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Spacecraft Status

B.Fleck presented the spacecraft status (annex 3) on behalf of M.Chaloupy, J.-P.Olive, and H.Schweitzer.

SOHO ESR-15 occurred just past midnight UT on 29 November 2000. The cause was a reset of the attitude control unit (ACU). Frozen telemetry packets showed no indications as to the cause.

SOHO was back in normal mode only 36 hours after the ESR.

Regarding solar array degradation, the margin is about 3 times the loss to date.

There are no concerns regarding the spacecraft health. The main risk factor regarding operations remains Flight Operations Team attrition.

Luis Sanchez Duarte
Thu Jan 18 14:12:23 EST 2001