# Acronyms and Abbreviations

> A&I Align and Integrate (process)
>
> A/D analog-to-digital
>
> AA Associate Administrator
>
> AA atomic absorption
>
> AACS attitude and articulation control system
>
> AAMS Automated Anomaly Management System
>
> ACE Advanced Composition Explorer
>
> ACM Association for Computing Machinery
>
> ACRIMSAT Active Cavity Radiometer Irradiance Monitor Satellite
>
> ACS attitude control subsystem
>
> ACT Advanced Component Technology
>
> ACWP actual cost of work performed
>
> ADACS attitude determination and control subsystem
>
> ADC allocated direct costs
>
> analog-to-digital converter
>
> ADEOS Advanced Earth Observation Satellite
>
> ADP administrative data processing (equipment)
>
> ADT abstract data type
>
> AE Office of Chief Engineer, NASA Code AE
>
> AF Air Force
>
> AFM atomic-force microscopy
>
> AFPRO Air Force Plant Representatives Office
>
> AFS Andrew File System^©^
>
> AFT allowable flight temperature
>
> AHSE assembly, handling, and support equipment
>
> AIA analog interface ASIC
>
> AIDS assembly and inspection data sheet
>
> assembly instruction data sheet
>
> AIM ASAS interface module
>
> AIRS Atmospheric Infrared Sounder
>
> AirSAR Airborne Synthetic Aperture Radar
>
> AIST Advanced Information Systems Technology
>
> aka also known as
>
> ALAP as late as possible
>
> AMG Activity Management Gateway
>
> AMMOS Advanced Multimission Operations System
>
> AMS Assure Mission Success (process)
>
> AMTEC alkali metal thermal-to-electric converter
>
> ANDP Acquire, Nurture, and Deploy People (domain)
>
> ANSI American National Standards Institute
>
> AO announcement of opportunity
>
> AOWP actual obligations of work performed
>
> APA allowance for Project adjustment
>
> APD Astronomy and Physics Directorate (7X)
>
> APDTICM advanced Project design Team X instrument cost model
>
> APGEN Applications Generator
>
> API Application Program Interface
>
> APM Assistant Program Manager
>
> APMC Agency (NASA) Program Management Council
>
> APPL (NASA) Academy of Program and Project Leadership
>
> APS active pixel sensor
>
> APT academic part time
>
> Align Products and Technology (process/policy)
>
> APXS Alpha Proton X-Ray Spectrometer
>
> AR Anomaly Report
>
> ARC Ames Research Center
>
> ARR ATLO (Assembly, Test, and Launch Operations) Readiness Review
>
> ASAP as soon as possible
>
> ASAS All Source Analysis System
>
> ASIC application-specific integrated circuit
>
> ASIS Acquisition Support and Information Section
>
> ASME American Society of Mechanical Engineers
>
> ASTER Advanced Spaceborne Thermal Emission and Reflection Radiometer
>
> ATHENA Advanced Thermal Hydraulic Energy Network Analyzer
>
> ATLO Assembly, Test, and Launch Operations
>
> ATP acceptance test plan
>
> authority to proceed
>
> ATR acceptance test report
>
> AU astronomical unit (\~1.496 × 10^8^ km)
>
> B&P bid and proposal
>
> BAA Broad Agency/Area Announcement
>
> BAC budget at completion
>
> BB breadboard
>
> bulletin board
>
> BCE backup control electronics
>
> BCRTM bus-controller/remote terminal/monitor
>
> BCS battery control slice
>
> BCWP budgeted cost of work performed
>
> BCWS budgeted cost of work scheduled
>
> BDE budgeted direct effort
>
> Oracle budgeting tool
>
> BDFS baseline design functional specification
>
> BEEM ballistic electron emission microscopy
>
> BFC better, faster, cheaper
>
> BGA ball grid array
>
> BHR bihemispherical reflectance
>
> BMC Business Management Council
>
> BOE basis of estimate
>
> BOM bill of material
>
> BOSS Business Operations Support System
>
> BOW bill of work
>
> BOWS budget obligations of work scheduled
>
> BPA burden and program account
>
> BPC binary phase--coded
>
> BSFS baseline system functional specification
>
> BTE bench test equipment
>
> BTR Budget Tracking Report
>
> BW bandwidth
>
> BWG beam waveguide
>
> C&DH command and data handling system
>
> CAAS Contract Administration and Audit Service
>
> CAC Compensation Advisory Council
>
> CAD computer-aided design
>
> CADD computer-aided design and drafting
>
> CAE computer-aided engineering
>
> Caltech California Institute of Technology
>
> CAM Cost Account Manager
>
> CAN Corrective Action Notice
>
> CAR Confirmation Assessment Review
>
> CARA criticality analysis risk assessment
>
> CARD cost analysis requirements document
>
> CAS computer-aided software
>
> CASE computer-aided software engineering
>
> CASI Center for AeroSpace Information
>
> Cat A Category A: Accountable contractors, including SEC and RTS
> contractors; work in, occupy JPL facilities
>
> Cat X Category X: Nonaccountable contractors; work in, occupy
> contractor--owned/leased facilities
>
> CBD *Commerce Business Daily*
>
> CBT computer-based training
>
> CC contamination control
>
> CCAFS Cape Canaveral Air Force Station
>
> CCB Change Control Board
>
> CCD charge-coupled device
>
> CCE Contamination Control Engineer
>
> CCP Contamination Control Plan
>
> CCSDS Consultative Committee for Space Data Systems
>
> CD compact disc
>
> CDHS command and data handling system
>
> CDR Critical Design Review
>
> CDRL contract data requirements list
>
> contract deliverable required listing
>
> CDS computer data system
>
> CDSCC Canberra Deep Space Communications Complex
>
> CE certainty equivalent
>
> CEM cruise electronics module
>
> CER Critical Event Review
>
> cost estimating relationship
>
> CERR Critical Events Readiness Review
>
> CET cost estimate template
>
> CFE contractor-furnished equipment
>
> CFDP CCSDS File Delivery Protocol
>
> CFMR Cost and Funds Management Report
>
> CFTP CCSDS File Transfer Protocol
>
> CHeX Confined Helium Experiment
>
> CIA command interface ASIC
>
> CI configuration item
>
> CICTP Cotswold Information and Communication Technology Partnership
>
> CIO Chief Information Officer
>
> CIPL consolidated indentured parts list
>
> CIRA Cooperative Institute for Research in the Atmosphere
>
> CISM Center for Integrated Space Microsystems
>
> CISSR Center for In Situ Exploration and Sample Return
>
> CIT California Institute of Technology
>
> CLD Center for Life Detection
>
> CM configuration management
>
> CMD command
>
> CME Configuration Management Engineer
>
> CMIS Conical Microwave Imager Sounder
>
> CMM capabilities maturity model
>
> CMO Contracts Management Office
>
> CMOS complementary metal oxide semiconductor
>
> CMP Configuration Management Plan
>
> CMU Carnegie Mellon University
>
> CN Contract Negotiator
>
> CNES Centre National d'Études Spatiales (French Space Agency)
>
> COBRA Consolidated Omnibus Budget Reconciliation Act
>
> COCOMO constructive cost model
>
> Code A NASA Office of the Administrator
>
> Code B NASA Office of Chief Financial Officer
>
> Code C NASA Office of Headquarters Operations
>
> Code E NASA Office of Human Resources and Education
>
> Code F NASA Office of Equal Opportunity Programs
>
> Code G NASA Office of General Counsel
>
> Code H NASA Office of Procurement
>
> Code I NASA Office of External Relations
>
> Code J NASA Office of Management Systems
>
> Code K NASA Office of Small and Disadvantaged Business Utilization
>
> Code L NASA Office of Legislative Affairs
>
> Code M NASA Office of Space Flight
>
> Code P NASA Office of Public Affairs
>
> Code Q NASA Office of Safety and Mission Assurance
>
> Code R NASA Office of Aerospace Technology
>
> Code S NASA Office of Space Science
>
> Code U NASA Office of Biological and Physical Research
>
> Code W NASA Office of the Inspector General
>
> Code X NASA Office of Security Management and Safeguards
>
> Code Y NASA Office of Earth Science
>
> Code Z NASA Office of Policy and Plans
>
> CODMAC Committee on Data Management and Computation
>
> COE center of excellence
>
> CoF Construction of Facilities (NASA program)
>
> CogE Cognizant Engineer
>
> COMM communication
>
> COMPL compliance
>
> Co-I Coinvestigator
>
> CO-OP cooperative
>
> COSPAR Committee on Space Research
>
> COTR Contract Officer Technical Representative
>
> Contract Officer, Technical Responsibility
>
> COTS commercial, off-the-shelf
>
> CP cost-plus (contract)
>
> critical path
>
> CPAG Cost Performance and Analysis Group
>
> CPAF cost-plus-award-fee (contract)
>
> cPCI compact PCI
>
> CPFF cost-price fixed-fee (contract)
>
> CPI cost performance index
>
> communications processor interface (equipment module)
>
> CPIF cost-plus-incentive-fee (contract)
>
> CPM critical path method
>
> CPR cloud profiling radar
>
> CPU central processing unit
>
> CR Confirmation Review
>
> CRIS code reduced instruction set
>
> CRR Confirmation Readiness Review
>
> CSA Canadian Space Agency
>
> CSEP clerical support effort personnel
>
> CSCI computer software configuration item
>
> CSMAD Center for Space Mission Architecture and Design
>
> CSMISS Center for Space Mission Information and Software Systems
>
> CSMT Center for Space Microelectronics Technology
>
> CSOC Consolidated Space Operations Contract
>
> CSP customer-supplied product
>
> CSR Concept Study Report
>
> CSULA California State University, Los Angeles
>
> CT Computational Technology
>
> CTE coefficient of temperature expansion
>
> CTM Contract Technical Manager
>
> CTO Commercial Technology Office
>
> CTR contract/-or
>
> CTT Compatibility Test Trailer (DSN)
>
> CUM cumulative
>
> CV cost variance
>
> CW continuous wave
>
> CWAWA Contractor Work Authorization Web Access
>
> CWO contract work order
>
> CWP Communicate with the Public (process)
>
> CWTD current week to date
>
> D&D design and development
>
> D&F determination and finding
>
> D/L downlink
>
> DAAC Distributed Active Archive Center
>
> DADR Data Archive Delivery Review
>
> DARA Deutsche Agentur für Raumfahrtangelegenheiten (German Space
> Agency)
>
> DARPA Defense Advanced Research Project Agency
>
> DAS data acquisition system
>
> dB decibel
>
> DB database
>
> DBA Database Administration/-or
>
> DBAT Design, Build, Assemble, and Test (process)
>
> DBMS database management system
>
> DC direct current
>
> District of Columbia (NASA HQ)
>
> DCAA Defense Contract Audit Agency
>
> DCAS Defense Contract Audit Support
>
> DDF Director's Discretionary Fund
>
> DDOR delta-differential one-way range
>
> DDP defect detection and prevention (assessment)
>
> DDR Delivery Deployment Review
>
> doubly differenced one-way range
>
> DE Data Extractor
>
> DEC Digital Equipment Corporation
>
> DES design
>
> DESCANSO Deep Space Communications and Navigation Systems Office
>
> DEV develop/-ment
>
> DFD data flow diagrams
>
> DGE display generation equipment
>
> DHR directional-hemispherical reflectance
>
> DHub Design Hub
>
> DIO discrete input/output
>
> digital input/output
>
> DISA Defense Information Security Agency
>
> DISCO^®^ Distributed Information Search Component
>
> Div. 31 JPL Systems Division
>
> Div. 32 JPL Earth and Space Sciences Division
>
> Div. 33 JPL Telecommunications Science and Engineering Division
>
> Div. 34 JPL Avionic Systems and Technology Division
>
> Div. 35 JPL Mechanical Systems Engineering and Research Division
>
> Div. 36 JPL Information Technologies and Software Systems Division
>
> Div. 38 JPL Observational Systems Division
>
> DK don't know
>
> DKDK don't know you don't know
>
> DMD data monitor and display (subsystem)
>
> DMIE Design and Maintain Institutional Environment (heritage process
> and document depository---now *JPL Rules!*)
>
> DMR detailed mission requirements
>
> DNP Develop New Products (process)
>
> DNS Desktop and Network Services (Sec. 1760)
>
> DNT Develop Needed Technology (process)
>
> DoD Department of Defense
>
> DOE Department of Energy
>
> DOJ Department of Justice
>
> DOORS^®^ Dynamic, Object-Oriented Requirements System
>
> DOR differenced one-way ranging
>
> downlink-only ranging
>
> DOT Department of Transportation
>
> DPA destructive parts analysis
>
> DPRO Defense Plant Representative Office
>
> DPS Deputy Project Scientist
>
> DR Discrepancy Report
>
> DRAM dynamic random-access memory
>
> DRD data requirement description
>
> data requirements document
>
> DRDF Director's Research and Development Fund
>
> DRIE deep-trench reactive-ion etch
>
> DS1 Deep Space 1 (mission)
>
> DSC differential scanning calorimeter
>
> DSMS Deep Space Mission System
>
> DSN Deep Space Network
>
> DSS Deep Space Station
>
> DT Develop Technology
>
> DTF DSN Test Facility
>
> DTM developmental test model
>
> DVD digital versatile disc
>
> DVM design verification matrix
>
> DVS Distinguished Visiting Scientist
>
> DWG drawing
>
> E/PO Education and Public Outreach
>
> E/RE Environmental/Reliability Engineer
>
> E-beam electron beam
>
> EA environment assessment
>
> EAA Enterprise (NASA) Associate Administrator
>
> EAC estimate at completion
>
> EACS Environmental Analysis Completion Statement
>
> EAO Environmental Affairs Office
>
> EAR Export Administration Regulations
>
> ECAP Employee Contribution, Assessment, and Planning
>
> ECI engineering change instruction
>
> ECO engineering change order
>
> ECR electron cyclotron resonance
>
> engineering change request
>
> ECS European Communications Satellite
>
> EDAC error detection and correction
>
> EDBAT Electrical DBAT (Design, Build, Assemble, and Test)
>
> EDG EOS Data Gateway
>
> EDL entry, descent, and landing
>
> EDMG Engineering Data Management Group
>
> EDOS EOS Data and Operations System
>
> EDS energy-dispersive spectroscopy
>
> EDXA energy-dispersive X-ray analysis
>
> EED electro-explosive device
>
> EEE electrical, electronic, and electromechanical
>
> EEIS End-to-End Information System
>
> EEIST End-to-End Information System Test
>
> EEPROM electronically erasable, programmable read-only memory
>
> EFC engineering flight computer
>
> EIA Electronic Industries Alliance
>
> EIC Equipment and Instrumentation Committee
>
> EICD electronic interface control drawing
>
> EIDP end item data package
>
> EIP Experiment Implementation Plan
>
> EIRR External Independent Readiness Review
>
> EIS Enterprise Information System
>
> Environmental Impact Statement
>
> ELDRS enhanced low-dose-rate sensitivity
>
> ELIAS Electronic Lab-wide Information Access System
>
> ELV expendable launch vehicle
>
> EM engineering model
>
> electromagnetic
>
> EMC electromagnetic compatibility
>
> electromagnetic contamination
>
> emissions and compatibility
>
> EMI electromagnetic interference
>
> ENGR engineer
>
> EOA Environmental Affairs Office
>
> EOC EOS Operations Center
>
> EOL end of life
>
> EOM end of mission
>
> EOS Earth-Observing System
>
> EPA Environmental Protection Agency
>
> EPE electronic parts engineering
>
> EPINS Electronic Parts Information Systems
>
> EPM Engineering Practices Manual
>
> EPQA Electronic Parts Quality Assurance
>
> EQ equivalent
>
> EQM electrical qualification model
>
> ER entity relationship
>
> ERD entity relationship diagrams
>
> ERE Environmental Requirements Engineer
>
> ERISA Employee Retirement Income Security Act
>
> ESA European Space Agency
>
> ESCA electron spectroscopy for chemical analysis
>
> ESD electrostatic discharge
>
> Engineering and Science Directorate (3X)
>
> ESR electron spin resonance
>
> ESSP Earth System Science Pathfinder
>
> ESTD Earth Science and Technology Directorate (8X)
>
> ETAS Environmental Test Authorization and Summary
>
> ETC estimate to complete
>
> ETL Environmental Test Laboratory
>
> ETR Eastern Test Range
>
> ETRR (ATLO) Environmental Test Readiness Review
>
> EUO Europa Orbiter
>
> EV earned value
>
> EVM earned value management
>
> EVMS Earned Value Management System
>
> EWW extended workweek
>
> FA flight acceptance
>
> FAB fabrication
>
> FAD (Project) formulation authorization document
>
> FAR Federal Acquisition Regulation
>
> FAT fastener acceptance tag
>
> FBC faster, better, cheaper
>
> FCA full-cost accounting
>
> functional configuration audit
>
> FCCA failure cause and corrective action
>
> FCR Final Confirmation Review
>
> Flight Certification Review
>
> full-cost recovery
>
> FDD functional design document
>
> FDIR fault detection, isolation, and recovery
>
> FE failure effect
>
> FEH Flight Equipment Handbook
>
> FF fixed-fee (contract)
>
> FFE friendly front end
>
> FFEX friendly front end executable (program)
>
> FFP firm-fixed-price (contract)
>
> FFRDC Federally Funded Research and Development Center
>
> FHLP Flight Hardware Logistics Program
>
> FHLS flight hardware location summary
>
> FIFO first in, first out
>
> FIRDR Final Interface Requirements and Design Review
>
> FIRST Far Infrared and Submillimeter Space Telescope (now Herschel
> Space Observatory)
>
> FLSA Fair Labor Standards Act
>
> FLT flight
>
> FM flight model
>
> FMEA failure modes and effects analysis
>
> FMECA failure modes, effects, and criticality analysis
>
> FMR funds management report
>
> FN foreign national
>
> FOR Flight Operations Review
>
> FORR Flight Operations Readiness Review
>
> FOV field of view
>
> FP fixed-price (contract)
>
> FPAR fractionally absorbed photosynthetically active radiation
>
> FPC Future Planning Council (Review)
>
> FPCImp Future Planning Council Implementation (Review)
>
> FPEMC Future Planning and Executive Management Council
>
> FPGA field-programmable gate array
>
> FPI fixed-price incentive (contract)
>
> FPPs Flight Project Practices
>
> FPR Flight Performance Reserve
>
> FPT Formulation Phase Team
>
> FR Failure Report
>
> functional requirement
>
> FRD functional requirements document
>
> FRERP Federal Radiological Emergency Response Plan
>
> FRR Flight Readiness Review
>
> FS Flight System
>
> FSIC forward sensor interface communications (equipment module)
>
> FST Flight System Testbed
>
> FSW flight software
>
> FTA fault tree analysis
>
> FTE full-time equivalent
>
> FTIR Fourier transform infrared
>
> FTP file transfer protocol
>
> FY fiscal year
>
> FYTD fiscal year to date
>
> G&A general and administrative
>
> G&C guidance and control system
>
> G&G Guide and Govern (domain)
>
> GaAs gallium arsenide
>
> GALEX Galaxy Evolution Explorer
>
> GAO General Accounting Office
>
> GAS Get Away Special (Shuttle program)
>
> GBL Government Bill of Lading
>
> GC/MS gas chromatograph/mass spectrometer
>
> GCF Ground Communications Facility
>
> GCOM Global Change Observing Mission
>
> GDS ground data system
>
> GFE government-furnished equipment
>
> GHz gigahertz (10^9^ Hz---one billion cycles/second)
>
> GIF GCF interface
>
> GMOS Ground Mission Operations System
>
> GNC guidance, navigation, and control
>
> GND ground
>
> GOR Ground Operations Review
>
> GOTS government, off-the-shelf
>
> GP general principles
>
> GPIB general purpose interface bus
>
> GPMC Governing Program Management Council
>
> GPS Global Positioning System
>
> GRACE Gravity Recovery and Climate Experiment
>
> GS ground system
>
> Group Supervisor
>
> GSE ground support equipment
>
> GSFC Goddard Space Flight Center
>
> GSK Generate Scientific Knowledge (process)
>
> GUI graphical user interface
>
> GUS General User Support
>
> H/W hardware
>
> HAD (NASA) Headquarters Accounting Division
>
> HATDAM Hypertext Approach to Documentation and Management (JPL's
> proposal resources Web site)
>
> HBCU historically black college or university
>
> HEF high efficiency
>
> HEPA high-efficiency particulate air (filter)
>
> HGA high-gain antenna
>
> HHS Health and Human Services
>
> HP™ Hewlett-Packard Company™
>
> HPLC high-pressure liquid chromatography
>
> HQ headquarters
>
> HR Human Resources
>
> HRCR Hardware Requirements Certification Review
>
> Hardware Review and Certification Record
>
> Hardware Review/Certification Requirement
>
> HRS Human Resources System
>
> HTML hypertext markup language
>
> http hypertext transfer protocol
>
> I&T integration and test
>
> I/F interface
>
> I/O input/output
>
> IA intellectual asset
>
> IAR Independent Annual Review
>
> Internal Assessment Review
>
> IAT independent assessment (red) team
>
> IBF institutional business forecast
>
> IBS Institutional Business Systems
>
> IC integrated circuit
>
> intelligence community
>
> ICA independent cost assessment
>
> ICAS identification, control, audit, status accounting
>
> ICB Invention and Contribution Board
>
> ICD interface control document
>
> ICE independent cost estimate
>
> Interferometry Center of Excellence
>
> ICIS Institutional Computing and Information Services
>
> ICOR inputs, controls, outputs, and resources
>
> ICP inductively coupled plasma
>
> ICR Initial Confirmation Review
>
> ICWG Interface Control Working Group
>
> ID identifier
>
> IDL Interactive Data Language
>
> IDP Intel data processor (equipment module)
>
> IEEE Institute of Electrical and Electronics Engineers
>
> IICD interface and intercommunication control document
>
> IIP Instrument Incubator Program
>
> IIPP Injury and Illness Prevention Program
>
> ILCCE independent life cycle cost estimate
>
> IM information management
>
> IM&TE inspection, measuring, and test equipment
>
> IMC Institutional Management Committee
>
> IMP improvement
>
> IMU inertial measurement unit
>
> IND Interplanetary Network Directorate (9X), formerly InterPlanetary
> Network and Information Systems Directorate
>
> INI incurred, not invoiced
>
> InP indium phosphide
>
> INSRP Interagency Nuclear Safety Review Panel
>
> INTEG integration
>
> IOM interoffice memo
>
> IP intellectual property
>
> IPAC Infrared Processing and Analysis Center
>
> IPAO Independent Program Assessment Office
>
> IPDT Integrated Product Development Team
>
> IPL indentured parts list
>
> IPN-ISD See IND
>
> IPO Integrated Program Office
>
> IPTO initial power turn-on
>
> IR infrared
>
> Inheritance Review
>
> Inspection Report
>
> IRAD internal research and development
>
> IRAS Infrared Astronomical Satellite
>
> IRD interface requirements document
>
> IRDI inspection report discrepant item
>
> IRT integrated review team
>
> IS information system
>
> ISA Incident, Surprise, Anomaly (report)
>
> instruction set architecture
>
> Integrated Subsystem Assembly (MPF)
>
> ISAR Initial Science Assessment Review
>
> ISB intersubassembly bus
>
> ISFD integrated software functional diagram
>
> ISMO Information Systems, Mission Assurance Office
>
> ISO International Organization for Standardization
>
> ISS imaging science subsystem
>
> ISSS Information Systems Support Services\
> (Sec. 3660)
>
> IT information technology
>
> ITAR International Traffic in Arms Regulations
>
> ITD inception to date
>
> ITET Information Technology Education and Training
>
> ITL integrate, test, and launch
>
> ITO initial turn-on
>
> ITT Infuse and Transfer Technology (process)
>
> IV&V independent verification and validation
>
> JASPP JPL Acquisition Strategy Planning Process
>
> JDBC Java Database Connectivity
>
> JIT Just-in-Time
>
> JPL Jet Propulsion Laboratory
>
> JSC Johnson Space Center (Houston)
>
> \$k thousand dollars
>
> KM knowledge management
>
> KPA key process area
>
> KSC Kennedy Space Center
>
> L launch
>
> L1 level-1 (requirements)
>
> LA Line administrator
>
> LAE launch approval engineering
>
> LAI leaf area index
>
> LAN local area network
>
> LAPG Launch Approval Planning Group
>
> LAPPG Launch Approval Planning and Policy Group
>
> LaRC Langley Research Center
>
> LCA load controller assembly
>
> LCS launch complex system
>
> LDD limited dimension drawing
>
> LEM-A lander electronics module---avionics
>
> LEM-P lander electronics module---power
>
> LEO low Earth orbit
>
> LGA low-gain antenna
>
> LIAO Legislative and International Affairs Office
>
> LIDAR light detection and ranging
>
> LIGA Lithographie Galvanoformung Abformung (thick-film lithography)
>
> LightSAR Light Synthetic Aperture Radar
>
> LIS Laser Interferometer Space Antenna
>
> LLIS Lessons Learned Information System
>
> LM Line manager
>
> LMA Lockheed Martin Astronautics
>
> LMCM Launch Management Coordination Meeting
>
> LM-CPC Lockheed Martin Communications and Power Center
>
> LM CSS Lockheed Martin Commercial Space Systems
>
> LMIT Lockheed Martin Information Technology
>
> LMMS Lockheed Martin Missiles and Space
>
> LMSE&C Lockheed Martin Space Electronics and Communications
>
> LOA letter of agreement
>
> LOC letter of credit
>
> LOE level of effort
>
> LPCVD low-pressure chemical-vapor deposition
>
> LRR Launch Readiness Review
>
> LSIM Launch Site Integration Manager
>
> LSPO Launch Services Planning Office
>
> LSRR Launch Site Readiness Review
>
> LSSP Launch Site Support Plan
>
> LSTO Launch Services Task Order
>
> LSUP Launch System Utilization and Planning (Group)
>
> LTMPE Low Temperature Microgravity Physics Experiments (Facility)
>
> LTS launch test set
>
> LV launch vehicle
>
> LVC Launch Vehicle Contingency (reserve)
>
> LVI Launch Vehicle Investigator
>
> LVM Launch Vehicle Manager
>
> LVMP Launch Vehicle Mission-Peculiar (reserve)
>
> LVPM Launch Vehicle Project Manager\'s (reserve)
>
> LWC Launch Window Contingency (reserve)
>
> LWCOE Long Wavelength Infrared Astrophysics Center of Excellence
>
> \$M million dollars
>
> M&P materials and processes
>
> MA Mission Assurance
>
> MAC Measurement Assurance Center
>
> MAM Mission Assurance Manager
>
> MARSIS Mars Advanced Radar for Subsurface and Ionosphere Sounding
>
> MAS mission analysis software
>
> MBE molecular-beam epitaxy
>
> MCDL master controlled document list
>
> MCIF Molecular Contamination Investigation Facility
>
> MCM multichip module
>
> MCO Mars Climate Orbiter
>
> MCR Mission Concept Review
>
> MCSE molecular contamination spectral effects
>
> MD mission design
>
> Mission Director
>
> MDBAT Mechanical DBAT (Design, Build, Assemble, and Test)
>
> MDCR Mission Definition and Cost Review
>
> MDL Microdevices Laboratory
>
> MDS Mission Data System
>
> MDSCC Madrid Deep Space Communications Complex
>
> MDVT Mission Design Verification Test
>
> ME manufacturing engineer
>
> MECA Mars Environmental Compatibility Assessment
>
> MED Mars Exploration Directorate (Mars Projects---now part of Space
> Science Flight Projects Directorate)
>
> MEL master equipment list
>
> MEMS microelectromechanical systems
>
> MEPO Mars Exploration Program Office (Sec. 150)
>
> MER Mars Exploration Rover
>
> MFG manufacturing
>
> MGA medium-gain antenna
>
> MGR manager
>
> MGS Mars Global Surveyor
>
> MGSE mechanical ground support equipment
>
> MICD mechanical interface control drawing
>
> MICM multivariable instrument cost model
>
> MIDEX Medium-Class Explorer (program)
>
> MIDP Mars Science Instruments Program
>
> Mil-Spec military specification
>
> MIM Mission Integration Manager
>
> MIMU miniature inertial measurement unit
>
> MIP mandatory inspection point
>
> MIPL Multimission Image-Processing Laboratory
>
> MIPR Military Interdepartmental Purchase Request
>
> MIRO Microwave Instrument for Rosetta Orbiter---now Mars NetLander
> Discovery Mission
>
> MISR Multiangle Imaging SpectroRadiometer
>
> MIUL materials identification and usage list
>
> MLS Microwave Limb Sounder
>
> MMO Multimission Operations Office
>
> Mission Management Office
>
> MMR monthly management report/review
>
> MNAV mission navigation
>
> MOA memorandum of agreement
>
> MOCA Mission Operations and Command Assurance
>
> Mission Operations Control Architecture
>
> MOCVD metal-organic chemical-vapor deposition
>
> MOD modification
>
> MOI Mars orbital insertion
>
> MOM Mission Operations Manager
>
> MOPS Mission Operations Planning System
>
> MOS Mission Operations System
>
> MOSFET metal oxide semiconductor field-effect transistor
>
> MOU memorandum of understanding
>
> MOX Mars Oxidant Experiment on Mars '96
>
> M-P mentor-protégé (relationship)
>
> MPEG Moving Picture Experts Group
>
> MPF Mars Pathfinder
>
> MPL Mars Polar Lander
>
> MPO Mars Program Office (150)
>
> MPS multiple program support
>
> MRB Material Review Board
>
> MRC Management Review Committee
>
> MRO Mars Reconnaissance Orbiter
>
> MRR Mission Readiness Review
>
> MS margin of safety
>
> Microsoft
>
> MSD Mission System Design
>
> MSDS Material Safety Data Sheets
>
> MSFC Marshall Space Flight Center
>
> MSN mission
>
> MSIO multibus serial input/output
>
> MSR Mars Sample Return
>
> MSRD mission systems requirement document
>
> MST Mission Sequence Test
>
> MTC Measurement Technology Center
>
> MTP Mature Technology Products (process)
>
> MTS Member of Technical Staff
>
> MUA materials usage agreement
>
> MUSES Mu Space Engineering Spacecraft
>
> NAC narrow-angle camera
>
> National Agency Check
>
> NAFCOM NASA/Air Force cost model
>
> NAG Navigation Advisory Group
>
> NAIF Navigation and Ancillary Information Facility
>
> NAR Nonadvocate Review
>
> NASA National Aeronautics and Space Administration
>
> NASA-STD NASA Standard (document series)
>
> NASDA National Space Development Agency (Japan)
>
> NAV navigation
>
> NAWS Naval Air Weapons Station
>
> NBS New Business Systems
>
> NCMR nonconformance material report
>
> NCR NASA cost report
>
> NCS National Communications System
>
> Nd neodymium
>
> NDA nondisclosure agreement
>
> NDE nondestructive evaluation
>
> NDL numeric data list
>
> NDT nondestructive testing
>
> NEAT Near Earth Asteroid Tracking (system)
>
> NEAR Near Earth Asteroid Rendezvous
>
> NEMO nanoelectronic modeling
>
> NEPA National Environmental Policy Act
>
> NEPP NASA Electronic Parts and Packaging (program)
>
> NIAT NASA Integrated Action Team
>
> NIH National Institutes of Health
>
> not invented here
>
> NIMA National Imaging and Mapping Agency
>
> NIST National Institute of Standards and Technology
>
> NLS NASA Launch Services
>
> NM New Millennium (program)
>
> NMC Network Monitor and Control
>
> NMO NASA Management Office
>
> NMP New Millennium Program
>
> NMR nuclear-magnetic resonance
>
> NOA new obligational authority
>
> NOAA National Oceanic and Atmospheric Administration
>
> NOCC Network Operations Control Center
>
> NODIS NSSDC\'s On-Line Data and Information Service
>
> NOI notice of intent
>
> NOPE Network Operations Project Engineer
>
> NPD NASA Policy Document
>
> NPDT Next Generation Payload Development Team
>
> NPG NASA Procedures and Guidelines
>
> NPOESS National Polar-Orbiting Operational Environmental Satellite
> System
>
> NPSL NASA Parts Selection List
>
> NRA NASA Research Announcement
>
> NRC National Research Council
>
> NRE nonrecurring engineering
>
> NRO National Reconnaissance Office
>
> NSA National Security Agency
>
> NSCAT NASA Scatterometer
>
> NSI NASA Standard Initiator
>
> Nuclear Systems Initiative
>
> NSSDC National Space Science Data Center
>
> NSTA National Space Technology Applications Office
>
> NTIA National Telecommunications and Information Administration
>
> NTR New Technology Report
>
> NTS National Technical Systems
>
> NVM nonvolatile memory
>
> OAS Oracle Account Structure
>
> OBS organization breakdown structure
>
> OBT Oracle budgeting tool (aka BDE)
>
> OCE Office of Communications and Education
>
> OCL Object Constraint Language
>
> OCR optical character recognition
>
> ODA Orbit Debris Assessment
>
> ODBC open database connectivity
>
> ODC other direct costs
>
> OEMA Office of Engineering and Mission Assurance (Quality Assurance
> Section, NASA)
>
> OGC Office of the General Counsel
>
> OIA operations interface agreement
>
> OIG Office of the Inspector General
>
> OLIA Office of Legislative and International Affairs
>
> OMB Office of Management and Budget
>
> OOD object-oriented design
>
> OP/SP Outer Planets/Solar Probe
>
> OPNAV optical navigation
>
> OPS operations
>
> ORR Operational Readiness Review
>
> ORT operational readiness test
>
> OSC oscillator
>
> OSF Office of Space Flight
>
> OSHA Occupational Safety and Health Administration (US Dept. of Labor)
>
> OSMS Office of Safety and Mission Success (5X)
>
> OSO Occupational Safety Office
>
> OSR Operational Safety Review
>
> OSS operational safety survey
>
> P/FR Problem/Failure Report
>
> PA proposal authorization
>
> PABSI profiling A-band spectrometer/visible imager
>
> PAL Project Assurance Leader
>
> PAPAC Provide Aerospace Products and Capabilities (process)
>
> PAR Proposal Authorization Review
>
> PASM power actuation and switching module
>
> PAT part acceptance tag
>
> PBM process-based management
>
> PBS product breakdown structure
>
> PCA power converter assembly
>
> program commitment agreement
>
> physical configuration audit
>
> PCard JPL purchase card
>
> PCAT Project Cost Analysis Tool
>
> Proposal Cost Analysis Tool
>
> PCE power conditioning equipment
>
> PCI peripheral component interconnect
>
> PCM power converter module
>
> PCR Preliminary Confirmation Review
>
> PCS power control slice
>
> PD/NSC Presidential Directive/National Security Council
>
> PDC Project Design Center
>
> PDCR Preliminary Definition and Cost Review
>
> Payload Director's Countdown Review
>
> PDF portable document format
>
> PDL program design language
>
> PDM program data management
>
> PDMS Product Data Management System
>
> PDR Preliminary Design Review
>
> PDS planetary data system
>
> PECVD plasma-enhanced chemical-vapor deposition
>
> PEM Project Element Manager
>
> plastic encapsulated microcircuit
>
> PEMC Project and Engineering Management Council
>
> PEP Performance Enhancement Program
>
> PES Provide Enabling Services (domain)
>
> PF protoflight
>
> PFM protoflight model
>
> PFPD Planetary Flight Projects Directorate (4X)
>
> PFST Project Formulation Support Team
>
> PFU protoflight unit
>
> Phase A Mission and Systems Definition Phase
>
> Phase B Preliminary Design Phase
>
> Phase C Design and Build Phase
>
> Phase D Assembly, Test, and Launch Operations Phase
>
> Phase E Operations Phase
>
> PI Principal Investigator
>
> PIE Parts Interface Engineer
>
> PINFO personal information (query)
>
> PIP Payload Integration Plan
>
> Performance Improvement Plan
>
> Project Implementation Plan
>
> PIRDR Preliminary Interface Requirements and Design Review
>
> PLAR Postlaunch Assessment Review
>
> PLP Project Leadership Process
>
> PM Program Manager
>
> Project Manager
>
> PM&CR Plan, Manage, and Control Resources (process)
>
> PM&O program management and operations
>
> PMAD power management and distribution
>
> PMB performance management baseline
>
> PMC Program Management Council
>
> PMCM parametric mission cost model
>
> Project mission cost model
>
> PMS Performance Measurement System
>
> PMSR Preliminary Mission and Systems Review
>
> PMT Performance Measurement Technique
>
> PNAR Preliminary Nonadvocate Review
>
> PO purchase order
>
> POP Program Operating Plan
>
> POR power-on-reset
>
> POSSE Pluto and Outer Solar System Exploration
>
> PP planetary protection
>
> PPG Project Planning Guide
>
> PPO Planetary Protection Office/-er
>
> PPP Program Planning Process
>
> PPR parts project requirement
>
> PPS power/pyro subsystem
>
> PPT pre--Phase A Project team
>
> PRA probabilistic risk analysis/assessment
>
> Project Resource Analyst
>
> PRAD Project Resource Administration Division
>
> PRDA Program Research and Development Announcement
>
> Pre--Phase A Advanced Studies
>
> PRELIM preliminary
>
> PRICE™ parametric review of information for costing and evaluation
>
> PRL Project Reference List (Workforce Planning)
>
> PRM Project resource management
>
> PROG program
>
> PROJ Project
>
> PROM programmable read-only memory
>
> PRP Personnel Reliability Program
>
> PRR Payload Readiness Review
>
> PRT platinum resistance thermometer
>
> PS Project Scientist
>
> PSA parts stress analysis
>
> Project Schedule Analyst
>
> PSE Project System Engineer
>
> power system electronics
>
> PSG Project science group
>
> PSLA Project support level agreement
>
> PSO Project Support Office
>
> PSR Preship Review
>
> PSS power switch slice
>
> PSU pyro switching unit
>
> PT prototype
>
> PTM proof test module
>
> PWB printed wiring board
>
> PWM pulse-width modulation
>
> Q1 first quarter (review)
>
> QA Quality Assurance
>
> QAE Quality Assurance Engineer
>
> QAP Quality Assurance Procedure
>
> QAPP Quality Assurance Project Plan
>
> QUAL qualification
>
> QE Quality Engineer
>
> QOTL Quasi-Optical Transmission Line
>
> QWIP quantum-well infrared photodetector
>
> R&D research and development
>
> R&TD Research and Technology Development (fund)
>
> R/T real time
>
> RA record anomaly
>
> RACS Radiation Analysis Completion Statement
>
> RAD rocket-assisted descent
>
> RAM reliability, availability, maintainability
>
> responsibility assignment matrix
>
> random-access memory
>
> RAP resource allocation planning
>
> RAX Remote Agent Experiment
>
> RBAM risk-based acquisition management
>
> RBP risk-balance profile
>
> RDBMS Remote Database Management System
>
> RDCUIAV requirements, design, code, unit test, integration test,
> acceptance test, validation
>
> RDD release description document
>
> RDM radiation design margin
>
> rapid development methodology
>
> RDVZ rendezvous
>
> RE reliability engineering
>
> REM rocket engine module
>
> Rec/Del receivable/deliverable
>
> RF radio frequency
>
> RFA recommendation for action
>
> RFI radio frequency interference
>
> request for information
>
> RFP request for proposal
>
> RFQ request for quotation
>
> RIE reactive-ion etch
>
> RM risk management
>
> RMDC radiometric data conditioning
>
> RMS Resource Management System
>
> ROI return on investment
>
> ROM read-only memory
>
> rough order of magnitude
>
> RPC remote procedure call
>
> RPS radioisotope power source
>
> RPWS Radio Plasma-Wave Spectrometer
>
> RSC range safety control
>
> RSQA reliability, survivability, quality assurance
>
> RT red team
>
> RTB regression test baseline
>
> RTG radioisotope thermoelectric generator
>
> RTOP Research and Technology Objectives and Plans
>
> RTOS real-time operating system
>
> RTP rapid thermal processing
>
> RTS resident task support (contractors)
>
> RX receiver
>
> RxTxAnt receiver/transmitter antenna
>
> S/A subassembly
>
> S/C spacecraft
>
> S/S subsystem
>
> S/W software
>
> SA Schedule Analyst
>
> supplemental agreement
>
> Systems Administrator
>
> Systems Analyst
>
> SAF Spacecraft Assembly Facility
>
> SAIC Science Applications International Corporation
>
> SALREV salary review
>
> SAM scanning acoustic microscopy
>
> SAMRC Safety and Materials Review Committee
>
> SAR synthetic aperture radar
>
> Safety Analysis Report
>
> System Architecture Review
>
> SB small business
>
> SBC single-board computer
>
> SCCB Site Configuration Control Board
>
> SCD Service Capability Development (process)
>
> SCET spacecraft event time
>
> SCF Science Computing Facility
>
> SCIGN Southern California Integrated GPS Network
>
> SCM software configuration management
>
> SCMT Service Commitment (process)
>
> SCR System Certification Review
>
> SDB small, disadvantaged business
>
> SDD software design document
>
> SDRAM synchronous dynamic random-access memory
>
> SDST small, deep-space transponder
>
> SDT science definition team
>
> SE support equipment
>
> Systems Engineer/-ing
>
> SE&I System engineering and integration
>
> SEB single-event burnout
>
> source evaluation board
>
> SEC Sun-Earth connection
>
> support effort contractors
>
> SECR support equipment certification request/record
>
> SEE single-event effect
>
> SEEA single-event effects analysis
>
> SEER™ system evaluation and estimate of resources
>
> SEGR single-event gate rupture
>
> SEI Software Engineering Institute (CMU)
>
> SEL selection
>
> single-event latchup
>
> Software Engineering Lab (GSFC)
>
> SELVS Small Expendable Launch Vehicle Services
>
> SEM scanning electron microscope
>
> SEQGEN sequence generator
>
> SER Safety Evaluation Report
>
> SESPD Space and Earth Science Programs Directorate (700)
>
> SET single-event transient
>
> SEU single-event upset
>
> SEU Structure and Evolution of the Universe
>
> SFA Space Flight Awareness (award)
>
> SFC Space Flight Center (NASA)
>
> spacecraft flight computer
>
> SFMECA software failure modes, effects, and criticality analysis
>
> SFTA software fault tree analysis
>
> SGI™ Silicon Graphics™
>
> Si silicon
>
> SI Système International d\'Unités (international system of units)
>
> SIA system interface assembly
>
> SICM scientific instrument cost model
>
> SIM simulation
>
> Space Interferometry Mission
>
> SIO system input/output
>
> SIR-A Spaceborne Imaging Radar A
>
> SIR-B Spaceborne Imaging Radar B
>
> SIR-C/X-SAR Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar
>
> SIRTF Space Infrared Telescope Facility
>
> SIS software interface specification
>
> superconducting-insulator-superconducting
>
> SITP Software Integration and Test Plan
>
> SLA service level agreement
>
> SLE Space Link Extension
>
> SMA Safety and Mission Assurance
>
> SMAD Safety and Mission Assurance Directorate (500)
>
> SMC Strategic Management Council
>
> SME subject-matter expert
>
> SMEX Small Explorers
>
> SMO Systems Management Office
>
> SMP software management plan
>
> SMT surface mount technology
>
> SOAP Satellite Orbit Analysis Program
>
> SOI Saturn orbital insertion
>
> SOM software operator's manual
>
> SOW statement of work
>
> SPC Signal Processing Center (DSN)
>
> Software Productivity Consortium
>
> SPF single-point failure
>
> SPI schedule performance index
>
> SPICE Spacecraft, Planet, Instrument, C-matrix, Events
>
> SPR software problem report
>
> SPT support
>
> SQA Software Quality Assurance
>
> SQI Software Quality Improvement (project)
>
> SQL Structured Query Language
>
> SR service request
>
> SRAM static random-access memory
>
> SRCR Software Requirements Certification Review
>
> software review and certification record
>
> SRD software requirements document
>
> SRE Subsystem Reliability Engineer
>
> SRL significant-risk list
>
> SRM System for Resources Management
>
> SRR System Requirements Review
>
> SRS shock response spectrum
>
> SRTM Shuttle Radar Topography Mission
>
> SSAC Space Science Advisory Committee
>
> SSADM structured specification, analysis, and design methodology
>
> SSAMP software supplier agreement management plan
>
> SSB solar system barycenter
>
> Space Studies Board
>
> SSD software specification document
>
> Service System Design (process)
>
> SSDE System Service Development Engineer
>
> SSDS Space Science Data System
>
> Space Station Data System
>
> SSE Solar System Exploration
>
> SSEPD Solar System Exploration Programs Directorate (6X)
>
> SSFPD Space Science Flight Projects Directorate (400)
>
> SSM Service/System Manager
>
> SSO Systems Safety Office
>
> source selection official
>
> SSSCM small spacecraft subsystem cost model
>
> ST3 Space Technology 3, the StarLight Mission
>
> ST&C structures and cabling
>
> STAR Special Thanks and Recognition (award)
>
> STEP Satellite Test of the Equivalence Principle
>
> STM scanning tunneling microscopy
>
> spacecraft transponding modem
>
> structural and thermal models
>
> STMC Science and Technology Management Council
>
> STP software test plan
>
> STS Space Transportation System (Space Shuttle)
>
> System test set
>
> STV system test and validation
>
> solar thermal vacuum
>
> SVLBI Space Very Long Baseline Interferometry
>
> SV schedule variance
>
> SVE Service Execution (process)
>
> survivability, vulnerability, environmental (requirement classes)
>
> SVF Supercomputing and Visualization Facility
>
> SWA summary work agreement
>
> SW-CMM Software Capability Maturity Model
>
> SWG Science Working Group
>
> SXT Soft X-ray Telescope
>
> SYS system
>
> T&C terms and conditions
>
> T&M time and materials
>
> T/B testbed
>
> TA type approval
>
> TAP Technology and Applications Program
>
> TAS TRIO assembly slice
>
> TBD to be determined
>
> T~c~ critical temperature, superconductivity
>
> TC thermocouple
>
> TC&DM telemetry command and data management
>
> TCM trajectory correction maneuver
>
> TD technical direction
>
> TDA Technology Development Agreement
>
> telecommunications and data acquisition
>
> TDI Technology Development and Infusion (process)
>
> TDM technical direction memorandum
>
> TDS telemetry delivery system, tracking data subsystem
>
> TDY temporary duty
>
> tech eval technical evaluation
>
> TEI trans-Earth injection
>
> TES thermal emission spectrometer (MGS)
>
> TEM transmission electron microscope
>
> TGS Technical Group Supervisor
>
> TID total ionizing dose
>
> TIF Tz interface
>
> TIMA Technology Infusion and Maturity Assessment
>
> TIP Task Implementation Plan
>
> TIS telemetry input subsystem
>
> TL team leader
>
> TLM telemetry
>
> TMA thermomechanical analyzer
>
> TMC Technical, Management, and Cost (Review)
>
> TMOD Telecommunications and Mission Operations Directorate (see IND)
>
> TMOT Telecommunications and Mission Operations Technology
>
> TMR Technical Management Representative
>
> triple modular redundancy
>
> TMS telecommunications and mission support
>
> TOA Task Order Amendment
>
> TOMS total ozone mapping spectrometer
>
> TOPEX (ocean) Topography Experiment
>
> TPM technical performance measure
>
> TPS thermal protection system
>
> TQM Total Quality Management®
>
> TRAC Technology Reporting and Communications Office
>
> TRIO temperature remote input/output
>
> TRL technology readiness level
>
> TRL 1 basic principles observed and reported
>
> TRL 2 technology concepts/applications formulated
>
> TRL 3 analytical and experimental critical function or characteristic
> proof-of-concept
>
> TRL 4 component or breadboard validation in the lab
>
> TRL 5 component or breadboard demonstration in relevant environment
>
> TRL 6 system validation model demonstration in relevant, simulated
> environment
>
> TRL 7 system validation model demonstrated in space
>
> TRL 8 actual system completed and "flight qualified" through test and
> demonstration
>
> TRL 9 actual system "flight proven" through successful mission
> operations
>
> TRR Test Readiness Review
>
> TSEP technical support effort personnel
>
> TT technology transfer
>
> TT&C telemetry, tracking, and control
>
> TTACS test telemetry and command subsystem
>
> TTCP Technology Transfer Control Plan
>
> T-V thermal-vacuum (test)
>
> TVFMT thermal, voltage, frequency margin testing
>
> TWT traveling-wave tube
>
> TWTA traveling-wave tube amplifier
>
> TX transmitter
>
> Tz T Zero (launch vehicle)
>
> U/L uplink
>
> UAA update as appropriate
>
> UART universal asynchronous receiver/transmitter
>
> UATP user acceptance test plan
>
> UATR user acceptance test report
>
> UCD use case diagrams
>
> UG user's guide
>
> UM unilateral modification
>
> UML Unified Modeling Language
>
> UPN unique project number
>
> URL universal resource locator
>
> USAF United States Air Force
>
> USGS US Geological Survey
>
> USO ultrastable oscillator
>
> UV ultraviolet
>
> UVIS ultraviolet imaging spectrograph
>
> V&V verification and validation
>
> VAFB Vandenberg Air Force Base
>
> VCM vacuum-condensable measurements
>
> VGR Voyager
>
> VIA Visiting Independent Auditor
>
> VIV verification, integration, and validation
>
> VIVO Verify, Integrate, Validate, Operate (process)
>
> VLBI very-long-baseline interferometry
>
> VLSI very-large-scale integration
>
> VME Versa Module Eurocard
>
> VPN virtual private network
>
> VRM verification requirements matrix
>
> VRTM verification of requirements trace matrix
>
> W/S worksheet
>
> WA work agreement
>
> WAM work authorization memorandum
>
> WBS work breakdown structure
>
> WCA worst-case analysis
>
> WF workflow
>
> workforce
>
> WFPC Wide-Field Planetary Camera
>
> WIRE Wide-Field Infrared Explorer Project
>
> WOB woman-owned business
>
> WOCD Web Organization Chart Directory
>
> WP work package
>
> WPA work process agreement
>
> 5X JPL Office of Engineering and Mission Assurance
>
> XPS X-ray stimulated photon spectrometer
>
> YAG yttrium-aluminum-garnet (laser)
>
> YTD year to date