NASA Abbreviations and Acronyms

1. PAR
   Problem Accountability Record
2. PAR
   Problem Action Record
3. PAR
   Problem Action Request
4. PAR
   Product Acceptance Review
5. PAR
   Personnel Action Request
6. PAT
   Problem Action Team
7. PAT
   Production Acceptance Test
8. PATS
   Program for Analysis of Time Series
9. PRP
   Personnel Reliability Program
10. R&C
    Radio Command
11. R&C
    Remote Control
12. R&D
    Research and Development
13. R&D
    Rate of Descent
14. R/E
    Reentry
15. S&L
    Shop/laboratory
16. S&P
    Signal Processor
17. S&P
    Serial To Parallel
18. S&U
    Set Up
19. SAS
    Small Astronomy Satellite
20. SAS
    Shuttle Avionics System

Last updated: May 6, 2025 — Total entries: 14,020