| Acronym | Meaning |
| IDO | InterdivisionalOperations |
| DL | Downlink |
| DRD | DetailedRequirementsDocument |
| SPO | SYstem Program Office |
| CKAFS | Cape Kennedy Air Force Station (Changed To CCAFS) |
| GMCL | Ground Measurements Command List |
| U/V | Under Voltage |
| IPS | IRInclination Of The Ascending Return |
| ORS | Orbital Refueling System |
| TPS | Thermal Protection System |