| Acronym | Meaning |
 | I | LAS Instrument Landing Approach System |
| CVAD | Converter |
| O/R | Outside Radius |
| TR2 | Payload Furnished Mars Tape Recorder (2 Of 2) |
| DOD | Department Of Defense |
| CCIM | Command Computer Input Multiplexer |
| TI | Information Systems (KSC Directorate) |
| SOMS | Shuttle Orbiter Medical System |
| GPS | Global Positioning System |
| SWT | Sextant |
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