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No, the comment you're replying to is confused. These gyroscopes are entirely used for determining Hubble's orientation. Reaction wheels effect the actual rotat
by SaberTail 2y ago
No, the comment you're replying to is confused. These gyroscopes are entirely used for determining Hubble's orientation. Reaction wheels effect the actual rotation, and Hubble's are fine.
I think the confusion is a result of imprecise language talking about how they are used to slew the telescope. They are "used" but as feedback, in conjunction with other systems. Also, there have some prominent reaction wheels failures on other missions, and that contributes to the confusion.
- cubefox 2y agoThanks, this makes sense. I guess I should look up the difference between gyroscopes and reaction wheels next.
- ijustlovemath 2y agoPer your name: https://m.youtube.com/watch?v=n_6p-1J551Y&pp=ygUG https://m.youtube.com/watch?v=n_6p-1J551Y&pp=ygUG
- Rebelgecko 2y agoFWIW I think 2 of the Hubble's 4 reaction wheels are dead, which also requires some interesting workarounds