Contingency Procedures
Anomalies are dealt with through the following:
- On-board Telemetry and Statistics Monitors that sense an anomalous condition and either warn the Ground through an Event Message or initiate a Relative Time Sequence to safe the instruments and/or spacecraft. These are system level protections.
- Box or Instrument level Failure Detection and Correction software that, like the system level protection, sense and initiate safing events.
- Ground-based contingency procedures that are used to determine an unsafe condition exists and what steps should be taken to return to a safe condition.
Required and highly desired contingency procedures have been identified and developed by the Systems, Subsystem, Instrument, and Flight Ops teams.
95 % of the analysis of flow charts and 100% of testing of STOL procedures has occurred
All simulations, except the first, have contained anomalies. This allows for training the team on how to use the procedures.