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za419 t1_j1t4kek wrote

Reply to comment by Commies4Lyfe in Meet the amateur astronomer who found a lost NASA satellite by jarvedttudd

NASA gives minimum lifespans, not averages or expectations.

In other words, when NASA says "the rover will last 90 days", they mean "the rover will last no less than 90 days".

Consequently, everything should at least hit that lifespan. If it doesn't, something fucked up and the mission failed. That also means that those 90 days is the time NASA wants the spacecraft to last to consider launching it to have been worthwhile.

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Jaegermeiste t1_j1taogj wrote

Well, NLT 90 days, unless we yeet it into a planet first, because maybe nobody cross checked the units

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za419 t1_j1ths8f wrote

Well, that would fall under "something fucked up and the mission failed"!

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