Japan's Moon lander makes it through another lunar night
https://www.theregister.com/2024/04/25/slim_another_lunar_night/By LorenDB at
inamberclad | 2 comments | 3 weeks ago
konschubert | 2 comments | 3 weeks ago
I would guess the main value is in practicing the technological skills of sending a thing to the moon and maintaining connection with it.
dotnet00 | 0 comments | 3 weeks ago
inamberclad | 0 comments | 3 weeks ago
zoom6628 | 1 comment | 3 weeks ago
chasil | 2 comments | 3 weeks ago
Are we able to also simulate the radiation in a laboratory?
I will wager that this was done prior to launch, and current longevity is not a complete surprise.
dotnet00 | 0 comments | 3 weeks ago
As for radiation, I attended a lecture series last year about the various kinds of radiation testing involved in designing hardware for satellites, they probably did do similar things to those for satellite electronics (stuff like firing beams of IIRC electrons over the PCBs to see what parts might need reinforcement/redundancy against random charged particle strikes).
yencabulator | 0 comments | 3 weeks ago
Also, the point of SLIM was to test the new automatic landing system, a combination of camera-based navigation and a new landing strut system meant to handle inclines. 100 meter precision instead of previous 20 km. Everything that comes after that is near-free extra data.
liampulles | 0 comments | 3 weeks ago
In that documentary, it was remarked by one of the engineers that scientists often designed these instruments to be more robust than what was expected.
p1mrx | 2 comments | 3 weeks ago
https://www.jstage.jst.go.jp/article/tjsass/66/6/66_T-22-48/...
icegreentea2 | 0 comments | 3 weeks ago
So ya, they probably didn't do any significant testing below 0C.
Woovie | 1 comment | 3 weeks ago
dylan604 | 0 comments | 3 weeks ago
ryan_j_naughton | 1 comment | 3 weeks ago
Mkengine | 1 comment | 3 weeks ago
user_7832 | 3 comments | 3 weeks ago
Tade0 | 0 comments | 3 weeks ago
There's another problem here: below a certain temperature semiconductors become insulators. You're running the risk of your chip shutting down in a disorderly manner.
dotnet00 | 1 comment | 3 weeks ago
yencabulator | 0 comments | 3 weeks ago
jordz | 2 comments | 3 weeks ago
qwertox | 2 comments | 3 weeks ago
−273,15°C < −247°C.