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Acronym: OBS
Other acronyms from this category
| Acronym | Meaning | | SU | Support Unit | | TBA | To Be Announced | | WUSCI | Western Union Space Communications | | SMART | Shuttle Meeting Action - Item Review Tracking | | BTR | Boom Time Remai-ni'ng | | GORS | GrGORSGround Observer RF System | | SLN | ERNO SPacelab Payload | | MMS | Mission Modular Spacecraft | | OC | Open Circuit | | EA | Elevation Angle |
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