| Acronym | Meaning |
 | SPDM | Special Purpose Dextrous Manipulator |
| NBS | National Bureau Of Standards |
| ET | Ephemeris Time |
| NTR | Nuclear Thermal Rocket(ry) |
| BD | Bonner Durchmusterung (catalog) |
| IDL | Interactive Data Language |
| CETA | Crew And Equipment Translation Aid |
| USN | United States Navy |
| HEAO | High Energy Astronomical Observatory |
| MOC | Mars Observer Camera |
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