Thanks, changed the name
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Thanks for sharing the data Bob, with the help of the file I could create the following gr-satellites yml file
name: DJIBOUTI-1A
norad: 99027
data:
&tlm Telemetry:
telemetry: ax25
transmitters:
1k2 FSK AX.25 downlink:
frequency: 401.800e+6
modulation: FSK
baudrate: 1200
framing: AX.25
data:
- *tlm
2k4 FSK AX.25 downlink:
frequency: 401.800e+6
modulation: FSK
baudrate: 2400
framing: AX.25
data:
- *tlm
4k8 FSK AX.25 downlink:
frequency: 401.800e+6
modulation: FSK
baudrate: 4800
framing: AX.25
data:
- *tlm
9k6 FSK AX.25 downlink:
frequency: 401.800e+6
modulation: FSK
baudrate: 9600
framing: AX.25
data:
- *tlm
And that created the following output:
-> Packet from 2k4 FSK downlink
Container:
header = Container:
addresses = ListContainer:
Container:
callsign = u'F4KJX' (total 5)
ssid = Container:
ch = True
ssid = 0
extension = False
Container:
callsign = u'DJIB1A' (total 6)
ssid = Container:
ch = True
ssid = 0
extension = True
control = 0x03
pid = 0xF0
info = b'\x8c\x10\xc2\xaeJ\\\xab\xaeJ\\\x00\x00\x01"\x98R\x00\x00\x01\x00\x01\x003\xc1\x05\xbd\xc1\xc1\x00`\xf3\x0f\x08:\x17N\x00\x00\xf8\xf6\xf6\xf8\xf6\xcdd\t\xd1\x83\xc6e\x00\x08\t\xcc\x116\x00\x11\x00\x00\xad\x02\x89{fx\x1f\x00\x00\x1e\x02\x01\xb8\x01\xb8\x7f\x04\xbf\x07\xfa\x01f\x00\x02\x02\x02\x07\x01(\xfe\xd4@\xe8\x06\xc1\xff\xd2\x00\x19\x00\t\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00DJIBOUTI-1A vous salue !' (total 142)
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Do you happen to have any information about JINJUSat-1?
According to SpaceX’s announcement, it seems that a total of 3 satellites were not deployed, and among them, 2 satellites appear to be those loaded onto the ISIS Deployer by Momentus [JINJUSat-1, Aman-1(STORK-7)].
How would you assess such a situation?
About all you can do is watch for any reports of a signal. (Or any further announcement from SpaceX)
Is 9k6 AX.25 BPSK-G3RUH on 435.185 MHz correct?
VERONIKA gr-satellites yml file:
name: VERONIKA
norad: 99052
data:
&tlm Telemetry:
telemetry: ax25
transmitters:
1k2 FSK AX.25 downlink:
frequency: 436.680e+6
modulation: FSK
baudrate: 1200
framing: AX.25 G3RUH
data:
- *tlm
2k4 FSK AX.25 downlink:
frequency: 436.680e+6
modulation: FSK
baudrate: 2400
framing: AX.25 G3RUH
data:
- *tlm
4k8 FSK AX.25 downlink:
frequency: 436.680e+6
modulation: FSK
baudrate: 4800
framing: AX.25 G3RUH
data:
- *tlm
9k6 FSK AX.25 downlink:
frequency: 436.680e+6
modulation: FSK
baudrate: 9600
framing: AX.25 G3RUH
data:
- *tlm
Decode output:
-> Packet from 9k6 FSK AX.25 downlink
Container:
header = Container:
addresses = ListContainer:
Container:
callsign = u'CQ' (total 2)
ssid = Container:
ch = False
ssid = 0
extension = False
Container:
callsign = u'OM9VER' (total 6)
ssid = Container:
ch = False
ssid = 0
extension = True
control = 0x03
pid = 0xF0
info = b'U,68845,68868,1,0,1152,1098,1031,0,,0,3760,94,0\x00' (total 48)
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SpaceX announcement stated “unable to confirm 4 of the 84 deployments” as they are small sats. I’m guessing they were deployed but there was no visual confirmation!
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99006 NINJASAT candidate fequency 402.000 MHz
99006_20231112_0712UTC.dat (168 Bytes)
site.txt (51 Bytes)
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Possible NINJASAT-1 telemetry decoding as Light1 frames.
9.9985 = 401.9985 MHz
2K4 LIGHT1 GMSK
LIGHT-1
Packet number 0
- MESSAGE DEBUG PRINT PDU VERBOSE *
()
pdu_length = 93
contents =
0000: 01 20 00 9a 86 02 00 83 45 3b 00 93 36 50 65 47
0010: 5d 00 00 04 00 00 00 00 00 00 0c f5 ff ff ff f6
0020: ff ff ff 8f ff ff ff 8f ff ff ff 85 ff ff ff 14
0030: 00 00 00 42 5d 00 00 9d e1 00 00 15 01 27 01 42
0040: 01 15 01 00 00 00 00 00 00 00 00 00 00 00 00 00
0050: 00 00 00 04 20 00 00 75 00 00 00 00 00
LIGHT-1
Packet number 1
- MESSAGE DEBUG PRINT PDU VERBOSE *
()
pdu_length = 93
contents =
0000: 01 20 00 9a 86 02 01 00 00 c1 00 00 00 00 00 00
0010: 00 00 00 00 00 00 00 02 00 02 00 02 00 21 00 00
0020: 00 f6 f6 f6 f5 f6 f6 f6 f6 f6 f8 f6 7f f8 f8 00
0030: 00 80 0c 06 00 00 00 2d 5d 00 00 05 00 00 00 00
0040: 80 77 3e 00 30 6d 3e 00 00 c0 7f 00 00 e8 c1 00
0050: 00 c0 7f 00 00 c0 c1 00 00 c0 7f 00 00
LIGHT-1
Packet number 2
- MESSAGE DEBUG PRINT PDU VERBOSE *
()
pdu_length = 91
contents =
0000: 01 20 00 9a 86 02 02 c0 7f fb 00 00 00 00 00 00
0010: 00 00 c0 7f 00 00 c0 7f 00 00 c0 7f 00 00 c0 7f
0020: 00 00 00 00 00 00 01 00 00 00 01 45 3c 41 40 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
Good hunting all
4 Likes
Possible PROTOMEETHE1 telemetry also decoding as Light 1 frames
9.0495 = 401.0495 MHz
LIGHT-1
Packet number 0
- MESSAGE DEBUG PRINT PDU VERBOSE *
()
pdu_length = 118
contents =
0000: 01 20 00 58 01 01 00 83 45 32 00 42 36 50 65 8f
0010: 55 00 00 10 00 00 00 00 00 00 0c 07 00 00 00 07
0020: 00 00 00 00 80 00 00 00 80 00 00 81 ff ff ff 00
0030: 00 00 00 08 00 00 00 03 37 81 2c 00 00 00 00 00
0040: 00 74 01 08 80 80 80 80 80 80 80 80 80 80 80 80
0050: 80 80 80 80 80 80 80 80 80 80 80 80 80 06 07 07
0060: 07 06 06 06 06 06 06 06 07 80 80 80 80 80 80 80
0070: 80 80 80 80 80 00
LIGHT-1
Packet number 1
- MESSAGE DEBUG PRINT PDU VERBOSE *
()
pdu_length = 118
contents =
0000: 01 20 00 58 01 01 01 00 00 00 00 00 00 00 00 00
0010: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 80 55
0020: 00 00 08 00 00 00 60 43 f2 41 00 88 95 3e 00 00
0030: 00 00 00 00 c0 7f 00 00 c0 7f 00 00 c0 7f 00 00
0040: c0 7f 00 00 c0 7f 00 00 c0 7f fd 00 fb 00 00 00
0050: 00 00 00 00 00 00 00 00 00 c0 7f 00 00 c0 7f 00
0060: 00 c0 7f 4f 3a 01 00 00 01 54 00 00 00 00 00 00
0070: 00 00 00 00 00 00
Good hunting all
5 Likes
yes, that’s right. Thank you
KAFASAT uses ISIS’s VHF uplink/UHF downlink Full Duplex Transceiver.
I am using the options below:
Modulation options: Gaussian Minimum Shift Keying (GMSK) with G3RUH scrambling
Data rate selectable: 1200, 2400, 4800 and 9600 bps
Datalink layer protocol: AX.25
Since there was no GMSK AX.25 G3RUH option in downlink mode, the most similar FSK AX.25 G3RUH was selected.
Can you add GMSK AX.25 G3RUH to downlink mode?
1 Like
Very happy to finally get enough elevation for a clean 2k4 decode from DJIBOUTI-1A over the Eastern U.S.! (uploaded to SatNogs)
https://twitter.com/scott23192/status/1723914445707944274
Congrats to the Team!
3 Likes
@N6RFM for PROTOMEETHE1 is the possible decoding at the frequency we have in DB?
EDIT:
I didn’t notice the frequency, it is included in your post 
For now by default all the related modes are trying AX.25, so it is not necessary to be in the mode description. I’ve changed the entry to GMSK, this should work.
Thank you.
hi everyone,
I have the impression that the TLE getting a bit old, (got a signal really late, like 20° of elevation). I heard that sollution to fine tune orbital parameters with doppler effect could be implemented. Do you have clue to how to do that ?
Also thank you a lot for your precious help for decoding
Cosmic Wander Mission Bookletpdf-1.pdf (9.5 MB)
I’m going to update the first post with the satellites from it.
Also some updates coming for NinjaSat possible frequency, a new frequency for Platform 5 and addition of Superdove 003 A13, ICEYEX 34, and Lemur 2 Marapamasan in DB.
EDIT: first post updated
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402.00 from my notes - need to verify RX agn
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