Sorry for the late reply. Awesome that you were able to decode so many frames. We have a document the describes the telemetry format and source packets, but it is outdated as a lot of source packets now have a newer version:
TechnoSat_TUBIN_Telemetry_Format.ods
@kerel also asked about something similar recently and a colleague created the following document, a bit different format:
TUBiX20_Telemetry_Format.zip (78.4 KB)
You should be able to get all needed information out of it, but I know it is not very convenient. I would love to have a kaitai, then we could also decode the telemetry in SatNOGS DB directly, but no one had time for that yet. Maybe after the re-entry? I think @kerel wrote a small script to handle that, maybe he is open to share it?