| Acronym | Meaning |
| DELTA-T | Difference In Temperature |
| NAR | Numerical Analysis Research |
| CA | Corrective Action |
| RIB | Recoverable Item Breakdown |
| CCL | Configuration Control Logic |
| TDRS | Telemetry Downlist Receiving Site |
| MIP | MinimumImpulsePulse |
| CB/AC | Circuit Breaker (ac Only) |
| PSF | Processing And Storage Facility (ET) |
| PHOTO | Photograph |