| Acronym | Meaning |
| NIA | NNIA NOVA Interface Adapter |
| BDA | Backup Drive Amplifier |
| FLTR | Filter |
| NEA | Noise Equivalent Angle |
| OAFTO | Orbiter Atmospheric Flight Test Office |
| GMAL | General Electric Macro Assembly Language |
| MEWG | Maintenance Engineering Working Group |
| OMI | Operations And Maintenance Instruction |
| GSAT | General Satellite (STS) |
| MAF | Manpower Authorization File |