Post #2299444
2024-04-23 06:44 UTC
So anyway, five months ago Voyager 1 seemingly went mad, and started sending back nonsense instead of its usual science data frames. After some poking and puzzling that I still don't understand, they managed to get the craft back into a state where it was able to send a core dump of the FDS memory, and from that they worked out that the CMOS memory had finally taken a bit too much punishment, and ~3% of it was damaged. Including parts of the programs that prepare engineering and science data.
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@danderson@hachyderm.io 2024-04-23 06:47
So, first of all, I hope they sent a defect report to whoever made the memory chips. There's nothing like real world durability data of 46 years in space to help a manufacturer fine-tune their processes! But also, for the first CMOS memory in space... 46 years ain't bad, tbh. So anyway, at this point if I'm following properly, through the CCS the team have some small amount of control over the FDS, at least enough that they can poke at its memory.