Spaceflight Abbreviations and Acronyms

  1. OSCR
    Orbiter Software Change Request
  2. OSCRS
    Orbital Spacecraft Consumables Resupply System
  3. OSDH
    Orbiter System Definition Handbook
  4. OSE
    Orbital Support Equipment
  5. OSO
    Orbiting Solar Observatory
  6. OSS
    Orbiting Space Station
  7. OSS
    Office of Space Sciences
  8. OST
    Orbiter SuPport Trolley
  9. OSTA
    Office of Space and Terrestrial Applications (US NASA; now OAST)
  10. OSTDS
    Office of Space Tracking and Data Systems (NASA)
  11. OSTO
    Office of Space Transportation Operations
  12. OSTP
    Orbiting System Test Plan
  13. OSTS
    Office of Space Transportation Systems
  14. OTB
    Orbiting Tanker Base
  15. OTC
    Orbiter Test Conductor
  16. OTD
    Orbiter Test Director
  17. OTOS
    Orbit-To-Orbit Stage
  18. OTS
    Orbiter Test Conductor
  19. OTV
    Orbital Transfer Vehicle
  20. OV
    Orbital Vehicle

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