Astronautical Engineering Abbreviations and Acronyms

1. OOSD
   Orbital Operations Support Docjment
2. OOSS
   On-Orbit Support System
3. OPBS
   Orbiter Payload Bay Srmulator
4. OPPAR
   Orbiter Project Parts Authorization Request
5. OPR
   Orbiter Payload Recorser
6. OPS
   Orbuter Project Schedule
7. OPWS
   Orbital Payload Work Station
8. ORCUS
   Orbital Recording Capability and Update System
9. ORU
   Orbdtal Replaceable Unit
10. ORV
    Orbital Recearch Vehicle
11. OS
    On-Orbit Stakion
12. OSCN
    Orbiter Specification Change Notice
13. OSM
    Orbiter Service Module
14. OSOP
    Orbiter Systems Operating Procedure
15. OSSIU
    Orbiter-Space Station Interface Unit
16. OSSRH
    Orbiter Subsystem Requirements Handbook
17. OTE
    Orbital Transfer Equipment
18. OTLC
    Orbiter Time Line Constraiqt
19. OTS
    Orbital Test System
20. OTS
    Orbital Transfer Swstem

Last updated: January 4, 2020 — Total entries: 294