF-1 1
F5OPV-10 1
N2KGC 1
SA3ATF-1 1
DG3VU-10 1
MB7USD 1
KC2WBX-3 1
IK5ZUN 1
K6KUS-1 1
NS1RA-2 1
F5ZHS-4 1
F8PKP-10 1
ON7KEI-10 1
DO2JMG 1
OZ6REC-1 1
WL7CLI 1
WA0MFZ-5 1
K7KCA-1 1
S55YZA-11 1
N0EB 1
LB2KE 1
F8EBY-2 1
F1ZXR-3 1
WD4IXD-10 1
VE7ZKI-10 1
KJ6ART 1
OK2KOJ-1 1
W1RVY-5 1
JH7JDC 1
PI1APV-2 1
SQ6ODL-1 1
K0XK-5 1
JA7LJQ-10 1
GWS 1
LA6TPA 1
WA5ZNU-10 1
DC4ZZ 1
HG1PNY-1 1
IR5AO-3 1
LA4YKA-10 1
LZ0DAO 1
KC6SSM-5 1
VA7OBD 1
KA1PXZ-1 1
DC4AT 1
PI1UTR-10 1
VE2SIL 1
AF7DX 1
DJ8KL-10 1
IR2CV 1
VA7QC 1
WB7FHC 1
JR8YJC-13 1
OE3ELG 1
DM0AI-10 1
F5ZZ-3 1
BG3MUF-10 1
MB7UCC 1
KD7HGS 1
HOLLY 1
OE5OMP-10 1
DE1TBK-10 1
OE5EBO-10 1
DK1SR 1
IR2UBX-11 1
NX0P 1
F4GCF-4 1
ED2ZAE-5 1