NASA Abbreviations and Acronyms

1. ALSA
   astronaut life support assembly
2. ASPS
   annular suspension and pointing system
3. CASS
   Consolidated Automated Support System
4. CASS
   CITE Augmentation Support System
5. CSSA
   Coarse Sun Sensor Assembly
6. ISTA
   Intertank Structural Test Assembly
7. SPS
   Secondary Propulsion System
8. SPS
   Samples Per Second
9. SPS
   Spectrum Planning Subcommittee
10. SPS
    Service Planning Segment
11. SPS
    Service Propulsion Subsystem
12. SPS
    Statement of Prior Submission
13. SPS
    Signal Processing Subsystem
14. STSCI
    Space Telescope Science Institute
15. USNO
    United States Naval Observatory
16. USRA
    Universities Space Research Association
17. D&C
    Direct Current
18. D&C
    District of Columbia
19. D&C
    displays and controls
20. D&C
    Display and Control (c&d Preferred)

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