From: Goddard Space Flight Center
Posted: Friday, June 20, 2003
Although the HGA is now at the "sweet spot", troubleshooting activities continue in an effort better to understand the cause of the problem.
SOHO engineers are currently investigating whether thermal expansion during low-rate driving of the HGA motors might be responsible for the observed behavior.
More tests are scheduled for tomorrow morning.
There are now graphics that help to explain:
(1) SOHO's orbit and the (2) variation in the amount of time SOHO spends in different parts of its orbit.
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