| P | precision navigation signal
|
| P | protected signal
|
| P | roll rate (angular rate)
|
| P&C | Procurement and Contracts (MSFC)
|
| P&D | panels and displays
|
| P&E | pricing and estimating
|
| P&E | propellant and explosive
|
| P&I | performance and interface
|
| P&LRP | productivity and long-range planning
|
| P&M | production and maintenance
|
| P&MD | productivity and manufacturing development
|
| P&P | policies and procedures
|
| P&PQ | productivity and product quality
|
| P&PQI | productivity and product quality improvement
|
| P&PQIC | Productivity and Product Quality Improvement Council
|
| P&Q | productivity and quality
|
| P&R | performance and resources
|
| P&SM | procurement and subcontract management
|
| P&TE | packaging and transport engineering
|
| P&VE | propulsion and vehicle engineering
|
| P(Ls) | probability of launch success
|
| P-P | peak to peak
|
| P/A | pressure-actuated
|
| P/A | problem analysis
|
| P/B | piggyback
|
| P/B | playback electronics
|
| P/C | pay code
|
| P/CI | payload/cargo integration
|
| P/L | parts list
|
| P/L | payload
|
| P/L | postlanding
|
| P/L | purchased labor
|
| P/N | part number
|
| P/O | provisioning order
|
| P/OF | pinhole/occulter facility
|
| P/P | patch panel
|
| P/P | prelaunch and postlanding
|
| P/P | printer/plotter
|
| P/PL | primary payload
|
| P/S | parallel to serial
|
| P/S | power supply
|
| P/T | prototype
|
| P/W | password
|
| P/Y | pitch/yaw
|
| P2I | preplanned productivity increase
|
| P3I | preplanned product improvement
|
| P3I | preplanned production improvement
|
| PA | pad abort
|
| PA | paging and area warning
|
| PA | power amplifier
|
| PA | precision angle
|
| PA | primary amplifier
|
| PA | product assurance
|
| PA | public address
|
| PA | public affairs
|
| PA | pulse amplifier
|
| PAA | Pan American Airlines
|
| PAA | problem assessment area
|
| PABF | Precision Air Bearing Facility
|
| PAC | Problem Action Center
|
| PAC | postaward conference
|
| PAC | pressure alpha center
|
| PAC | probe aerodynamic center
|
| PAC | program analyzer console
|
| PACA | payload accommodation configuration assessment
|
| PACAS | personnel access control accountability system
|
| PACC | PERT-associated cost control
|
| PACC | Problem Action Control Center
|
| PACCS | postattack command control system
|
| PACE | power and control electronics
|
| PACE | prelaunch automatic checkout equipment
|
| PACE | producible alternative to cadmium-telluride epitaxy
|
| PACE | product acceptance configuration element
|
| PACK | payload active cooling kit
|
| PACO | parts control
|
| PACO | prelaunch automatic checkout
|
| PACRUSS | passive and active control of space structures
|
| PACS | pointing and attitude control system
|
| PAD | preliminary advisory data (crew data uplink)
|
| PAD | program approval document
|
| PAD | propellant acquisition device
|
| PAD | pulse amplitude detector
|
| PADS | problem action data system
|
| PADSIM | precision attitude determination simulation
|
| PAE | preventive action engineer
|
| PAE | problem assessment engineering
|
| PAF | payload attach fitting
|
| PAF | peak annual funding
|
| PAFB | Patrick Air Force Base
|
| PAH | Payload Accommodations Handbook
|
| PAIS | product assurance information system
|
| PAL | lower port pressure
|
| PAL | parts authorization list
|
| PALAPA | Indonesian communication satellite
|
| PALS | photo area and location system
|
| PALS | precision approach and landing system
|
| PAM | payload assist module
|
| PAM | propulsion avionics module
|
| PAM | pulse amplifier modulation
|
| PAM | pulse amplitude modulation
|
| PAM-A | payload assist module, Atlas-Centaur class
|
| PAM-D | payload assist module, Delta class
|
| PAM500 | payload assist module, test equipment
|
| PAMB | pressure ambient
|
| PAN | polyacrylonitrile
|
| PAN | probabilistic analysis network
|
| PAO | Public Affairs Office (NASA)
|
| PAP | payload accommodation plan
|
| PAP | payload adapter plate
|
| PAP | personnel assurance program
|
| PAP | product assurance plan
|
| PAPI | precision approach path indicator
|
| PAPL | project-approved parts list
|
| PAR | planning action request
|
| PAR | precision approach radar
|
| PAR | problem accountability record
|
| PAR | problem action report
|
| PAR | problem action request
|
| PAR | product acceptance review
|
| PARB | Problem Assessment Review Board
|
| PARS | property accountability record system
|
| PARS | property accounting and reporting system
|
| PAS | payload accommodation study
|
| PAS | primary alerting system
|
| PAS | problem assessment system
|
| PAS | productivity, affordability, and supportability
|
| PASR | problem analysis status report
|
| PASS | planning and scheduling system
|
| PASS | primary avionics and software subsystem
|
| PASS | primary avionics software system
|
| PAT | problem action team
|
| PAT | production acceptance test
|
| PATE | performance analysis, test, and evaluation
|
| PATH | performance analysis and test history
|
| PATH | postflight attitude and trajectory history
|
| PATHS | precursor above-the-horizon sensor
|
| PATP | preliminary authority to proceed
|
| PATRAN | patches to NASTRAN
|
| PATRAN | trademark of Prototype Development Associates Engineering
|
| PATS | payload avionics test station
|
| PATS | program for analysis of time series
|
| PAU | probe aerodynamic upper
|
| PAU | upper port pressure
|
| PAV | pressure-actuated valve
|
| PAW | plasma arc welding
|
| PAWS | personal Atlas work station
|
| PB | phonetically balanced
|
| PB | playback
|
| PB | preburner
|
| PB | push button
|
| PBAN | polybutadiene arcylonitrile
|
| PBD | payload bay door
|
| PBDF | payload bay door forward
|
| PBDM | payload bay door mechanism
|
| PBI | polybenzimidezole
|
| PBI | push-button indicator
|
| PBIC | programmable buffer interface card
|
| PBIM | programmable buffer interface module
|
| PBK | payload bay kit
|
| PBL | payload bay liner
|
| PBM | program business management
|
| PBP | preburner pump
|
| PBPS | postboost propulsion system
|
| PBS | payload berthing system
|
| PBS | program breakdown structure
|
| PBS | protective breathing system
|
| PBTS | payload bay transfer system
|
| PBV | postboost vehicle
|
| PBW | particle-beam weapon
|
| PBW | proportional bandwidth
|
| PBX | private branch exchange (telephone)
|
| PC | personal computer
|
| PC | phase coherent
|
| PC | photoconductive
|
| PC | pitch circle
|
| PC | pitch control
|
| PC | plane change
|
| PC | printed circuit
|
| PC | program counter
|
| PC | project control
|
| PC | propulsive consumables
|
| PC | pulsating current
|
| PC&PM | program control and performance management
|
| PCA | performance coverage analyzer
|
| PCA | physical configuration audit
|
| PCA | pitch control assembly
|
| PCA | pneumatic control assembly
|
| PCA | point of closest approach
|
| PCA | polar cap absorption
|
| PCA | power conditioning assembly
|
| PCA | power controller assembly
|
| PCA | production configuration audit
|
| PCAM | punched-card accounting machine
|
| PCASS | program compliance assurance and status system
|
| PCB | Parts Control Board
|
| PCB | Program Change Board
|
| PCB | polyvinyl chloride-bromide (toxic transformer coolant)
|
| PCB | power circuit breaker
|
| PCB | power control box
|
| PCB | printed circuit board
|
| PCB | product configuration baseline
|
| PCC | pad control center
|
| PCC | payload control and checkout
|
| PCC | production control center
|
| PCCB | Program Change Control Board
|
| PCCB | Program Configuration Control Board
|
| PCCE | payload common communication equipment
|
| PCCM | program change control management
|
| PCCN | provisioning contract control number
|
| PCCP | preliminary contract change proposal
|
| PCD | procurement control document
|
| PCDU | payload command decoder unit
|
| PCE | power conditioning electronics
|
| PCE | power conditioning equipment
|
| PCF | payload control facility
|
| PCG | Parts Control Group
|
| PCG | phonocardiogram
|
| PCG | protein crystal growth
|
| PCI | peripheral controller interface
|
| PCI | procedure change instruction
|
| PCI | program-controlled input
|
| PCIL | pilot-controlled instrument landing
|
| PCIN | program change identification number
|
| PCK | payload command kit
|
| PCL | power control list
|
| PCL | primary coolant line
|
| PCL | primary coolant loop
|
| PCL | programming checklist
|
| PCM | parts control management
|
| PCM | photoelectric cell module
|
| PCM | pitch control motor
|
| PCM | plane change mechanism
|
| PCM | power control mission
|
| PCM | pulse code modulation
|
| PCM | pulse code modulator
|
| PCM | punch card machine
|
| PCMD | pulse code modulation, digital
|
| PCME | pulse code modulation event
|
| PCMMU | pulse code modulation master unit
|
| PCMP | Parts Control Management Program
|
| PCMR | probability of correct message receipt
|
| PCMS | pulse code modulation, shared
|
| PCMU | programmable control and monitor unit
|
| PCN | page change notice
|
| PCN | polyester-coated nylon
|
| PCN | program change notice
|
| PCN | program control number
|
| PCO | Procuring Contracting Office
|
| PCO | postcheckout
|
| PCO | postcheckout operations
|
| PCO | principal contracting officer
|
| PCO | procuring contracting officer
|
| PCO | program contracting officer
|
| PCO | program control officer
|
| PCO | program-controlled output
|
| PCOT | payload center operations team
|
| PCP | power control panel
|
| PCP | program change proposal
|
| PCP | project change proposal
|
| PCP | project cost plan
|
| PCPAS | Patriot command post automation system
|
| PCPL | proposed change-point line
|
| PCR | payload changeout room
|
| PCR | payload checkout room
|
| PCR | payload clean room
|
| PCR | power change request
|
| PCR | procedure change request
|
| PCR | program change request
|
| PCR | project control room
|
| PCR | publication change request
|
| PCRB | Program Change Review Board (Rockwell launch operations)
|
| PCRB | Project Change Review Board
|
| PCRS | payload cover removal system
|
| PCRS | performance and cost report system
|
| PCS | Pacific command ship
|
| PCS | payload checkout system
|
| PCS | payload control subsystem
|
| PCS | payload control supervisor
|
| PCS | performance control system
|
| PCS | planning and control system
|
| PCS | pointing control system
|
| PCS | power conversion system
|
| PCS | pressure control system
|
| PCS | primary control station
|
| PCS | primary coolant system
|
| PCS | probability of crew safety
|
| PCS | procedure completion sheet
|
| PCS | program control system
|
| PCS | project control system
|
| PCT | process control table
|
| PCTC | Payload Crew Training Complex
|
| PCTE | portable commercial test equipment
|
| PCTO | payload cost tradeoff optimization
|
| PCTR | pad connection terminal room
|
| PCU | payload checkout unit
|
| PCU | power condition unit
|
| PCU | power conditioning unit
|
| PCU | power control unit
|
| PCU | power conversion unit
|
| PCU | pressure control unit
|
| PCU | process control unit
|
| PCV | precheck verification
|
| PCV | purge control valve
|
| PCVB | pyro continuity verification box
|
| PCVL | pilot-controlled visual landing
|
| PCZ | physical control zone
|
| PD | dependency factor
|
| PD | pitch diameter
|
| PD | pitch down
|
| PD | policy directive
|
| PD | potential difference
|
| PD | preliminary design
|
| PD | probability of detection
|
| PD | procurement drawing
|
| PD | program development
|
| PD | program directive
|
| PD | project directive
|
| PD | project director
|
| PD | propellant dispersal
|
| PD&RS | payload deployment and retrieval subsystem
|
| PD/ID | probability of detection and identification
|
| PDA | parallel data adapter
|
| PDA | payload disconnect assembly
|
| PDA | percent defect allowed
|
| PDA | post-DDT&E assessment
|
| PDA | precision drive axis
|
| PDA | propellant drain area
|
| PDA | pump drive assembly
|
| PDAR | program description and requirements
|
| PDB | performance data book
|
| PDB | power distribution box
|
| PDB | project development brochure
|
| PDC | power distribution control
|
| PDC | predefined command
|
| PDC | procurement document change
|
| PDCM | product data control model
|
| PDCS | power distribution and control subsystem
|
| PDCU | power distribution and control unit
|
| PDD | payload description document
|
| PDD | program definition document
|
| PDD | program description document
|
| PDE | process directory entry
|
| PDES | product data exchange specification
|
| PDES | product data exchange standard
|
| PDF | pocket dosimeter FEMA
|
| PDF | probability density function
|
| PDGF | power data grapple fixture
|
| PDH | pocket dosimeter high
|
| PDI | payload data interleaver
|
| PDL | Product Development Laboratory
|
| PDL | pocket dosimeter low
|
| PDL | procedure distribution list
|
| PDL | program description language
|
| PDL | program design language
|
| PDLAC | preliminary dynamic loads analysis cycle
|
| PDLC | preliminary design load cycle
|
| PDM | payload deployment module
|
| PDM | probe data model
|
| PDM | processor data monitor
|
| PDM | pulse duration modulation
|
| PDOP | position dilution of precision
|
| PDP | payload data pack
|
| PDP | postinsertion deorbit preparation
|
| PDP | preliminary definition plan
|
| PDP | procurement data package
|
| PDP | program development plan
|
| PDP | project definition phase
|
| PDR | preliminary data requirements
|
| PDR | preliminary design review
|
| PDR | processed data recorder
|
| PDR | program design review
|
| PDR | program director's review
|
| PDRD | procurement data requirements description
|
| PDRD | procurement data requirements document
|
| PDRD | program data requirement document
|
| PDRD | program definition and requirements document
|
| PDRL | preliminary design requirements list
|
| PDRL | procurement data requirements list
|
| PDRM | payload deployment and retrieval mechanism
|
| PDRR | payload design requirements review
|
| PDRS | payload data and retrieval system
|
| PDRS | payload deployment and retrieval system
|
| PDRSS | payload deployment and retrieval system simulation
|
| PDRSS | payload deployment and retrieval system simulator
|
| PDS | package data system
|
| PDS | paradynamic sketch
|
| PDS | partitioned data set
|
| PDS | pathfinder demonstration satellite
|
| PDS | power distribution system
|
| PDS | problem data system
|
| PDS | product distribution subsystem
|
| PDS | production data sheet
|
| PDS | pyrotechnic device simulator
|
| PDT | payload data tape
|
| PDT | product development team
|
| PDU | pilot display unit
|
| PDU | power drive unit
|
| PDU | pressure distribution unit
|
| PDU | pulse detection unit
|
| PDV | premodulation processor, deep-space voice
|
| PDV | pressure disconnect valve
|
| PE | parity error
|
| PE | payload element
|
| PE | plasma effects
|
| PE | processing element
|
| PE | program element
|
| PE | program exception
|
| PE | project engineer
|
| PE | project engineering
|
| PEA | payload electronics assembly
|
| PEA | preliminary environmental analysis
|
| PEAP | personal egress air pack
|
| PEAR | program explanation analysis required
|
| PEB | Performance Evaluation Board
|
| PEB | program element breakdown
|
| PEC | proposal evaluation criteria
|
| PECP | preliminary engineering change proposal
|
| PEDB | payload engineering data base
|
| PEFU | payload effects follow-up study
|
| PEG | powered explicit guidance
|
| PEGASUS | preliminary expert ground analysis scheduler
|
| PEIR | project equipment inspection record
|
| PEM | plant engineering and maintenance
|
| PEO | Project Engineering Office
|
| PEP | Proposal Evaluation Panel
|
| PEP | peak envelope power
|
| PEP | plant engineering procedure
|
| PEP | power extension package
|
| PER | preliminary engineering report
|
| PERP | Parts and Equipment Reliability Program
|
| PERT | program evaluation and review technique
|
| PERT-NAP | PERT network automatic plotting
|
| PES | photoelectric scanner
|
| PET | performance enhancement team
|
| PET | performance/endurance tradeoff
|
| PET | phase elapsed time
|
| PET | production environmental test
|
| PET | program elapsed time
|
| PETA | performance evaluation and trend analysis
|
| PETN | petaerythrite tetranitrate
|
| PETS | Performance Endurance Tradeoff Study
|
| PF | parachute facility
|
| PF | payload forward
|
| PF | payload function
|
| PF | power factor
|
| PF | powered flight
|
| PF | prime function
|
| PF | probability of failure
|
| PF | pulse frequency
|
| PFA | Palmdale final assembly
|
| PFA | probability of false alarm
|
| PFB | payload feedback
|
| PFB | payload forward bus
|
| PFB | position feedback
|
| PFB | pressure-fed booster
|
| PFC | performance flight certification
|
| PFC | postflight checklist
|
| PFC | power factor corrector
|
| PFC | preliminary flight configuration
|
| PFCF | Payload Flight Control Facility
|
| PFCS | primary flight control system
|
| PFF | postfactory functional
|
| PFK | payload function key
|
| PFL | Propulsion Field Laboratory (Rocketdyne)
|
| PFL | primary Freon loop
|
| PFM | pulse frequency modulation
|
| PFN | pulse forming network
|
| PFP | powered flight program
|
| PFP | probability of performance failure
|
| PFP | program financial plan
|
| PFP | programmable function panel
|
| PFR | portable foot restraint
|
| PFRT | preliminary flight rating test
|
| PFRX | preflight relmat (X-l, 2, 3 . . . 9 or A, B, C . . . Z)
|
| PFS | percent full scale
|
| PFS | primary flight software
|
| PFS | primary flight system
|
| PFT | postflight testing
|
| PFTA | payload flight test article
|
| PFV | probability of failure of vehicle
|
| PG | power generation
|
| PG | pressure gauge
|
| PGA | power generating assembly
|
| PGA | pressure garment assembly
|
| PGA | programmable gain amplifier
|
| PGC | plant growth chamber
|
| PGD&CS | power generation, distribution, and control subsystem
|
| PGHM | payload ground handling mechanism
|
| PGNCS | primary guidance, navigation, and control system
|
| PGOC | Payload Ground Operations Contract (contractor)
|
| PGOR | payload ground operations requirement
|
| PGORS | Payload Ground Operations Requirements Study
|
| PGR | planning ground rule (Spacelab)
|
| PGS | power generation system (subsystem)
|
| PGSC | payload and general-support computer
|
| PGSE | payload ground support equipment
|
| PGU | plant growth unit
|
| PGU | power generating unit
|
| PGWG | Particles and Gases Working Group
|
| PH | personal hygiene
|
| PHA | preliminary hazard analysis
|
| PHD | payload handling device
|
| PHF | parts history file
|
| PHF | payload handling fixture
|
| PHF | personal hygiene facility
|
| PHK | personal hygiene kit
|
| PHMC | probe heater motor controller
|
| PHP | payload handling panel
|
| PHP | planetary horizontal platform
|
| PHRR | payload high-rate recorder
|
| PHS | payload handling station
|
| PHS | payload handling system
|
| PHS&T | packaging, handling, storage, and transportation
|
| PHSF | Payload Hazardous Servicing Facility
|
| PHST | packaging, handling, storage, and transportation
|
| PHTR | packaging, handling, and transportation record
|
| PI | payload interrogator
|
| PI | preliminary investigation
|
| PI | principal investigator
|
| PI | procurement item
|
| PI | program introduction
|
| PI&A | personnel identification and authentication
|
| PIA | payload interface adapter
|
| PIA | preinspection acceptance
|
| PIA | preinstallation acceptance
|
| PIA | project impact analysis
|
| PIAPACS | psychophysical information acquisition, pontrol system
|
| PIAR | project impact analysis report
|
| PIB | Pyrotechnic Installation Building
|
| PIC | Payload Integration Center
|
| PIC | Payload Integration Committee
|
| PIC | performance indicator chart
|
| PIC | preinstallation checkout
|
| PIC | programmable interval clock
|
| PIC | pyrotechnic initiator circuit
|
| PIC | pyrotechnic initiator controller
|
| PICC | payload interface control computer
|
| PICP | program interface control plan
|
| PICRS | program information control and retrieval system
|
| PICRS | program information coordination and review service
|
| PICS | photo index and cataloging system
|
| PICS | predefined input control sequence
|
| PID | prime item development
|
| PID | program information document
|
| PID | program introduction document
|
| PID | proportional-integral-derivative
|
| PIDA | payload installation and deployment aid
|
| PIDP | product initialization data pack
|
| PIDS | portable image display system
|
| PIE | payload integration equipment
|
| PIE | payload interface engineer
|
| PIECP | preliminary impact engineering change proposal
|
| PIF | payload integration facility
|
| PIGA | pendulous integrating gyroscopic accelerometer
|
| PII | procurement instrument identification
|
| PIIN | procurement instrument identification number
|
| PILOT | program integration and loading tool
|
| PILS | payload integration library system
|
| PILS | payload interactive library system
|
| PIM | payload integration manager
|
| PIM | planning interchange meeting
|
| PIM | pulse interval modulation
|
| PIMR | program integration management review
|
| PIN | personal identification number
|
| PINCH | payload integration nominal cost hardware
|
| PIND | particle impact and noise detection
|
| PIND | particle impact noise detection
|
| PIO | Program Integration Office
|
| PIO | Public Information Office (MSFC)
|
| PIO | pilot-induced oscillation
|
| PIO | provisioned item order
|
| PIOL | periodic input/output link
|
| PIOP | payload integration operations plan
|
| PIP | payload integration plan
|
| PIP | payload interface plan
|
| PIP | personnel incentive program
|
| PIP | plant instrumentation program
|
| PIP | production instrumentation package
|
| PIP | project implementation plan
|
| PIP | pyro interception plug
|
| PIPA | pulse-integrating pendulum accelerometer
|
| PIPA | pulse-integrating pendulum assembly
|
| PIPA | pulsed integrating pendulous accelerometer
|
| PIR | programming information requirement
|
| PIRCS | payload interactive requirements collection system
|
| PIRD | project instrumentation requirement document
|
| PIRN | preliminary interface revision notice
|
| PIRN | proposed interface revision notice
|
| PIT | passive intermediate tracker
|
| PIT | payload integration thermal
|
| PIT | preinstallation test
|
| PITG | Payload Integration Task Group
|
| PITS | payload integration test set
|
| PITS | payload interface test system
|
| PIU | power interface unit
|
| PIU | pyrotechnic initiator unit
|
| PIV | peak inverse voltage
|
| PIVR | payload interface verification requirement
|
| PIVS | payload integration and verification simulator
|
| PIVS | payload interface verification summary
|
| PK | probability of kill
|
| PKD | programmable keyboard and display
|
| PKM | perigee kick motor
|
| PL | parting line
|
| PL | payload
|
| PL | postlanding
|
| PL | power level
|
| PL | prelaunch
|
| PL | private line
|
| PL | propellant loading
|
| PLA | parachute location aid
|
| PLACE | position location aircraft communications equipment
|
| PLAN | payload activity network
|
| PLB | payload bay
|
| PLBD | payload bay door
|
| PLC | power line carrier
|
| PLC | pressurized logistics carrier
|
| PLC | programmable logic controller
|
| PLC | propellant loading console
|
| PLCC | Payload Launch Control Center
|
| PLCI | pressurized logistics carrier interface
|
| PLD | program listing document
|
| PLDF | payload data file
|
| PLH | payload handling
|
| PLHX | payload heat exchanger
|
| PLI | propellant-level indicator
|
| PLIC | payload intelligent controller
|
| PLIM | payload installation mechanism
|
| PLIM | propellant linear insulation matrix
|
| PLIMHR | payload integration management hardware review
|
| PLIMR | payload integration management review
|
| PLINS | payload integration schedule
|
| PLISN | provisioning list item sequence number
|
| PLL | phase lock loop
|
| PLM | payload management
|
| PLM | payload monitoring
|
| PLMS | program logistics master schedule
|
| PLN | program logic network
|
| PLOS | probe line of sight
|
| PLPS | propellant loading and pressurization system
|
| PLRV | payload launch readiness verification
|
| PLS | payload simulator
|
| PLS | payload system
|
| PLS | personnel launch system
|
| PLS | postlanding and safing
|
| PLS | primary landing site
|
| PLS | propellant loading system
|
| PLSL | propellants and life support laboratory
|
| PLSP | payload signal processor
|
| PLSR | postlaunch service review
|
| PLSS | portable life support system
|
| PLT | production lead time
|
| PLTS | precision laser tracking system
|
| PLU | position location uncertainty
|
| PLV | payload vehicle
|
| PLV | postlanding valve
|
| PLV | postlanding ventilation
|
| PLVC | postlanding vent control
|
| PM | Policy Manual
|
| PM | Procurement Management
|
| PM | payload management
|
| PM | payload midbody
|
| PM | payload module
|
| PM | performance management
|
| PM | performance monitor
|
| PM | permanent magnet
|
| PM | phase modulation
|
| PM | phase monitor
|
| PM | preventive maintenance
|
| PM | program management
|
| PM | program manager
|
| PM | project manager
|
| PM | propulsion module
|
| PM | pulse modulation
|
| PM&P | parts, materials, and processes
|
| PMA | performance monitor annunciator
|
| PMA | preliminary mission analysis
|
| PMAC | portable multipurpose applications console
|
| PMAD | performance monitor annunciation driver
|
| PMAD | power management and distribution
|
| PMALS | preliminary miniature air-launched system
|
| PMAP | performance monitor annunciation panel
|
| PMAT | page map address table
|
| PMATS | performance managing and tracking system
|
| PMB | performance management baseline
|
| PMB | performance measurement baseline
|
| PMC | payload monitoring control
|
| PMC | permanently manned capability
|
| PMC | plutonia-molybdenum cermet
|
| PMC | procurement method code
|
| PMD | Palmdale (TACAN station)
|
| PMD | power management and distribution
|
| PMD | propellant management device
|
| PMDM | payload multiplexer/demultiplexer
|
| PMEL | Precision Measurements Equipment Laboratory
|
| PMF | performance monitor function
|
| PMF | perigee motor firing
|
| PMF | program management facility
|
| PMG | Parts Management Group
|
| PMHL | preferred measurement hardware list
|
| PMI | preventive maintenance instruction
|
| PMI | principal maintenance inspector
|
| PMIA | parallel multiplexer interface adapter
|
| PMIR | program manager's integration review
|
| PMIS | personal management information system
|
| PML | preliminary materials list
|
| PMM | Property Management Manual
|
| PMM | planetary mission module
|
| PMMD | programmable magnetic momentum dump
|
| PMN | program management network
|
| PMO | Program Management Office
|
| PMO | program management organization
|
| PMOM | Performance Management Operating Manual
|
| PMOMI | preventive maintenance OMI
|
| PMON | performance management operations network
|
| PMP | parts, materials, and processes
|
| PMP | performance management package
|
| PMP | prelaunch monitor program
|
| PMP | preliminary mission plan
|
| PMP | premodulation processor
|
| PMP | program management plan
|
| PMPAG | PMP Advisory Group
|
| PMPCB | PMP Change Board
|
| PMPCB | Parts, Materials, and Processes Control Board
|
| PMPL | preferred mechanical parts list
|
| PMPS | program management performance system
|
| PMR | Pacific Missile Range
|
| PMR | parts material request
|
| PMR | payload manifest review
|
| PMR | payload manifesting review
|
| PMR | payload mixing review
|
| PMR | performance measurement report
|
| PMR | program management review
|
| PMR | program manager's review
|
| PMRB | Primary Material Review Board
|
| PMRR | premanufacturing readiness review
|
| PMS | payload mounting structure
|
| PMS | performance management system
|
| PMS | performance measurement system
|
| PMS | performance monitoring system
|
| PMS | power management system
|
| PMS | program management system
|
| PMS | program master schedule
|
| PMT | planning and management team
|
| PMT | production monitoring test
|
| PMU | plaster mockup
|
| PMU | pressure measuring unit
|
| PMV | permanent manned vehicle
|
| PMWO | preventive maintenance work order
|
| PMYK | program manager YK (AF)
|
| PN | part number
|
| PN | pseudonoise
|
| PNA | plan of action
|
| PND | passive nutation damper
|
| PND | premodulation processor, near-Earth data
|
| PNP | prenegotiation position
|
| PNS | parabolized Navier-Stokes
|
| PNW | program notes and waivers
|
| PO | postorbit
|
| PO | power on
|
| PO | power oscillator
|
| PO | project office
|
| PO | purchase order
|
| POA | plan of action
|
| POC | Payload Operations Center
|
| POC | point of contact
|
| POC | proof of concept
|
| POC | purchase order closeout
|
| POCC | Payload Operations Control Center
|
| POCN | purchase order change notice
|
| POD | Payload Operations Division (JSC)
|
| POD | parameter override display
|
| POD | precision orbit determination
|
| POD | production operations directive
|
| PODTG | Precision Orbit Determination Task Group
|
| POE | pilot operational equipment
|
| POE | port of embarkation
|
| POGO | Polar Orbiting Geophysical Observatory
|
| POGS | polar-orbiting geomagnetic survey
|
| POI | power-on/off interrupt
|
| POI | product of inertia
|
| POI | program of instruction
|
| POIC | Payload Operations Integration Center
|
| POID | power-on/off interrupt delay
|
| POL | petroleum, oil, and lubricants
|
| POLAR | production order location and record
|
| POLAR | production order location and reporting
|
| POM | pallet-only mode
|
| POM | printer output microfilm
|
| POMS | probability of mission success
|
| POMT | planning operations management team
|
| POP | perpendicular to orbit plane
|
| POP | polar-orbiting platform
|
| POP | preburner oxidizer pump
|
| POP | preflight operations procedure
|
| POP | prelaunch operations plan
|
| POP | program operating plan
|
| POPU | push-over/pull-up
|
| POR | point of resolution
|
| POR | power-on reset
|
| POR | purchase order request
|
| PORB | Production Operations Review Board
|
| PORCN | production order records change notice
|
| PORD | performance and operations requirements document
|
| PORR | preliminary operations requirements review
|
| POS | portable oxygen system
|
| POS | probability of sufficiency
|
| POST | Program To Optimize Simulated Trajectories
|
| POST | payload operations support team
|
| POT | proof of technology
|
| POT | proximity operations trainer
|
| POV | peak operating voltage
|
| POV | pneumatically operated valve
|
| POV | proximity operations vehicle
|
| POWG | Payload Operations Working Group
|
| POWG | Payload Orbital Working Group
|
| POWS | project operating work statement
|
| PP | partial pressure
|
| PP | peak to peak
|
| PP | planning package
|
| PP | power plant
|
| PP | premodulation processor
|
| PP | push-pull
|
| PP&C | program planning and control
|
| PP&C | project planning and control
|
| PP&LS | production planning and logistics support
|
| PP&WC | process planning and work control
|
| PPA | power pitch-around
|
| PPB | program performance baseline
|
| PPB | provisioning parts breakdown
|
| PPC | Payload Preparation Complex
|
| PPC | phased provisioning code
|
| PPC | preprocessing center
|
| PPCO2 | CO2 partial pressure
|
| PPCP | postprocessing computer program
|
| PPCU | partial payload checkout unit
|
| PPD | power pitch-down
|
| PPD | predefined process diagram
|
| PPE | phase partitioning experiment
|
| PPE | premodulation processor equipment
|
| PPEP | plasma physics and environmental perturbation
|
| PPF | payload processing facility (USAF)
|
| PPF | primary processing facility
|
| PPI | plan position indicator
|
| PPI | proposal preparation instruction
|
| PPI | pulse position indicator
|
| PPIL | priced provisioned item list
|
| PPL | planning parts list
|
| PPL | preferred parts list
|
| PPL | priced parts list
|
| PPL | production payload
|
| PPL | program parts list
|
| PPL | provisioning parts list
|
| PPM | payload project manager
|
| PPM | pulse position modulation
|
| PPME | Pacific plate motion experiment
|
| PPMS | project performance measurement system
|
| PPO | preferred provider organization
|
| PPO2 | oxygen partial pressure
|
| PPP | payload patch panel
|
| PPP | peak pulse power
|
| PPQIC | Productivity and Product Quality Improvement Council
|
| PPR | payload preparation room
|
| PPR | program planning review
|
| PPRB | Preliminary Proposal Review Board
|
| PPS | partial-pressure suit
|
| PPS | payload pointing system
|
| PPS | pneumatic power subsystem
|
| PPS | primary propulsion system
|
| PPS | printer/plotter system
|
| PPS | product performance system
|
| PPS | provisioning performance schedule
|
| PPS | pulses per second
|
| PPSL | program parts selection list
|
| PPT | prelaunch package test
|
| PQA | procurement quality assurance
|
| PQC | Product Quality Council
|
| PQC | procurement quality control
|
| PQE | procurement quality engineering
|
| PQGS | propellant quantity gauging system
|
| PQIC | Product Quality Improvement Council
|
| PQIC | Productivity and Quality Improvement Council
|
| PQT | preliminary qualification test
|
| PR | partially reusable
|
| PR | performance report
|
| PR | position record
|
| PR | pressure ratio
|
| PR | pressure regulator
|
| PR | problem report
|
| PR | procurement regulation
|
| PR | program requirement
|
| PR | pulse rate
|
| PR | purchase request
|
| PRA | precession axis
|
| PRACA | problem reporting and corrective action
|
| PRACA | problem reporting, analysis, and corrective action
|
| PRB | Panel Review Board
|
| PRB | Parachute Refurbishment Building
|
| PRB | Paso Robles (TACAN station)
|
| PRB | Program Review Board
|
| PRB | program requirements baseline
|
| PRCB | Program Requirements Change Board
|
| PRCB | Program Requirements Control Board
|
| PRCB | Program Review Control Board
|
| PRCBD | Program Requirements Control Board directive
|
| PRCS | primary reaction control system
|
| PRD | payload requirements document
|
| PRD | personal radiation dosimeter
|
| PRD | preliminary requirements document
|
| PRD | procurement regulation directive
|
| PRD | procurement requirements document
|
| PRD | program requirements document
|
| PRD | project requirements document
|
| PRDA | program research and development announcement
|
| PRE | personal rescue enclosure
|
| PRE | power regulation equipment
|
| PRF | pulse repetition frequency
|
| PRIS | payload remote integration system
|
| PRL | page revision log
|
| PRL | payload retention latch
|
| PRL | priority rate limiting
|
| PRLA | payload retention latch actuator
|
| PRLA | payload retention latch assembly
|
| PRM | payload retention mechanism
|
| PRM | performance and reliability module
|
| PRM | pocket radiation meter
|
| PRM | posigrade rocket motor
|
| PRM | pulse rate modulation
|
| PRMO | producibility, reliability, maintainability, and
|
| PRN | program release notice
|
| PRN | pseudorandom noise
|
| PRN | pulse ranging navigation
|
| PRO | planning resident order
|
| PROFS | professional office systems
|
| PROM | programmable read-only memory
|
| PROMIS | project-oriented management information system
|
| PRP | personnel reliability program
|
| PRP | program redefinition proposal
|
| PRPS | programming requirements process specification
|
| PRR | parts replacement request
|
| PRR | parts rework or replacement
|
| PRR | preflight readiness review
|
| PRR | preliminary requirements review
|
| PRR | production readiness review
|
| PRR | program requirements review
|
| PRR | project requirements review
|
| PRR | pulse repetition rate
|
| PRRB | Payload Requirements Review Board
|
| PRS | payload retention system (subsystem)
|
| PRS | personal rescue system
|
| PRS | personnel rescue service
|
| PRS | power reactant subsystem
|
| PRS | precision ranging system
|
| PRS | preliminary requirements specification
|
| PRS | primary recovery site
|
| PRS | primary rescue site
|
| PRS | provisioning requirements statement
|
| PRSA | power reactant storage assembly
|
| PRSD | power reactant storage and distribution
|
| PRSDS | power reactant storage and distribution system
|
| PRSS | problem report squawk sheet
|
| PRT | pulse repetition time
|
| PRTLS | powered return to launch site
|
| PRV | pressure-reducing valve
|
| PS | parachute system (subsystem)
|
| PS | payload specialist
|
| PS | payload station
|
| PS | payload support
|
| PS | pointing subsystem
|
| PS | power supply
|
| PS | pressure switch
|
| PS | primary structure
|
| PS | prime select
|
| PS | probability of success
|
| PS | production sheet
|
| PSA | payload service area
|
| PSA | payload support avionics
|
| PSA | postsleep activity
|
| PSA | power and servoassembly
|
| PSA | power servoamplifier
|
| PSA | power switching assembly
|
| PSA | preferred storage area
|
| PSA | presleep activity
|
| PSA | pressure switch assembly
|
| PSA | producibility, supportability, and affordability
|
| PSAC | Presidential Scientific Advisory Committee
|
| PSBLS | permanent space-based logistics system
|
| PSC | Program Support Center
|
| PSC | parallel switch control
|
| PSC | payload support contractor
|
| PSC | planetary spacecraft
|
| PSC | program schedule chart
|
| PSC | program support contractor
|
| PSC | provide station control
|
| PSCL | Propellant Systems Cleaning Laboratory
|
| PSCN | preliminary specification change notice
|
| PSCN | program support communications network
|
| PSCU | power supply control unit
|
| PSD | Power Systems Division (division of LTV)
|
| PSD | phase-sensitive demodulator
|
| PSD | power spectral density
|
| PSD | program support document
|
| PSDF | Propulsion System Development Facility
|
| PSDP | payload station distribution panel
|
| PSDP | payload system distribution panel
|
| PSDR | planning and scheduling document record
|
| PSDU | power and signal distribution unit
|
| PSE | payload service equipment
|
| PSE | payload support engineer
|
| PSE | payload support equipment
|
| PSE | peculiar support equipment
|
| PSF | point spread function
|
| PSF | probability of stress failure
|
| PSF | processing and staging facility (SRB)
|
| PSF | processing and storage facility (ET)
|
| PSF | propellant servicing facility
|
| PSG | Power Subsystem Group
|
| PSI | power static inverter
|
| PSI/SCI | preshipment inspection and seller configuration
|
| PSIG | Propulsion Systems Integration Group
|
| PSIU | power and signal interface unit
|
| PSK | phase shift key
|
| PSL | Program Support Library
|
| PSL | pressure seal
|
| PSL | program statement language
|
| PSM | phase-sensitive modulation
|
| PSM | power storage module
|
| PSM | product support manager
|
| PSM | propellant storage module
|
| PSM | pyro substitute monitor
|
| PSN | program schedule network
|
| PSO | pad safety officer
|
| PSOC | preliminary SAC operational concept
|
| PSOC | preliminary system operational concept
|
| PSOP | peak side on pressure
|
| PSP | payload signal processor
|
| PSP | payload specialist panel
|
| PSP | payload support plan
|
| PSP | planetary scan platform
|
| PSP | planetary scan probe
|
| PSP | positive static pressure
|
| PSP | program support plan
|
| PSP | programmable signal processor
|
| PSP | project schedule plan
|
| PSPA | pressure static probe assembly
|
| PSPL | priced spare parts list
|
| PSQ | personnel security questionnaire
|
| PSR | payload safety review
|
| PSR | performance status report
|
| PSR | problem status report
|
| PSR | production safety review
|
| PSR | program status review
|
| PSR | project safety review
|
| PSRD | program support requirements document
|
| PSRR | preliminary systems requirements review
|
| PSRS | plant service recall system
|
| PSS | pad safety supervisor
|
| PSS | payload specialist station
|
| PSS | payload status system
|
| PSS | payload support system
|
| PSS | performance summary system
|
| PSS | planning and scheduling system
|
| PSS | portable survival shelter
|
| PSS | propellant supply subsystem
|
| PSS | propulsion subsystem
|
| PSS | propulsion support system
|
| PSSP | payload specialist station panel
|
| PSSR | performance status summary report
|
| PSSR | performance status summary review
|
| PSSS | packet scan status stack
|
| PSST | periodic significant scheduled task
|
| PSSU | patch survey and switching unit
|
| PST | point source transmission
|
| PST | point source transmittance
|
| PST | preliminary systems test
|
| PSTL | pressure model static and transient launch configuration
|
| PSU | power switching unit
|
| PSV | photographic spatial volume
|
| PSV | planetary space vehicle
|
| PSV | probability of vehicle success
|
| PSW | program status word
|
| PT | Advanced Planning and Technology Office (KSC)
|
| PT | paper tape
|
| PT | part task
|
| PT | pitch trim
|
| PT | pneumatic tube
|
| PT | point of tangency
|
| PT | power transfer
|
| PT | pressure transducer
|
| PT | primary target
|
| PT | product team
|
| PT | productivity team
|
| PT | propulsion test
|
| PTA | pointing and tracking assembly
|
| PTA | posttest analysis
|
| PTA | property transfer authorization
|
| PTA | propulsion test article
|
| PTAS | performance trend analysis system
|
| PTB | payload timing buffer
|
| PTC | passive thermal conditioning
|
| PTC | passive thermal control
|
| PTC | portable temperature controller
|
| PTCC | Propulsion Test Control Center
|
| PTCR | pad terminal connection room
|
| PTCS | passive thermal control system
|
| PTCS | planning, training, and checkout system
|
| PTCS | pointing, tracking, and control system
|
| PTCS | propellant tanking computer system
|
| PTD | preliminary technical directive
|
| PTD | provisioning technical documentation
|
| PTDDSS | PTD data selection sheet
|
| PTI | preliminary test information
|
| PTI | programmed test input
|
| PTIS | programmed test input system
|
| PTL | potential termination liability
|
| PTM | pulse time modulation
|
| PTO | power test operation
|
| PTR | preliminary test report
|
| PTR | program technical review
|
| PTR | program trouble report
|
| PTS | payload test set
|
| PTS | payload transportation system
|
| PTSF | payload trunnion support fixture
|
| PTT | push to talk
|
| PTU | pan and tilt unit
|
| PTV | pathfinder test vehicle
|
| PU | pickup
|
| PU | power unit
|
| PU | production unit
|
| PU | propellant unit
|
| PU | propellant utilization
|
| PUCS | propellant utilization control system
|
| PUGS | propellant utilization and gauging system
|
| PUV | propellant utilization valve
|
| PV | photovoltaic
|
| PV&D | purge, vent, and drain
|
| PV/PS | pressure vessel and pressure system
|
| PVA | preburner valve actuator
|
| PVA | propellant valve actuator
|
| PVC | polyvinyl chloride
|
| PVC | pressure-volume compensated
|
| PVD | passive vibration damping
|
| PVD | purge, vent, and drain
|
| PVDS | propellant vent and drain system
|
| PVED | Propulsion and Vehicle Engineering Division
|
| PVLA | purchase versus lease analysis
|
| PVR | precision voltage reference
|
| PVRD | purge, vent, repressurize, and drain
|
| PVT | passive visible tracker
|
| PVT | preflight verification test
|
| PVT | pressure, volume, and temperature
|
| PVT | pyrotechnic verification test
|
| PVTCS | photovoltaic thermal control system
|
| PVTOS | physical vapor transport organic solids
|
| PVWA | planned value of work accomplished
|
| PVWS | planned value of work scheduled
|
| PW | plan washer
|
| PW | printed wiring
|
| PW | pulse width
|
| PWA | Pratt and Whitney Aircraft
|
| PWA | printed wiring assembly
|
| PWA | private write area
|
| PWA | product work authorization
|
| PWB | printed wire board
|
| PWB | printed wiring board
|
| PWBS | program work breakdown structure
|
| PWD | proceed with design
|
| PWDS | protected wire distribution system
|
| PWM | pulse width modulation
|
| PWMD | printed wiring master drawing
|
| PWS | pricing work statement
|
| PWT | propulsion wind tunnel
|
| PWW | Project West Wing
|
| PY | program year
|
| PYR | pyro release
|
| PZT | lead, zirconate, titanate
|
| Pave | Paws ground radar for SLBM detection
|
| PbS | lead sulfide
|
| Pc | chamber pressure
|
| Pc | complexity factor
|
| Pd | dependency factor
|
| PdSi | palladium silicide
|
| Pm | maturity factor
|
| Pms | probability of mission success
|
| PreSOP | Preliminary Sizing Optimization Program
|
| Ps | probability of survival
|
| PtSi | platinum silicide
|
| pH | hydrogen-ion concentration (alkalinity)
|
| pixel | picture element
|
| ppb | parts per billion
|
| pph | pounds per hour
|
| ppm | parts per million
|
| ppm | parts per minute
|
| ppm | pulses per minute
|
| pps | pulses per second
|
| psf | pounds per square foot
|
| psi | pounds per square inch
|
| psia | pounds per square inch absolute
|
| psid | pounds per square inch differential
|
| psig | pounds per square inch gauge
|
| psis | pounds per square inch scaled
|