| Acronym | Meaning |
 | COBE | COsmic Background Explorer |
| TIROS | Television InfraRed Observation Satellite |
| VAFB | Vandenberg Air Force Base |
| SSME | Space Shuttle Main Engine |
| HF | High Frequency |
| CDS | Command And Data Subsystem |
| OCTW | Optical Communications Through The Shuttle Window |
| LRSI | Low-temperature Reusable Surface Insulation |
| AFGWC | Air Force Global Weather Center |
| PPM | Positions And Proper Motions (catalog) |
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