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Restoring redundancy to the map propulsion system
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Davis, Gary T. O'Donnell Jr., James R. Ward, David K. |
| Copyright Year | 2002 |
| Description | The Microwave Anisotropy Probe (MAP) is a follow-on to the Differential Microwave Radiometer (DMR) instrument on the Cosmic Background Explorer (COBE). Due to the MAP project's limited mass, power, and financial resources, a traditional reliability concept including fully redundant components was not feasible. The MAP design employs selective hardware redundancy, along with backup software modes and algorithms, to improve the odds of mission success. In particular, MAP's propulsion system, which is used for orbit maneuvers and momentum management, uses eight thrusters positioned and oriented in such a way that its thruster-based attitude control modes can maintain three-axis attitude control in the event of the failure of any one thruster. |
| File Size | 337097 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20020060756 |
| Archival Resource Key | ark:/13960/t07x1bd81 |
| Language | English |
| Publisher Date | 2002-01-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Instrumentation And Astrionics Microwave Radiometers Attitude Control Algorithms Redundancy Propulsion Momentum Reliability Microwave Probes Cosmic Background Explorer Satellite Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
