| Acronym | Meaning |
 | GLOMR | Global Low-Orbiting Message Relay |
| RCS | Reaction Control System / Revision Control System |
| DAO | Dominion Astrophysical Observatory |
| OAO | Orbiting Astronomical Observatory |
| IOBM | In Ocean By Mistake |
| NLDP | National Launch Development Program |
| USO | Ultra-Stable Oscillator |
| OCTS | Ocean Color And Temperature Scanner |
| GGM | Goskogidromet/Gidromettsentr |
| DDTE | Design |
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