Observation 7298384: COMPASS-1 (32787)

Satellites & Observations Observations
1

Regarding Observation 7298384
Also visible on Observation 6399694
Looks like it’s still alive.

Decoded the morse string “MPASSF2003000000700300000D50007”
Which according to @PE0SAT results in:
bild

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2023-03-19 SatNOGS Network - Observation 7298384
00COMPASSF2003000000700300000D50007
see above

2023-01-10 SatNOGS Network - Observation 7010645
00COMPASS77050000006700200000D63707
7010645-decoded

2022-08-29 SatNOGS Network - Observation 6399694
00COMPASSA2007800700600200000D52405
6399694-decoded

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That’s fantastic news. Could you send a DTMF sequence to COMPASS and listen to what happens? The confirmation should be a short beep and if you send **35## a test beacon (CW) should appear.

145.980 MHz uplink (FM, DTMF)
437.275 MHz beacon down (FM)

Any help would be greatly appreciated.
Mike, DK3WN

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I’ll see what I can do, I don’t have any good way of sending dtmf for now, I’ll give it a try tomorrow on a high elevation pass and test with a few options (ht, mobile rig).

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Satellite responds with a short “ping” to a series of dtmf tones **35##

compass1
compass11364×874 143 KB

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And after send CW
compass1.zip (488.4 KB)

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00 COMPASS FF29 12040 70000 20000 06700 07 CW decode
image

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Forgot to post it after decode, from 2 days ago:

2023-03-21 09:15 SatNOGS Network - Observation 7304235
00COMPASSFF074500000700200000B10011
7304235-decoded

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looks like it was captured on obs 7313019 as well. nice! (:

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Great news. Can you try to send **36##, please? You should get a data test packet (1k2 AFSK) on 437.405 MHz.If this works you can also request a housekeeping dump with **60##.Would be good to see the telemetry. Good luck and thank you!!!

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