| Acronym | Meaning |
 | RAM | Random Access Memory |
| VMS | Velocity Measuring System |
| HVSL | Holidays |
| SHA | Sidereal Hour Angle |
| DRA | Data Release Authorization |
| GPI | Gimbal Position Indicator |
| DF-SPE-A | Shuttle Project Engineering Office |
| FOST | Flight Operations SUPPOrt Team |
| I | DAS Integrated Data Acquisition System |
| L | Level |
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