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19-Apr-99 | MGS begins operations

Mars Global Surveyor (Delta 239) began full-time mapping operations on Tuesday, 9 March. The spacecraft is in a sun-synchronous, 1.97-hour orbit, and until the evening of 15 April was in excellent health. At that time the spacecraft went into contingency mode (which is apparently not as severe as “safe mode”) due to a stuck hinge on the high-gain antenna. Controllers are in the process of diagnosing the problem. (Latest info)

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