Hello, Scott. No, this is not the UMKA signal. At the moment, the UMKA uses a preset frequency of 437.625 MHz. And it follows the commissioning scenario, which does not provide for the operation of SSTV on a backup frequency. But the observation is interesting. It will be necessary to understand which satellite this signal is coming from in order to avoid mutual interference in the future.
Thanks for the information.
Sincerely, Aleksey.
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Thank you so much for the reply & info!
Jan was kind enough to provide a recording, so if I’m able to decode or determine anything at all, I’ll post here asap.
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435.820 MHz?
Might be from other satellites that was launched which frequencies we don’t know yet.
Added the new transmission (2k4) in DB and made inactive the 4k8 one.
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We are missing information, these two satellites are even using multiple modulations schema’s (maybe also frequencies)
And also one with some very wide signals
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Corrected TLE for Stratosat TK-1
STRATOSAT TK-1 (RS52S)
1 99151U 23182.74552045 .00000000 00000-0 70046-3 0 06
2 99151 97.6652 230.6640 0016018 248.3731 150.1981 15.02666880 04
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Can we have TLE sets for these? Let’s create some unknown objects in DB and track them 
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Here is one on 435.740
cat 435740.tle
1 99163U 23178.60752041 .00000000 00000-0 70046-3 0 07
2 99163 97.6652 229.4565 0010018 222.4731 127.9323 15.02666880 08
# 20230701.81-20230701.82, 6 measurements, 0.113 kHz rms
``
It needs a new temp oject id and conversion to that id.
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Unkown Satellite added: SatNOGS DB - Satellite 1 of 23091
The above TLE changed to use the temporary NORAD ID:
Satellite 1 of 23091
1 99080U 23178.60752041 .00000000 00000-0 70046-3 0 05
2 99080 97.6652 229.4565 0010018 222.4731 127.9323 15.02666880 06
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Hm… from the list in the first post… this probably is one of the ReshUCube-2(RS37S) transmissions.
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Gentlemen, good afternoon!
Maybe someone receive Sirius-SINP-3U (99152) Satellite ID BFNY-6054-1647-2729-6927, Callsign R6DRF
Frequency 436.550 MHz modulation type OOK (200) / AFSK (1200)?
Kind regards, Roman
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No decode, but there are some packets visible in this observation:
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Thank you! 
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Sadly, the station might presumably have significant frequency offset. So this signal might be from CUBESX-HSE-3 - 436.570 mhz
I will try to clarify this tomorrow
MONITOR-3 Object 99138
MONITOR-3
1 99138U 23183.42555556 .00000000 00000-0 70046-3 0 07
2 99138 97.6652 234.0639 0000000 0.4650 115.3920 15.03101955 00
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Corrected TLE for Stratosat TK-1
STRATOSAT TK-1 (RS52S)
1 99151U 23183.87652045 .00000000 00000-0 70046-3 0 02
2 99151 97.6652 230.6640 0016018 255.3731 140.1981 15.02666880 01
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Stratosat TK-1 and a long string of data, Almost for the entire pass. similar to the geoscan satellite. Maybe it is the images ?
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This was telemetry dump. But I hope there will be image and video transmissions from the cubesat
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Hi Geoscan team:
Can you plan those transmissions and let us know when they will be?
Thanks