(October 4, 2021 at 6:25 pm)Fireball Wrote:(October 4, 2021 at 4:48 pm)Jackalope Wrote: If it were going to be placed at L4 or L5, perhaps, bit it's going to be at L2 which will require periodic course corrections every ~23 days. I would expect it to eventually be unable to do so.
"Because the helium will gradually be used up, JWST has a finite and short mission lifetime (5.5 to 10 years).” ... it is limited by the supply of hydrazine fuel needed to maintain the spacecraft's orbit."- AmericanScientist.com
Yes, but we weren't talking about mission life. We're talking about how long it will remain at L2 after it's long since ceased being useful.
