| Acronym | Meaning |
 | OPA | Operations Planning Analysis |
| PM | Pulse Modulation |
| DMP | Dump |
| MPAD | Mission Planning And Analysis Division (JSC) |
| OTOS | Orbit-to-Orbit Stage |
| CSM | Command Service Module |
| DBGMP | DBMData Base Management |
| FDS | Flight Dynamics Software/System |
| SSA | 1/0 GCOS Program Element Name |
| OASCB | Orbiter Avionics Software Control Board |
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