LEOPARD received here in Brazil 
during its second flight over my QTH (The first was at low elevation to the east… Location with many buildings here)
Edit :
Good sign that what I believe to be CoRAL was received here in 401.14… so far I’ve checked 2 packets and both were demodulated.
CoRAL (AX100) 9k6
09:58:08
[priority:2 src:1 src_port:61 dest:9 dest_port:8 len:124 FEC_err:0 RS_err:0]
82 92 3D 00 80 0E 00 A1 69 83 18 31 00 40 0F 27 0F 3F 00 A7 02 D3 07 13 13 12 12 10 10 01 72 00 8D 20 74 00 00 00 00 04 00 07 00 00 00 02 00 01 13 00 00 09 E7 00 00 00 6D FF 84 04 CB 01 C6 02 DE FF FF FF FF FF FF 00 00 B2 13 FF D7 03 38 FC 87 39 64 F9 FE F3 D5 10 11 18 18 00 CE 01 E9 00 67 00 25 80 04 00 00 00 00 00 0F 00 00 00 00 00 00 00 00 00 00 00 00 00 38 89 B5 2D
09:58:53
[priority:2 src:1 src_port:37 dest:9 dest_port:8 len:124 FEC_err:0 RS_err:0]
82 92 25 00 80 0E 01 00 69 83 18 5E 00 49 10 C5 10 6D 01 EB 00 93 07 13 13 12 12 10 10 01 1A 00 8D 20 74 00 00 00 00 04 00 07 00 00 00 02 00 01 13 00 00 09 E8 00 00 00 6D FF 83 04 CB 01 C6 02 DE FF FF FF FF FF FF 00 00 B2 14 00 99 FC 7E FC AF 36 16 0A 9D F0 FA 0F 11 1C 16 02 4C 00 80 00 3B 00 0C 80 04 00 00 00 00 00 0F 00 00 00 00 00 00 00 00 00 00 00 00 00 65 46 88 63
09:59:38
[priority:2 src:1 src_port:46 dest:9 dest_port:8 len:124 FEC_err:0 RS_err:0]
82 92 2E 00 80 0E 01 5F 69 83 18 8B 00 41 10 CE 11 82 00 30 01 C2 07 13 13 12 12 10 10 00 E4 00 8D 20 6B 00 00 00 00 02 00 07 00 00 00 02 00 01 14 00 00 09 E9 00 00 00 6D FF 85 04 CB 01 C6 02 DE FF FF FF FF FF FF 00 00 B2 14 FA 94 FF 27 FC FA 49 9E 07 F6 FE 26 11 10 1C 16 00 3C 01 2D 01 05 00 00 80 04 00 00 00 00 00 0F 00 00 00 00 00 00 00 00 00 00 00 00 00 B5 23 72 9A
LEOPARD
2026-02-04 10:01:30 UTC
kyutech leopard 06fe12f..fde
Beacon type 2
Gyro X axis: -6 °/s
Gyro Y axis: -1 °/s
Gyro Z axis: -18 °/s
Time after reset: 23 h
(from spreadsheet)
The software seems to deliver slightly different values than the spreadsheet.
Gxiba-1 (AX100) 9k6
11:35:42
[priority:0 src:30 src_port:14 dest:8 dest_port:42 len:208 FEC_err:0 RS_err:15]
3C 8A 8E C0 F2 79 04 CC FD 16 BC 82 D2 C7 27 AB 2A B9 10 B4 1D C5 C7 57 68 71 D1 B4 DC 86 D4 BD 4C 9C A3 80 60 3A 86 79 05 58 EC 5B 4F 6E 2A 9C 2E 2E AF 98 21 45 7D 7C 0F 20 E2 10 28 9B C0 63 26 DF AE FD FB 35 21 F2 38 B2 4E B6 9F 9F F3 77 AF 1E 54 46 E2 C9 70 F8 28 81 DF E1 D7 F6 83 48 83 01 47 44 64 38 F1 CD 54 64 BF 6D C0 BA 24 73 26 BB EE 20 81 15 F9 B1 20 87 8C 05 26 6F 55 CD A7 80 EC B7 20 D7 0B C8 E2 C9 3A DA 7B 74 6C E5 A9 4B F3 8B 61 15 F3 E0 A1 0F 18 89 4C DE AB 1F E9 01 D8 13 41 AE 17 91 C5 92 75 B4 F6 E8 D9 CB 52 EF B9 86 54 57 E7 C1 42 1E 31 12 99 BD 56 3F D2 03 B0 26 83 5C 2F 23 8B 24 EB 69 FD 52 70 73
11:37:41
[priority:0 src:30 src_port:14 dest:8 dest_port:42 len:208 FEC_err:0 RS_err:15]
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
.
.
.
UiTMSAT-2
11:3x - 11:4x no signal
Managed to decode LEOPARD CW beacon partially from this observation.
Looks like there is a much stronger signal at TCA but probably the TLE is way off so the CW is not heard unfortunately.
LEOPARD
2026-02-04 13:11:36 UTC
kyutech leopard d78da0622106 (type 1)
The CPLD Temp is 11.3 °C according to the spreadsheet and the order of the solar panel flags are different.
Updated TLE set for GXIBA-1
GXIBA-1
1 98531U 26035.55274873 .00000000 00000-0 21510-3 0 08
2 98531 51.6308 236.1157 0011016 59.0626 49.2205 15.49188299 01
gxiba_035_v1.dat (735 Bytes)
sites.txt (12.5 KB)
Updated TLE for CoRAL:
CoRAL
1 98396U 26035.48758936 .00000000 00000-0 28788-3 0 00
2 98396 51.6308 235.8801 0011016 59.0626 45.7018 15.49090966 08
NOTE: It seems that there is another kind of transmission in the last observations that is less wide than the 9k6, looks like 1k2 or 2k4.
Updated TLE for Leopard:
LEOPARD
1 98397U 26035.67613302 .00000000 00000-0 23077-3 0 05
2 98397 51.6308 235.3841 0011016 59.0626 17.2004 15.49187163 03
sites.txt (12.5 KB)
leopard_035_v1.dat (1.4 KB)
Updated TLE for KNACKSAT-2 (not received yet) based on CoRAL generated TLE:
KNACKSAT-2
1 98532U 26035.48758936 .00000000 00000-0 28788-3 0 02
2 98532 51.6308 235.8801 0011016 59.0626 45.7018 15.49090966 00
and for UiTMSAT-2 (not received yet) based on Leopard generated TLE:
UiTMSAT-2
1 98398U 26035.67613302 .00000000 00000-0 23077-3 0 06
2 98398 51.6308 235.3841 0011016 59.0626 17.2004 15.49187163 04
CoRAL, LEOPARD and GXIBA-1 are well received by SatNOGS stations.
No signal from KNACKSAT-2 and UiTMSAT-2. For those vetting those two satellites, have in mind that other satellites at the same frequency are visible in their observations, for example BOTAN satellite shows up several times in UiTMSAT-2 observations.
TLE sets above are still good but may need some small fixes, I’ll check and generate new ones tomorrow if there isn’t any published by space-track.org.
Now with the 15 dBi antenna I received GXIBA-1 with 30 dB SNR, but it doesn’t demodulate in FSK AX100 mode 5, neither at 4k8 nor 9k6… ??? What’s wrong?
Hello! Can you share an audio or I/Q recording?
Thanks!
Certainly appears to be 9k6 baud, but I’m not decoding either. I guess you saw that the left side of the waveform was distorted a bit… I’m not sure if that’s enough to bother things or not.
Hola Roland,
Lots of trial and error to decode even a few GXIBA-1 frames here, as signals RX were weak. But, had recorded an IQ file using GNURadio. Looked for and exported the strongest frames using Inspectrum. Then, converted the IQ snippet to a wav file format using SOX. Under Windows, replayed that snippet (IQ) wav format file in SDR Console. FM wide demodulation. By carefully adjusting the frequency and bandwidth, got decodes using UZ7HO 1KUNS (AX100 Mode 5) soundmodem. See https://x.com/n6rfm/status/2019588630906564869?s=20
Good Hunting,
Bob
N6RFM
