NASA Abbreviations and Acronyms

1. PDRSS
   Payload Development and Retrieval System Simulator
2. PDRSTA
   Payload Deployment and Retrieval System Test Article
3. PDS
   Package Data System
4. PDS
   Problem Data System
5. PDSU
   Power Distribution Servicing Unit
6. PDSU
   Power Distribution and Switching Unit
7. PDT
   Performance Demonstration Test
8. PDU
   Power Distribution Unit
9. PDU
   Pilot Display Unit
10. PDU
    Pulse Detection Unit
11. PDV
    Pressure Disconnect Valve
12. PE
    Picture Element
13. PEAP
    Personal Egress Air Pack
14. PEB
    Performance Evaluation Board
15. PED
    Pedal
16. PED
    Platform Equipment Deck
17. PEFO
    Payload Effects Follow-On Study
18. PEG
    Powered Explicit Guidance
19. PEIR
    Project Equipment Inspection Record
20. PEL
    Picture Element

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