| Acronym | Meaning |
 | SACS | Software Avionics Command SuPport |
 | MAR | Memory Address Register |
 | R&DO | Research And Development Operations (MSFC) |
 | OPL | Operational |
 | POD | Payload Operations Division (JSC) |
 | DRR | Design Requirements Review |
 | TPS | Test Preparation Sheet |
 | NC1 | Nominal Correction 1 (Phasing Maneuver) |
 | RECVR | Receiver |
 | OCR | Optical Character Recognition |