Regarding Observation 14626003 …
This observation seems to have picked up ARISS audio on this observation.
I’m thinking its somehow a 1mhz alias on my end? If so, have others seen these? Call signs are regulars on ARISS.
Hardware is an Airspy-Mini and Raspberry PI 4.
Very strange. With an Airspy Mini @ 6MSPS as your metadata shows I’d never expect an image transmission from 1 MHz offset. Assuming you are not in close range of an MW transmitter up or around that frequency mixing up but that would have garbled the modulation too. \
Could have been AO-27 on 436.798Mhz? SatNOGS DB - EYESAT-1
The math is much easier to explain with AO-27 instead of ARISS.
The doppler does seem to work out on explaining this.
Not a good pass for SNUGLITE III, but it was an interesting one!
73 - KC1OCA
Can confirm it was not AO-27
Could have been the ISS somehow but it only just came above your horizon at all half way thru the pass, just when the signal starts coming up. Very odd.
I have done some more research it could have been SAUDISAT 1C as its the only satellite (in satnogs) with a “near by” (5 Khz offset) frequency SatNOGS DB - SAUDISAT 1C Its drifted downlink is at 436.793 Mhz while the obs freq is 436.788 Mhz. (Also checked an ISS obs at the same time and its for sure not the ISS. Attached is my attempt at using ikhnos with it drawing the line at 5 Khz offset. (Used the command “python ikhnos.py 14626003 -f 5” with the old Saudisat 1C TLE from the network.
