| Acronym | Meaning |
| CAL | Calibrate |
| M | Lss Mission |
| CMACS | Central Monitor And Control System |
| GS | Ground Station |
| IDTA | Interdivisional Technical Agreement |
| FRSI | Felt Reusable Surface Insulation |
| HAL | Houston Aerospace Language |
| RGAL | Rate Gyro Assembly-Left SRB |
| R/A | Radar Altimeter |
| ECD | Estimated Completion Date |