I have not seen the names “Polytech Universe 1 & 2” mentioned here, but following up on a tweet:
… I recorded a low pass of Objects 53371/53372 and after replay & analysis, find that their downlinks are 62.5k LoRa.
The LoRa parameters shown in the following tweet are probably not all exactly correct, but they were close enough for me to get a decode from one of the dirty packets from this low pass. So, I’ll be interested to see confirmation eventually of what these 2 objects are and hopefully even some info about the telemetry payload