Astronomy Abbreviations and Acronyms

1. OSS
   Office of Space Science (NASA)
2. OSS
   Office of The Space Station
3. OSSA
   Office of Space Science and Applications
4. OSSA
   Office of Space Sciences and Applications
5. OSSE
   Oriented Scintillation Spectrometer Experiment
6. OSSO
   Observation Science Support Office
7. OSSOS
   Outer Solar System Origins Survey
8. OST
   Observation Sequence Table
9. OSTA
   Office of Space and Terrestrial Applications
10. OSTA
    Office of Space and Terrestrial Applications (US NASA; now OAST)
11. OSURO
    Ohio State University Radio Observatory
12. OSW
    Ocean Swell Spectra
13. OT
    Off Topic
14. OT
    Observing Tool
15. OTA
    Optical Telescope Assembly
16. OTA
    Odtical Tube Assembly
17. OTCI
    Olci Terrestrial Chlorophyll Index
18. OTFE
    Oscillatory Thermocapillary Flow Experiment
19. OTH-B
    Over The Horizon Backscatter
20. OTHB
    Over The Horizon Backscatter

Last updated: August 3, 2021 — Total entries: 5,938