NASA-LLIS-0310
Lessons Learned – Mars Observer Inertial Reference Loss
| Organization: | NASA |
| Publication Date: | 3 March 1994 |
| Status: | active |
| Page Count: | 3 |
scope:
Abstract:
Mars Observer experienced inertial reference loss on several occasions during its cruise to Mars. These incidents were due to the lack of a detailed code walk-through, and to use of gyro noise values, obtained from in-house test, that were more optimistic than the manufacturer's specifications. Do not depend on hardware performance being better than the manufacturer's specification. Perform detailed code walk-through of critical software modules. Pay special attention to inherited critical software. Design the flight computer and software to permit necessary changes in flight.
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