How NASA could have prevented a $200m crash with Julia's type system

xiaodai · April 13, 2020, 9:27am

It’s my first data science-related youtube video. I had some fun making it.

lostella · April 13, 2020, 10:09am

Maybe they can use Julia now to come up with a time machine and go back to 1999 to prevent the crash? Hopefully the Julia type system can help them take into account for leap seconds and so on

helgee · April 13, 2020, 4:57pm

Yes it can: GitHub - JuliaAstro/AstroTime.jl: Astronomical time keeping in Julia

Syx_Pek · April 13, 2020, 7:30pm

Certainly wouldn’t the GC in Julia cause more problems in a real time system like this?

helgee · April 13, 2020, 8:17pm

In this case, the issue was not in the on-board software but in the ground segment. Flight dynamics calculations are usually done offline, so no real-time requirements there.

xiaodai · April 13, 2020, 9:42pm

I am almost sure the calculation were done offline first.