Acronyms & abbreviations - P

P/L

PayLoad

P/O

Purchase Order

PA

Payment Appropriations
Product Assurance

PA&SPA/S

Product Assurance & Safety

PABX

Private Automatic Branch Exchange

PAC

Packet Assembly Control

PAD

Planning Assumptions Document

PAE

Processing and Archiving Element

PAF

Processing and Archiving Facility

PAG

Project Advisory Group

PAH

Payload Accommodation Handbook
Polycyclic Aromatic Hydrocarbons

PAR

Product Assurance Representative
Photosynthetic Active Radiation

PAS

Payload Analysis System

PAT

Pet Access Table

PATP

Preliminary Authorisation To Proceed

PAV

Planetary Ascent Vehicle

PAW

Physics Analysis Workstation

PB

Programme Board

PB-EO

Programme Board - Earth Observation

PBMG

Program Board - MicroGravity

PBX

Private Branch eXchange

PC

Personal Computer

PCB

Printed Circuit Board

PCCF

Packet Command Characteristics File

PCDF

Protein Crystallization Diagnostics Facility

PCDU 

Power Control and Distribution Unit

PCE

Power Conditioning Electronics

PCF

Payment Clearance Form
Product Control Facility

PCFOV

Partially Coded Field Of View

PCMCIA

Personal Computer Memory Card Interface Adapter

PCO

Professional Conference Organiser

PCS

Packet Check Sequence
Physics of Colloids in Space

PCSA

Physics of Colloids in Space Apparatus

PCSI

Pacific Communications Sciences Inc

PCT

Packet Content Table

PCU

Power Conditioning Unit
Power Control Unit

PCWG

Payload Calibration Working Group

PD

Payload Data

PDA

Personal Digital Assistant

PDCA

Plan-Do-Check-Act

PDD

Product Definition Document

PDF

Portable Document Format

PDP

Pipeline Data Products

PDR

Preliminary Design Review

PDRD

Performance and Design Requirements Document

PDS

Payload Data Segment

PDU

Power Distribution Unit

PEC

Packet Error Control

PEM

Payload Electronics Module
Polymer Electrolyte Membrane

PEMP

Phase E Management Plan

PET

Parameter Extraction Table

PEV

Pre-Execution Validation

PF

Parabolic Flight

PFE

Parabolic Flight Experiment

PFM

Proto Flight Model

PFMI

Pore Formation and Mobility Investigation

PFR

Post Flight Review

PFS

Pulmonary Function System

PGB

Portable Glove Box

pH

power (negative 10-base log) of the Hydrogen ion concentration (acidity)

PHARAO

Projet d'Horloge Atomique par Refroidissement d'Atomes en Orbite

PI

Principal Investigator

PID

Particle Injection Device

PIM

Passive Inter-Modulation
Payload Integration Manager

PIP

Project Implementation Plan

PIRN

Preliminary Interface Revision Notice

PIV

Particle Image Velocimetry

PKE

Plasma Kristall Experiment

PL

PayLoad

PLD

Pulsed Laser Deposition

PLM 

PayLoad Module

PLOP

Physical Link Operation Procedure

PLP

Pre-Launch Phase

PLT

Parameter Limits Table

PM

Project Manager
Progress Meeting

PMF

Packet Mnemonic File

PMIS

Project Management Information System

PMP

Project Management Plan

PMR

Project Management Requirements

PMS

Payload Monitoring Subsystem

PMT

Photo-Multiplier Tube

PMU

Payload Monitoring Unit

PO

Purchase Order

POIC

Payload Operations and Integration Centre

POLINSAR

POLarmetric and Interferometric SAR mission and applications study

POMS

Purchase Order Management System

POP

Point Of Presence

PortEER

Portable Electro-Encephalogram Recorder

PP

Procurement Proposal
Procurement Process

PPDU

Payload Power Distribution Unit

PPF

Printout Proformae definition File

PPL

Parameter Processing List

PPP

Point-to-Point Protocol

PPS

Pipeline Processing Subsystem

PPU

Powerful Processor Unit

PR

Pro Rata
Public Relation

PRF 

Purchase Request Form

PROBA

Project for On-Board Autonomy

PROMISS

PROtein Microscope for the ISS

PRR

Preliminary Requirements Review

PSF

Pass Schedule File

PSI

Packet Switching Interface

PSK

Phase Shift Keying

PSLA

Point Source Location Accuracy

PSLV

Polar Satellite Launch Vehicle

PSM

telecommand sequence Parameter Set Mapping

PSR

Project Support Room
Physical Science Research facility

PSS

Portable Satellite Simulator

PSTN

Public Switched Telephone Network

PSU

Power Supply Unit

PSWG

Physical Science Working Group

PT

Product Tree

PTR

Post Test Review board

PTT

Parameter Text Table

PTV

Particle Tracking Velocimetry

PU

Physical Unit
Panel Unit
Prototype Unit

PUP

Partner Utilisation Plan

PUS

Packet Utilisation Standard

PUSV

Packet Utilisation Standard Validation

PV

Pyrotechnic Valves

PVC

Permanent Virtual Circuit

PVD

Physical Vapour Deposition

PVR

Packet Verification Report

PVS

Parameter Value Set

PVT

Parameter Value Table

PXP

Project XMM Payload

Last update: 13 November 2008

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