Aerospace Engineering Abbreviations and Acronyms

1. OS
   on-orbit station
2. OSC
   Orbital Sciences Corporationration
3. OSCAR
   Orbiting Satellite Carrying Amateur Radio
4. OSCN
   Orbiter Specification Change Notice
5. OSCR
   Orbiter Software Change Request
6. OSCRS
   Orbital Spacecraft Consumables Resupply System
7. OSDH
   Orbiter System Definition Handbook
8. OSE
   Orbital Support Equipment
9. OSM
   Orbiter Service Module
10. OSO
    Orbiting Solar Observatory
11. OSOP
    Orbiter Systems Operating Procedure
12. OSS
    Orbiting Space Station
13. OSS
    Office of Space Sciences
14. OSSA
    Office of Space Sciences and Applications
15. OSSIU
    Orbiter-Space Station Interface Unit
16. OSSRH
    Orbiter Subsystem Requirements Handbook
17. OST
    Orbiter SuPport Trolley
18. OSTA
    Office of Space and Terrestrial Applications (US NASA; now OAST)
19. OSTDS
    Office of Space Tracking and Data Systems (NASA)
20. OSTO
    Office of Space Transportation Operations

Last updated: May 24, 2020 — Total entries: 1,638