Post #2001046
2024-04-23 06:26 UTC
It's all over my feed already, but in case I get to give you good news: VOYAGER ONE LIVES! Its incredible team managed to work around the damaged region of memory, and they're getting engineering data back again!
https://www.jpl.nasa.gov/news/nasas-voyager-1-resumes-sending-engineering-updates-to-earth
I went digging for more details, and quickly ended up out of my depth, but 🧵 of the bits and pieces I put together...
Replies (2)
-
@danderson@hachyderm.io 2024-04-23 06:35
So I guess a little orientation: there are 3 computer systems on Voyager, each one dual redundant. The CCS (Computer Command System) is the probe's brainstem, it runs the overall show, afaict it's the one receiving and routing commands. It's an adapted CCS from the Viking program, and built to last. Notably, it uses plated wire memory. Similar to magnetic core memory, slower and low density by today's standards, but non-volatile and unbothered by harsh space weather.
-
@matthiask@hachyderm.io 2024-04-23 11:09
@danderson@hachyderm.io Thanks for putting this thread together!