Voyager Status, What is it? |
Voyager Status, What is it? |
Dec 6 2006, 05:48 AM
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Member Group: Members Posts: 428 Joined: 21-August 06 From: Northern Virginia Member No.: 1062 |
Anyone know the latest Voyager status? I've hear rumors, but I'm wondering if anyone has anything more concrete (I won't share the rumors, as I really don't know much about it, so...)
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Guest_Analyst_* |
Jan 5 2007, 07:54 AM
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Guests |
This is the same switch they did on Voyager 1 in early 2002. Switching HYBIC means you have to use the redundant star tracker (roll) and sun sensor (pitch and yaw) as well, even if the current used ones are just fine. On the other hand, the scan platform pointing information (azimuth and elevation) is no longer needed. So there is some risk because you use other sensors with different and not completely known biases. And there is the possibility HYBIC 1 is not working and you have to switch back to the dedraded HYBIC 2. The AACS computer in charge remains the same, there is no switch planned.
Interesting note: One branch of attitude control trusters for pitch and yaw failed in 1999. But they are not critical on that because they can use the (larger) TCM trusters if the second branch fails. Analyst |
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