After oldbug (sorry can’t remember your name on here) asked if CAS-5A died in the Matrix Channel I started looking into it.
I began going back thru observations and found when it last had a signal at all, and then continued further back till I found one with data which also appeared to have an anomaly in it.
The following three observation contain this anomaly.
These are the GMSK
This is a Voice / the Linear Transponder
Then all observations after wards just have this single carrier that slowly get weaker over time.
This observation is 5 hours after the anomaly occurred.
This observation is 11 hours after the anomaly.
This observation is about 15 hours after the anomaly.
This observation is about 17 hours after the anomaly.
This observation from about 22 hours after the anomaly shows the voice repeater still working.
This observation is about 24 hours after the anomaly.
Data - SatNOGS Network - Observation 7383603
Voice - SatNOGS Network - Observation 7383297
This observation is about 1 day 1 hour after the anomaly.
This observation is about 1day 2 hour after the anomaly. This is the last observation I can find with any sort of signal from the satellite on its GMSK Transmitter. (No one is scheduling the CW one it seems)
This observation is the next one and has no signals. This was 1 day 6 hours after the anomaly.
This is an observation about 1 day 10 hours after the anomaly, on one of the stations that witnessed the anomaly.
After this there appears to be no other activity on either the Linear Transponder or the GMSK data. Between the Voice observation 24hr after the anomaly and when the satellite fell silent there were only GMSK observations so it is unclear if the transponder continued operating until they both when silent.
It appears to me that the satellite may have somehow locked up and drained its batteries.