S-NPP Risk Mitigation Maneuver Response Time Optimization via Pre-verified Maneuver Sequences

摘要

The Suomi National Polar-orbiting Partnership (S-NPP) satellite operates in a dense debris environment; therefore, monitoring and responding to close approaches between debris objects and the spacecraft is vital to mission success. The current method for responding to close approaches is both resource- and time-intensive and requires the Mission Operations Team (MOT) to start the process before a threat to the spacecraft is fully analyzed. A new method for preparing and executing a Risk Mitigation Maneuver (RMM) could reduce the time and resources required for responding to a close approach. By reducing response time, the MOT is able to allow more time for the close approach to be analyzed and characterized as actionable, preventing unnecessary reaction to non-actionable threats. This new method, called the On-Board Stored Maneuver Sequence (OSMS) system, uses pre-verified command sequences and ground commands to execute a RMM.