NASA Abbreviations and Acronyms

1. PCS
   Pointing Control Subsystem
2. PCSIU
   Pcs Interface Unit
3. PCTE
   Portable Commercial Test Equipment
4. PCTO
   Payload Cost Tradeoff Optimization
5. PCTR
   Pad Connection Terminal Room
6. PD
   Pound
7. PD
   Position Description
8. PD
   Project Directive
9. PD
   Propellant Dispersal
10. PD
    Power Distribution
11. PD
    Period
12. PD
    Program Directive
13. PD
    Pitch Down
14. PD
    Procurement Document
15. PD
    Procurement Drawing
16. PD&RS
    Payload Deployment and Retrieval Subsystem
17. PD&RS
    Payload Deployment and Retrieval System
18. PDA
    Percentage of Defectives Allowable
19. PDA
    Photon Detector Assembly
20. PDB
    Performance Data Book

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