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Operations
Nominal Spring 2002 eclipse season.
Patch up-linked to increase glitch counters and mitigate EPHIN hardware failure glitch counter trips of SCS 107 (second occurrence on 4/2/02 however EPHIN hardware is nominal and cause traced to subtle timing condition).
Successful test of bright earth constraint limitation. Expected to lead to reduction of the 20 degree constraint yielding more flexible scheduling.
6 executions of SCS 107 due to high solar activity, 1 assessed as due to EPHIN hardware failure glitch.
- No ACIS CTI degradation above expectations.
Anomalies
Hosted a number of visits or discussions with other mission teams:
- NGST, SIRTF, Kepler, SIM, HST (July).