| Acronym | Meaning |
 | SIR | Shuttle Imaging Radar |
| AACS | Attitude And Articulation Control Subsystem |
| LSR | Local Standard Of Rest |
| NBS | National Bureau Of Standards |
| MCC | Mission Control Center |
| SME | Solar Mesosphere Explorer |
| BNSC | British National Space Centre |
| DDCU | DC-to-DC Converter Unit |
| MMPO | Mission Management And Planning Office |
| DCA | Defense Communications Agency |
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