Analysing unknown Satellites

Satellites & Observations
1

Going over the SatNOGS database and the unknown objects.

So I have been trying to decode the frames and possibly find some identification, I am not 100% sure about the examples below regarding the identifications.

A couple of examples:

Norad ID: 69101

name: TAIJING-3-05B
norad: 69101
data:
  &tlm Telemetry:
    unknown
transmitters:
  9k6 FSK downlink:
    frequency: 401.500e+6
    modulation: FSK
    baudrate: 9600
    deviation: 4800
    framing: CCSDS Reed-Solomon
    RS basis: dual
    RS interleaving: 1
    scrambler: CCSDS
    data:
    - *tlm

***** VERBOSE PDU DEBUG PRINT ******
((transmitter . 9k6 FSK downlink) (rs_errors . 11))
pdu length =        223 bytes
pdu vector contents = 
0000: 5f 41 0b a8 c1 00 00 7c 00 b6 93 76 32 00 4a 00 
0010: 07 00 07 00 00 00 00 00 00 00 00 00 00 00 00 0c 
0020: 94 00 00 00 00 00 00 0c ae 00 00 00 01 00 ff 00 
0030: 06 00 07 0a 51 18 bc 29 39 39 e4 48 b7 59 7c 60 
0040: 06 74 c6 83 83 94 e9 a4 ee b4 e8 c9 fb d9 97 e9 
0050: 35 f0 0e 04 41 00 00 00 00 05 06 e1 dd 00 40 00 
0060: 0c d9 0f 74 00 00 83 00 00 00 00 00 00 00 00 00 
0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a7 
0080: 00 82 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0090: 00 00 00 00 00 00 00 00 00 00 be 00 00 5b 21 00 
00a0: 04 01 c3 f6 00 17 0c 96 00 31 00 00 68 03 20 8e 
00b0: 00 00 00 0c 00 43 7f 00 77 00 17 00 0c 12 04 06 
00c0: c3 fa 00 53 08 01 4f 80 00 01 1d f4 80 00 03 97 
00d0: 80 00 03 10 00 00 00 40 08 05 a4 90 84 2a a5 
************************************
***** VERBOSE PDU DEBUG PRINT ******
((transmitter . 9k6 FSK downlink) (rs_errors . 11))
pdu length =        223 bytes
pdu vector contents = 
0000: 5f 41 0b a8 c2 00 00 62 02 b6 93 76 32 00 3c 08 
0010: 05 a2 10 08 01 4f 90 a5 a5 a5 a5 a5 a5 a5 a5 a5 
0020: a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 
0030: a5 a5 a5 a5 a5 a5 a5 00 00 60 1f 00 01 27 64 00 
0040: 00 04 09 08 05 a2 50 00 02 f0 b0 03 07 de 00 00 
0050: 65 08 ae 00 00 0c 60 01 5a 00 08 05 50 01 5a 04 
0060: 47 00 ed 07 32 04 d3 00 02 00 09 00 09 00 0c 00 
0070: 0f 00 08 00 05 00 09 08 14 08 16 00 00 00 0d 00 
0080: 06 00 2b 00 07 00 06 00 06 00 d1 00 06 00 07 00 
0090: 00 00 01 00 07 00 00 00 48 00 07 00 09 06 0b 00 
00a0: 00 00 00 06 09 02 44 05 6a 08 9e 08 a1 08 ab 0f 
00b0: 63 0f 61 00 0c 00 6a 03 08 de 00 00 65 00 01 00 
00c0: 00 00 00 00 00 00 00 05 68 00 03 02 7a 02 62 05 
00d0: 75 02 47 00 01 00 07 00 07 00 06 00 76 4b 09 
************************************

Norad ID: 59918

name: JIGUANG-XINGZUO-2
norad: 59918
data:
  &tlm Telemetry:
    unknown
transmitters:
  9k6 FSK downlink:
    frequency: 401.250e+6
    modulation: FSK
    baudrate: 9600
    deviation: 4800
    framing: CCSDS Reed-Solomon
    frame size: 223
    RS basis: dual
    RS interleaving: 1
    scrambler: CCSDS
    syncword threshold: 6
    data:
    - *tlm

***** VERBOSE PDU DEBUG PRINT ******
((transmitter . 9k6 FSK downlink) (rs_errors . 15))
pdu length =        223 bytes
pdu vector contents = 
0000: 7d 01 ae b4 2b 00 00 4b 02 1f 15 ea 30 00 16 00 
0010: 02 00 00 00 00 00 00 00 00 00 00 6e 4c 00 00 00 
0020: 00 00 00 00 00 05 04 f7 4d 00 77 70 e0 46 d2 4e 
0030: 39 67 26 24 12 85 32 00 a5 24 15 85 33 00 aa 08 
0040: 13 00 aa fb 27 08 13 00 aa fb 27 fe b8 fe 7c 00 
0050: 00 00 00 00 00 12 00 00 00 00 00 00 00 00 00 77 
0060: 00 02 1e 00 55 00 02 00 22 41 33 11 eb ff 04 00 
0070: dc 2b 08 38 ff c0 cc cf cc cf cc cf 00 03 00 00 
0080: 00 00 00 00 00 00 00 01 02 00 00 00 00 00 00 70 
0090: 8b 49 c2 01 0e 00 00 00 00 00 02 1b 66 00 00 01 
00a0: 00 01 01 03 07 dc 35 00 65 08 ac 00 00 0c 50 01 
00b0: 9f 00 08 06 0e 01 9f 06 c1 00 f6 07 2f 06 bb 00 
00c0: 11 00 01 00 0e 00 0b 00 02 00 04 00 0a 00 07 06 
00d0: cb 07 4c 00 00 00 03 00 00 00 00 00 09 d4 a5 
************************************
***** VERBOSE PDU DEBUG PRINT ******
((transmitter . 9k6 FSK downlink) (rs_errors . 15))
pdu length =        223 bytes
pdu vector contents = 
0000: 7d 01 ae b4 2c 00 00 48 00 20 15 ea 30 00 33 00 
0010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 
0020: 00 00 00 81 00 00 00 00 05 d5 00 0d 00 00 05 da 
0030: 02 44 00 00 08 ab 08 aa 00 00 0d 0b 0e 79 00 7f 
0040: 00 9f 03 08 dc 3d 00 65 00 00 00 00 01 72 00 00 
0050: 00 01 00 00 00 02 02 47 05 70 00 0e 00 07 00 00 
0060: 00 00 00 00 00 00 00 6c 00 00 00 00 0c 8c 00 05 
0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0080: 00 00 00 00 00 00 00 00 07 15 16 16 26 1c 36 0f 
0090: 46 29 55 b2 66 0c 76 f9 83 85 94 ac a4 ba b4 b2 
00a0: c7 d0 d7 d3 e6 f0 f7 4b 38 50 0f 00 00 00 03 03 
00b0: dc 3b 00 4c 00 01 00 00 00 00 00 00 00 00 00 00 
00c0: 00 00 00 00 00 00 00 00 00 00 08 37 00 00 00 00 
00d0: 00 3f 06 ba 00 41 00 04 09 db 0a 68 89 c5 09 
************************************

Norad ID: 60745

name: YUNYAO-1-15
norad: 60745
data:
  &tlm Telemetry:
    unknown
transmitters:
  9k6 FSK Reed-Solomon downlink:
    frequency: 400.055e+6
    modulation: FSK
    baudrate: 9600
    deviation: 4800
    framing: CCSDS Reed-Solomon
    RS basis: dual
    RS interleaving: 1
    scrambler: CCSDS
    data:
    - *tlm

***** VERBOSE PDU DEBUG PRINT ******
((transmitter . 9k6 FSK Reed-Solomon downlink) (rs_errors . 9))
pdu length =        223 bytes
pdu vector contents = 
0000: 5b 41 1a 76 9f 00 00 03 00 9a 6f 7d 32 00 06 00 
0010: 00 00 00 00 00 05 03 c5 19 00 a5 32 7d 6f 99 8a 
0020: de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0070: 00 00 00 00 00 00 00 00 00 00 00 bf 2f 19 04 bf 
0080: ba 86 ea 3f ec 09 ec 00 00 00 00 00 00 00 00 00 
0090: 00 00 00 00 00 00 00 01 f4 00 18 00 00 00 00 00 
00a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
00b0: 00 00 00 00 00 00 00 00 ff c4 30 00 00 00 00 5c 
00c0: de 04 01 c5 19 00 1b 00 c8 00 55 00 a8 88 12 30 
00d0: cc 00 00 00 00 00 0b 00 00 77 00 00 71 17 a5 
************************************
***** VERBOSE PDU DEBUG PRINT ******
((transmitter . 9k6 FSK Reed-Solomon downlink) (rs_errors . 8))
pdu length =        223 bytes
pdu vector contents = 
0000: 5b 41 1a 76 a0 00 00 04 00 a4 6f 7d 32 00 07 00 
0010: a4 10 00 00 00 3a 03 05 c5 36 00 65 08 7b 00 00 
0020: 0c 11 06 7d 0c 0e 06 80 06 23 06 ca 00 d5 07 97 
0030: 06 d0 00 13 00 09 00 01 00 08 06 2c 02 06 01 07 
0040: 05 3d 00 00 06 e7 07 77 00 96 00 00 00 00 00 00 
0050: 00 00 00 00 00 00 00 00 00 00 0c 4b 08 88 08 35 
0060: 08 27 00 33 00 17 00 01 05 dc 05 54 05 60 06 0c 
0070: 02 3e 05 6c 00 00 08 78 00 00 0d 71 0e cd 06 7c 
0080: 04 29 05 06 c0 00 00 5e 1b 1b 00 00 01 00 00 00 
0090: 01 00 00 14 8e 08 00 00 12 82 dd 2e 00 6c 72 e7 
00a0: 00 7d 03 06 03 f6 f2 08 00 0b ab da ff fe 64 33 
00b0: ff fe f5 eb ff ff ff f9 ff ff ef f9 67 00 f8 00 
00c0: 00 00 6c 72 e7 00 7d 03 06 03 f6 f2 08 00 0b ab 
00d0: da ff fe 64 33 ff fe f5 eb ff ff ff c7 62 09 
************************************

If others have more information please share it in this topic.

Jan | PE0SAT

4 Likes
2

Jan,

Thanks sharing these yml’s and results! What’s the basis for the preliminary name ID’s?

73,

Bob

1 Like
3

Hi Bob,

The preliminary ID’s are based on the cospar id from the TLE to narrow down the objects that belong to the launch and then exclude the objects that are known.

Jan | PE0SAT

4

Thanks Jan!

/b