Acronyms - All
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Numbers
0R - Zero Reformatted Data
6H - Band 6 - high gain
6L - Band 6 - low gain
A
A&P - Archive and Production
A/D - Analog/Digital
AA - Active Archive or Alternative Analysis
AAC - Archive Advisory Committee
AADP - Active Archive Data Package
AAS - Anomaly Analysis Subsystem
ABML - As-Built Materials List
ABPL - As-Built Parts List
ABS - Absolute
AC - Alternate Current or Archive Cache
ACCA - Automated Cloud Cover Assessment or Actual Cloud Cover Average
ACK - Acknowledgement
ACL - Access Control List
ACQ - Acquired Scenes Report
ACRES - Australian Center for Remote Sensing
ACS - Attitude Control System
ACSLS - Automated Cartridge System Library Software
ACU - Antenna Control Unit
ACWP - Actual Cost of Work Performed
AD - Active Directory
ADA - Angular Displacement Assembly or Attitude Displacement Assembly
ADC - After DC Restore or Ancillary Data Corrector
ADD - Algorithm Description Document
ADF - Ancillary Data File
ADIC - Advanced Digital Information Corporation
ADM - Administrative Message
ADML - As-Designed Materials List
ADPL - As-Designed Parts List
ADS - Attitude Displacement Sensors or Angular Displacement Sensor or Archive Data Stager
ADSA - Attitude Displacement Sensor Assembly
ADVP - Algorithm Development and Verification Plan
AEM - Auxiliary Electronics Module
AES - Advanced Encryption Standard
AFB - United States Air Force Base
AFM - Anomalous Frame Manager
AFOV - Angular Field of View
AFWA - Air Force Weather Agency
AGC - Automatic Gain Control
AGE - Automated Ground Equipment
AGS - Alaska Ground Station
AIM - Algorithm Integration Meeting
AIS - Automated Information Security
AIT - Algorithm Implementation Team
ALI - Advanced Land Imager
ALIAS - Advanced Land Image Assessment System
AMP - Allocation Management Planner
AN - Ascending Node
ANC - Ancillary File
ANN - Annotation File
ANSI - American National Standards Institute
ANTLR - Another Tool for Language Recognition
AO - Authorization Official
AOI - Area of Interest
AOS - Acquisition of Signal or Arrival On-Site
API - Application Programming Interface
APID - Application Identification
AQ - Advanced Queuing
AQPSK - Asynchronous Quadrature Phase Shift Keying
AR - Archive or Axial Ratio
AS - Archive Server
ASA - Archive Server Application or Alice Springs [Station] Australia
ASCII - American Standard Code for Information Interchange
ASGUI - Archive Server Graphical User Interface
ASHRAE - American Society of Heating, Refrigeration and Air-Conditioning
ASIC - Application Specific Integrated Circuit
ASN - Alice Springs Ground Station
ASQC - American Society for Quality Control
AST - Active Scan Time
ASTER - Advanced Spaceborne Thermal Emission and Reflection
ASTM - American Society for Testing of Materials
AT-ACCA - Artificial Thermal Automated Cloud Cover Assessment
ATBD - Algorithm Theoretical Basis Document
ATCS - Absolute Time Command Sequence
ATL - Automated Tape Library
ATM - Asynchronous Transfer Mode
ATS - Absolute Time Sequence
AU - Astronomical Units
AUI - Analyst User Interface
AVPD - Avtec Programmable Demodulator
AVT - Algorithm Verification Test
B
B&A - Billing & Accounting
B1 - Build 1
B2B - Band-to-Band
BA - Billing and Accounting
BAC - Budget at Completion
BAD - Block Address Data
BASIS+ - Budget and Science Information System Plus
BATC - Ball Aerospace & Technology Corporation
BC - Best Case
BCD - Binary-Coded Decimal
BCH - Bose-Chaudhuri-Hocquenghem Error Detection and Correction
BCISO - Bureau Chief Information Security Officer
BCR - Baseline Change Request
BCWP - Budgeted Cost of Work Performed
BCWS - Budgeted Cost of Work Scheduled
BD - Band
BER - Bit Error Rate
BIH - Bureau International de l'Heure
BIL - Band Interleaved by Line
BIP - Band Interleaved by Pixel
BIP2 - Band Interleaved by Pixel Pair
BIS - Bureau of Industry and Security
BITSM - Bureau Information Technology Security Manager
BME - Browser Mean Element
BMO - Business Management Office
BMOC - Backup Mission Operations Center
BMOE - Backup Mission Operations Element
BN - Background Noise
BOE - Basis of Estimate
BPA - Blanket Purchase Agreement
BPAL - Best Practices Asset Library
BPDU - Bitstream Protocol Data Unit
BPF - Bias Parameter File
BPG - Bias Parameter Generator
BPSK - Biphase Shift Keying
BRAT - Bit Rot Assessment Tool
BRDF - Bi-directional Reflectance Distribution Function
BRDF-n - Normalized Bi-directional Reflectance Distribution Function
BRDF-s - Spectral Bi-directional Reflectance Distribution Function
BSP - Best Security Practices
BSQ - Band Sequential
BSTAR - Drag-Related Parameter in the NORAD Two-Line Element
BSU - Baseband Switching Unit
BSSC - Bit Synchronizer / Signal Conditioner
BTC - Bench Test Cooler
BTF - Ball Test Facility
BTI - Blank Tape Interface
BUTST - Bureau Unix Technical Support Team
BWTST - Bureau Windows Technical Support Team
C
C - Centigrade
C& DH - Command and Data Handling
C&A - Certification and Accreditation
C3S - NPOESS Command, Control, and Communications Segment
CA - Conjunction Assessment or Control Account
CADU - Channel Access Data Unit
CAGE - Commercial and Government Entity
CAL - Calibration Data
Cal/Val - Calibration/Validation
CAM - Control Account Manager
CAP - Cartridge Access Port or Control Account Plan
CAPE - Collection Activity Planning Element
CAPERD - CAPE Requirements Document
CBA - Cost Benefit Analysis
CBC - Cipher Block Chaining
CBG - Configuration and Build Guide
CC - Cubic Convolution or Computer Compatible Tape or Cloud Cover
CCA - Cloud Cover Assessment
CCB - Configuration Control Board
CCD - Charge-Coupled Device
CCM - Cloud Cover Manager
CCP - Configuration Change Process, Contamination Control Process, or Cloud Cover Prediction
CCR - Configuration Change Request
CCRS - Canada Center for Remote Sensing
CCS - COI Cleanup System or Confirmed Contact Schedule or Constellation Coordination System
CCSDS - Consultative Committee for Space Data Systems
CCT - Computer Compatible Tape
CD - Change Directory or Compact Disk
CDB - Centralized Database
CDBS - Centralized Database System
CDE - Common Desktop Environment
CDI - Capture Device Identifier
CDMS - Carrier Doppler Measurement System
CDR - Critical Design Review or Calibration Data Record
CDRL - Contract Data Requirements List
CD-ROM - Compact Disk-Read Only Memory
CDS - Coded Data Segment or Comprehensive Discrepancy System
CDT - Central Daylight Time
CE - Circular Error
CEOS - Committee on Earth Observing Satellites
CERT - Community Emergency Response Team
CF - Correction Factor or Cloud Fraction
CFC - Contact Forecast Confirmation or Cloud Fraction Climatology
CFDP - CCSDS File Delivery Protocol
CFP - Cold Focal Plane
CFPA - Cold Focal Plan Array or Cold Focal Plane Assembly
CFR - Code of Federal Regulations, Contact Forecast Request
CGB - Calculated Gains and Biases
CI - Configuration Item
CIA - Confidentiality, Integrity, and Availability
CIC - Computer Interrupt Code
CIL - Critical Items List
CIO - Chief Information Officer
CIRC - Computer Incident Reporting Center
CIS - Center for Information Security
CISO - Chief Information Security Officer
CIU - Controls Interface Unit
CLCW - Command Link Control Word
CLR - Combined Labor Rate Contractor Labor Rate
CLTU - Command Link Transmission Unit
CLU - Climate and Land Use
cm - Centimeter
CM - Configuration Management
CMD - Command
CMM - Capability Maturity Model
CMO - Configuration Management Office
CMP - Configuration Management Plan
CMS - Content Management System
CN - Coherent Noise
CNDs - Could-Not-Duplicates
CNR - Carrier-to-Noise Ratio
CO - Contract Officer or Content Owner
COC - Certificate of Completion or Cost of Consequence
COFUR - Cost of Fulfilling a User Request
COG - Center of Gravity or Continuity of Government
COI - Common Order Interface
COLA - Collision Avoidance
COMM - Communications Subsystem
Con Ops - Concept of Operations
CONAE - Commission Nacional De Actividades Espaciales
CONUS - Continental United States
COOP - Continuity of Operations
COQ - Cost of Quality
COR - Contracting Officer Representative or Cost of Reproduction
COTR - Contracting Officer's Technical Representative
COTS - Commercial Off-the-Shelf
CP - Calibration Parameter
CPF - Calibration Parameter File
CPFF - Cost-Plus-Fixed Fee
CPI - Cost Performance Index
CPIC - Capital Planning and Investment Control
CPR - Cost Performance Report
CPS - Calibration Parameter Management and Testing Subsystem
CPT - Comprehensive Performance Test
CPU - Central Processing Unit
CR - Central Repository or Controlled Repository or Change Request
CR1 - Computer Room 1
CR1MSS - Computer Room 1 Mass Storage System
CR2 - Computer Room 2
CR3 - Computer Room 3
CRaM - Combined Radiometric Model
CRC - Cyclic Redundancy Check or Cyclic Redundancy Code
CRIT - Central Repository Integration and Test
CRM - Customer Relationship Management or Continuous Risk Management
CRMP - Continuous Risk Management Plan
CROPS - Central Repository Operations
CRSSGS - China Remote Sensing Satellite Grand Station
CRST - Central Repository System Test
CRTEST - Central Repository Test
CS - Customer Service
CSA - Configuration Status Accounting
CSAM - Cyber Security Assessment Management
CSC - Computer Software Component
CSCI - Computer Software Configuration Item
CSIRT - Computer Security Incident Report Team
CSIS - Control and Schedule Interface System
CSR - Capture Success Rate, Capture Success Ratio
CSU - Computer Software Units
CSV - Comma Separated Values
CTE - Calibration Test Equipment or Compatibility Test Equipment
CTP - Command and Telemetry Processors
CTS - Capture Transfer Subsystem
CTV - Compatibility Test Van
CV - Command Verification or Cost Variance
CV-5 - Calibration and Validation 5
CV-7 - Calibration and Validation 7
CVCDU - Coded Virtual Channel Data Unit
CVCM - Collected Volatile Condensable Material or Collected Volatile Condensable Mass
CVDQA - Calibration Validation Data Quality Assurance
CVE - Calibration Validation Element
CVS - Concurrent Versions System
CVT - Calibration and Validation Team
CVTK - Calibration / Validation Tool Kit
CVTKRD - Calibration and Validation Toolkit Requirements Document
CVWG - Calibration-Validation Working Group
CW - Continuous Wave
CWBS - Contractor Work Breakdown Structure
D
D&M - Development and Maintenance
D/C - Down Converter
D/L - Downlink
D3 - 50GB Data tape cartridge from StorageTek
DA - Document Administrator
DAAC - Distributed Active Archive Center
DACA - Days After Contract Award
DAE - Data Acquisition Element
DAF - Data Acquisition Facility
DAG - Database Administrator Guide
DAM - Data Acquisition Manager
DAP - Data Acquisition Plan or Data Acquisition Planner
DART - Data Access Restriction Tool
DAS - Data and Applications Support
DAT - Data Access Tool
DB - Database or Data Block
dB - Decibel
dB/K - Decibel per Degree Kelvin
DBA - Database Administrator
DBCI - Database Configuration Item
DBDD - Database Design Description or Database Description Document
dB-Hz - Decibel-Hertz
dBi - Decibel above isotropic
DBI - Database Interface
DBMS - Database Management System
dBW - Decibel Relative to 1 Watt
DC - Direct Current
DC&P - Data Capture and Processing Facility
DCAA - Defense Contract Audit Agency
DCCB - DHF Configuration Control Board or Development Configuration Control Board
DCN - Document Control Number or Document Change Notice
DCO - DMS Capture Order
DCPF - Data Capture & Processing Facility
DCR - Document Change Request
DCRS - Data Collection and Routing Subsystem
DCRSf - Data Collection and Routing Subsystem file router
DCRSi - Data Collection and Routing Subsystem interval router or Digital Cassette Recorder System Incremental
DCS - Data Capture System or Data Characterization Subsystem
DCT - Digital Cassette Tape
DDD - Displacement Damage Dose
DDI - DCS Data Ingest
DDL - Database Definition Language
DDRC - DPAS Design Reference Case
DDS - DCS Database Server
DDT - DPAS Test Team
DE - Definitive Ephemeris
DEF - Definitive Ephemeris Product
Delta-I - Delta-inclination
DEM - Digital Elevation Model
DEPEPH - Definitive Ephemeris Product
DES - Station Description Message or DAAC Emergency System
DET - Escape Detection
DEU - Digital Electronic Unit
DEV - Development
DFCB - Data Format Control Book
DFD - Data Flow Diagram
DFP - DMS Format and Package
DG - Digital Globe
DGC - DMS Generate Custom GCPs
DHCP - Dynamic Host Configuration Protocol
DHF - Data Handling Facility
DHN - Data Handling Node
DIAT - Daily Image Annotation Tape
DID - Data Item Description or DMS Ingest L0R Data
DIR - Direction
DIRT - Data Interception by Remote Transmission
DIS - Data Information System, Data Instrumentation System
DiTL - Day in The Life
DLT - Digital Linear Tape
DM - Data Management or Document Management or Data Manager
DMA - Direct Memory Access
DMF - Data Migration Facility
DML - Data Manipulation Language
DMP - Document Management Plan
DMR - Detailed Mission Requirements
DMS - Data Management Subsystem or Degrees, Minutes, Seconds
DMSP - Defense Meteorological Satellite Program
DMU - Data Migration Utility
DMZ - Demilitarized Zone
DN - Descending Node or Digital Number
DNS - Domain Name Server
DOC - Department of Commerce
DoD - Department of Defense
DOI - Department of Interior
DOORS - Dynamic Object-Oriented Requirements System
DOP - Dilution of Precision
DOQ - Digital Orthophoto Quadrangle
DORRAN - Distributed Ordering, Research, Reporting, and Accounting Network
DoS - Denial of Service
DOS - Department of State
DOY - Day-of-Year
DP - Data Processing
DPA - Destructive Physical Analysis
DPAS - Data Processing and Archive System
DPASRD - DPAS Requirements Document
DPR - DMS Process ROLO Report
DPS - Data Processing Subsystem
DQA - Data Quality Analyst
DQV - Data Quality Validation
DR - Delivery Record or Discrepancy Report or Disaster Recovery
DRAC - Dell Remote Access Controller
DRB - Discrepancy Review Board
DRC - Data Requirements List
DRE - DMS Retrieve Elevation
DRFP - Draft Request for Proposal
DRM - DMS Resource Manager
DRP - Disaster Recovery Plan
DRTS - Data Reporting and Tracking Subsystem
DSI - DMS Subsetter Interface
DSL - Days-Since-Launch
DSN - Deep Space Network
DSS - Data Staging System or DPAS Subsetter
DST - Data Support Team
DSW - DMS Setup Work Order
DTED - Digital Terrain Elevation Data
DTG - Day Time Group
DTO - Data Transfer Object
DTR - Document Transfer Request
DTS - Development and Training Simulations
DUI - Data Manager User Interface
DUNS - Data Universal Numbering System
DV - Data Validation
DV&E - Data Validation & Exchange
DVD - Digital Versatile Disc
DVD-R - Digital Versatile Disc – Read Only
DXL - DMS L0 and L1 Products
E
E&A - Evaluation and Analysis
E&IT - Engineering and Information Technology
EA - Enterprise Architecture
EAC - Estimate at Completion
EAR - Export Administration Regulations
EAS - Evaluation and Analysis Subsystem
Eb - Energy per Bit
EBAS - EROS Billing and Accounting System
EC - Electronic Copy
ECC - Error Correction Code
ECEF - Earth-Centered, Earth-Fixed
ECI - Earth Centered Inertial
ECITOD - Earth Centered Inertial TRUE of Date
ECL - Emitter-Coupled Logic
ECR - Earth Centered Rotating
ECS - EOSDIS Core System
ECV - Essential Climate Variable
EDAC - Error Detection and Correction
EDC - EROS Data Center
EDDDR - EDC Daily Discrepancy Report or EDC Daily Data Received Report
EDG - EOS Data Gateway
EDU - Engineering Development Unit
EE - Earth Explorer
EEE - Electrical, Electronic, Electromechanical
EEO - Equal Employment Opportunity
EFS - Encrypting File System
EGSE - Electrical GSE
EIA - Electronic Industry Alliance
EIRP - Effective Isotropic Radiated Power
EIS - External Interface Specification
EJB - Enterprise Java Beans
EL1PS - EDC Level 1 Prototype System
ELV - Expendable Launch Vehicle
e-mail - Electronic Mail
EMC - Electromagnetic Compatibility
EMI - Electromagnetic Interference
EMP - Electromagnetic Pulse
EMV - Expected Monetary Value
ENVI - Environment for Visualizing Images
EO-1 - Earth Observing 1
EOC - Earth Observation Center
EOF - End-of-File
EOIS - Earth Observation Data & Information Systems
EOL - End-of-Line
EOM - End of Mission
EOS - Earth Observing System
EOSAT - Earth Observation Satellite Company
EOSDIS - EOS Data and Information System
EPA - Euler Parameter
EPF - ETM+ Processing Facility
EPGN - EOS Polar Groundstation Network
EPR - Engineering Peer Review
EPS - Electrical Power Subsystem
EPSG - European Petroleum Survey Group
ERB - Engineering Review Board
ERD - Entity Relationship Diagram
EROS - Earth Resources Observation and Science
ERR - Error
ERTS - Earth Resources Technology Satellite
ESA - European Space Agency
ESB - Enterprise Service Bus
ESD - Earth Science Division
ESDIS - Earth Science Data and Information System
ESMO - Earth Science Mission Operations
ESN - Enterprise Services Network
ESP - Encapsulating Security Payload
ESRIN - European Space Research Institute
ESUN - Solar Spectral Irradiance
ETC - Estimate to Completion
ETE - End to End
ETL - Extraction, Translation, Load
ETM - Enhanced Thematic Mapper
ETM+ - Enhanced Thematic Mapper Plus
ETRO - Estimated Return to Operations
EU - Engineering Unit
EV - Earned Value
EVDCU - Extended Virtual Channel Data Unit
EVM - Earned Value Management
EVMS - Earned Value Management System
EVP - Environmental Verification Plan
EVS - Earth-Vehicle-Sun angle or Earned Value System
EWR - Eastern and Western Ranges
EWW - Extended Work Week
F
F&PS - Functional and Performance Specifications
FAC - Full Aperture Calibrator
FAQ - Frequently Asked Question
FAR - Federal Acquisition Regulation
FASC - Full Aperture Solar Calibrator
FAST-L7A - FAST-Landsat 7 Format
FAX - Facsimile Transmission
FBI - Federal Bureau of Investigation
FBMS - Financial and Business Management System
FC - Formulation Contractor
FCA - Functional Configuration Audit
FC-AL - Fiber Channel-Arbitrated Loop
FCDAS - Fairbanks Command and Data Acquisition Station
FD - Flight Dynamics
FDC - Failure Detection and Correction
FDD - Facilities Definition Document or Format Description Document
FDDI - Fiber-Distributed Data Interface
FDF - Flight Dynamics Facility
FDIR - Fault Detection, Isolation, & Recovery
FEC - Forward Error Corrected
FEMA - Federal Emergency Management Agency
FFOV - Full Field of View
FFP - Firm Fixed Price
FFRDC - Federally Funded Research and Development Centers
FFS - Fiscal Financial System
FFT - Fast Fourier Transform
FGDC - Federal Geographic Data Committee
FHS - First Half Scan
FHSERR - First Half Scan Error
FIA - Final Implementation Agreement
FIFO - First In, First Out
FIPS - Federal Information Processing Standards
FIR - Finite Impulse Response
FISCAM - Federal Information System Control Audit Manual
FISMA - Federal Information Security Management Act
FMEA - Failure Mode and Effect Analysis
FMECA - Failure Modes, Effects, and Criticality Analysis
FMFIA - Federal Manager's Financial Integrity Act
FMT - Format
FNMOC - Fleet Numerical Meteorology and Oceanography Center
FOCCB - Flight Operations Configuration Control Board
FOIA - Freedom of Information Act
FOP - Flight Operations Plan
FOR - Flight Operations Review
FORMATS - Flight Dynamics Facility Orbit and Mission Aids Transformation System
FOS - Flight Operations Segment
FOT - Flight Operations Team
FOTS - Free Off-The-Shelf
FOV - Field of View
FPA - Focal Plane Assembly or Focal Plane Array
FPE - Focal Plane Electronics
FPGA - Field-Programmable Gate Array
FPM - Focal Plane Modules
FQT - Formal Qualification Testing
FRB - Full-Resolution Browse
FRED - Framed Raw Expanded Data
FRS - File Retrieval System
FS - Forecast Schedules
FSD - Flight Systems Development
FSM - Flight Systems Manager
FSSC - Financial Support Services Contract
FSV - Flight Software Vendor
FSW - Flight Software
FTA - Fault Tree Analysis
FTD - File Transfer Daemon
FTE - Full Time Equivalent or Full Time Employee
FTP - File Transfer Protocol
FW - Firewall or Full Width
FWHM - Full Width Half Maximum
FY - Fiscal Year
G
G/T - Gain over Temperature
G&A - General and Administrative
GAM - Geography Analysis and Monitoring
GAO - General Accounting Office
GAQD - Originator Routing Code for IIRV Messages
GAR - Global Archive Refresh
GB - Gigabyte
GBFOM - Global Band Figure of Merit
GBICS - Gigabit Interface Converters
GCCB - Ground Segment Configuration Control Board
GCOR - Temperature corrected Gains
GCP - Ground Control Point
GCTP - General Cartographic Transformation Package
GDAL - Geospatial Data Abstraction Library
GDP - Gross Domestic Product
GDS - Ground Data Systems
GEO - Geolocation Index File
GEOM - Geometric
GeoRSS - Geographic Really Simple Syndication
GeoTIFF - Geographic Tagged Image File Format
GEVS - General Environmental Verification Specification
GFE - Government-Furnished Equipment
GFS - Global File System
GFY - Government Fiscal Year
GHz - Gigahertz
GIA - Government Inspection Agency
GIDEP - Government Industry Data Exchange Program
GigE - Gigabit Ethernet
GIO - Geographic Information Officer
GIPS - Geo-Informatics Products and Solutions
GISRA - Government Information Security Reform Act
GISTDA - Geo-Informatics and Space Technology Development Agency (Thailand)
GLC - Ground Look Calibration Request or Gilmore Creek
GloVis - Global Visualization Viewer
GLS - Global Land Survey or Global File System
GMAP - Global Monitoring Acquisition Plan
GMT - Greenwich Mean Time
GN - Ground Network
GNE - Ground Network Element
GNE-DCRS - Ground Network Element Data Collection and Routing System
GNERD - GNE Requirements Document
GOES - Geostationary Operational Environmental Satellite
GOP - Ground Operations Plan
GOT - Ground Operations Team
GOTS - Government Off The Shelf
GP4 - General Perturbations Theory
GPD - GSFC Policy Directive
GPL - General Public License
GPS - Geometric Processing System or Gap Phase Statistic or Global Positioning System or Geometric Processing Subsystem
GRI - Ground Reference Image
GRIB - Gridded Data
GRID - Global Resource Information Database
GRM - Ground Readiness Manager
GRS - Grid Reference System (SPOT)
GRT - Ground Readiness Test
GRTT - Ground Readiness Test Team
GS - Ground System or Ground Segment
GSA - U.S. General Services Administration or Ground Station Analyst
GSC - Ground Station Controller
GSD - Ground Sampling Distance or Guide Star Data
GSE - Ground Support Equipment, Ground Station Engineers
GSFC - Goddard Space Flight Center
GSI - Ground Station Identifier or Ground System Infrastructure
GSIRD - Ground System Interface Requirements Document
GSIWG - Ground System Interface Working Group
GSL - GNU Scientific Library
GSM - Ground System Manager
GSRD - Ground System Requirements Document
GSSP - Guide for Developing Security Plans for Information Technology Systems
GST - Geographic Support Team or Ground Station Technician
GSTDN - Ground Spaceflight Tracking and Data Network
GSWG - Ground System Working Group
GSVVP - Ground System Verification and Validation Plan
GSVWG - Ground System Verification Working Group
GTOPO30 - Global 30 Arc-Second Elevation Data Set
GUI - Graphical User Interface
GXA - Gimbaled X-band Antennae
H
H/W - Hardware
HA - High Availability
HC - Hard Copy
HCR - Hardware Configuration Request or Hardware Change Request
HDDS - Hazards Data Distribution Systems
HDF - Hierarchical Data Format
HDF-EOS - Hierarchical Data Format - Earth Observing System
HDF5 - Hierarchical Data Format Version 5
HDF5-EOS - Hierarchical Data Format Version 5 - Earth Observing System
HDLC - High-Level Data Link Control
HDR - Header
HDRM - High Data Rate Modem
HDS - Horizontal Display Shift
HDT - High Density Tape
Hex - Hexadecimal
HgCdTe - Mercury Cadmium Telluride
HGS - Hallway Ground Station
HK - Housekeeping
HLD - High-Level Document
HOM - Hotine Oblique Mercator
HPA - High Power Antenna
HPN - Panchromatic Band Header File
HPP - Highest Point in Polygon
HQ - Headquarters
HRS - Horizontal Resampling Space
HRV - High Resolution Visible (SPOT sensor)
HSM - Hierarchical Storage Management or Hierarchical Storage Manager
HSPD - Homeland Security Presidential Directive
HTM - Thermal Bands Header File
HTML - Hypertext Markup Language
HTTP - Hypertext Transfer Protocol
HTTPS - Hypertext Transfer Protocol Secure
HUB - Historically Underutilized Business
HVAC - Heating Ventilation Air Conditioning
HVU - High Volume User
HWCI - Hardware Configuration Item
Hz - Hertz
I
I - In-Phase Channel
I1 - Internet 1
I2 - Internet 2
I&T - Integration and Test
I/O - Input/Output
I2I - Image-to-Image
I2RV - Improved Inter-Range Vector Message
IA - Implementing Agreement or Impact Analysis or International Activities
IAC - Independent Assurance Contractor or Issue Assessment Code
IAD - Ion-Assisted Deposition
IAS - Image Assessment Subsystem (LDCM) or Image Assessment System
IASICP - IAS Internal Calibrator Pulse
IATO - Interim Authority To Operate
IAW - In Association With
IBM - International Business Machines
IBR - Integrated Baseline Review
IC - Interface Control or International Cooperator or Internal Calibrator or Internal Cache
ICD - Interface Control Document
ICDR - Instrument Critical Design Review
ICe - Internal Calibrator processing for Emissive bands
ICF - Initial Correction Factor
ICMP - Internet Control Message Protocol
ICO - International Cooperator Office
ICT - Interface Connectivity Testing
ICVS - Independent Calibration and Verification Segment or Independent Characterization and Verification System
ID - Infrastructure Design, Interface Documents, or Identification
IDCS - Image Data Collection Schedule
IDD - Interface Definitions Document
IDE - Integrated Device Electronics or Infrastructure Development or Integrated Development Environment
IDF - Interval Definition File or Image Data File
IDPS - Image Data Processing Subsystem
IDR - IAS Data Recorder
IDS - Intrusion Detection System
IE - Infrastructure Element
IEEE - Institute of Electrical and Electronics Engineers
IETF - Internet Engineering Task Force
IF - Intermediate Frequency
IFAT - ITOS File Accounting Tool
IFFT - Inverse Fast Fourier Transform
IFOV - Instrument Field of View or Instantaneous Field of View
IGMP - Internet Group Management Protocol
IGS - Integrated Security Gateway or International Ground Station
IIRV - Improved Inter-Range Vector
IIOP - Internet Inter-ORB Protocol
IKE - Internet Key Exchange
ILI - IGS to LAM Interface
IM - Instant Message
IMB - Issue Management Board
IMF - Inverse Minor Frames or Interval Metadata File
IMP - Information Management Plan or Integrated Master Plan
IMR - Issue Management Record
IMS - Integrated Master Schedule or Information Management System
IMU - Inertial Measurement Unit or Internal Measurement Unit
IMWD - Internet Moving Window Display
IN - Impulse Noise or Ingest
INFOSEC - Information Security
INM - IGS Network Manager
INPE - National Institute for Space Research
InSb - Indium Antimonite
IOC - Initial Operational Capability, Initial On-orbit Checkout, Installation Operational Certification, or In-Orbit Checkout
IOE - Instrument Operations Element
IONET - IP Operational Network
IP - Internet Protocol or Installation Plan
IPC - Institute for Interconnecting and Packaging Electronic Circuits or Inter-Process Communication
IPComp - IP Payload Compression Protocol
IPDR - Instrument Preliminary Design Review
IPDU - Internet Protocol Data Unit
IPE - Image Processing Element
IPM - IGS Priority Mask Online Tool or IGS Priority and Request Map
IPO - Integrated Program Office
IPR - Intersegment Problem Report
IPS - Intrusion Prevention System or Image Processing Subsystem
IPSec - Internet Protocol Security
IPSR - Instrument Pre-Ship Review
IPT - Integrated Project Team
IPV - Integrated Pulse Value
IR - Infrared
IRB - Investment Review Board
IRD - Interface Requirements Document
IRFP - Implementation Request for Proposal
IRP - Incident Reporting Plan
IRS - Interface Requirements Specification
IRU - Inertial Reference Unit
IRV - Improved Inter-Range Vector Message
ISA - Internet Security and Acceleration or Interconnection Security Agreement
iSCSI - Internet Small Computer System Interface
ISD - Interface Specification Document
ISI - Integral Systems Incorporated
ISL - Inter-Switch Link
ISO - International Standards Organization
ISSO - Information System Security Official
ISTESR - Ingest Subsystem Test Execution Summary Report or Inventory Subsystem Test Execution Summary Report
IT - Information Technology or Integration Test
ITAR - International Traffic in Arms Regulations
ITC - Integration Test Case
ITS - Information Technology Services
ITSNOC - Information Technologies Service Network Operations Center
ITSOT - Information Technology Security Operations Team
ITSS - Information Technology and Scientific Services
ITU - International Telecommunications Union
IU - Individual User
IUR - Individual User Request
IV&V - Independent Verification and Validation
IVM - Interface Verification Matrix
IWG - Interface Working Group
J
J2EE - Java 2 Platform, Enterprise Edition
JAR - Java Archive
JaxB - Java Architecture for XML Binding
JBOD - Just a Bunch Of Disks
JBOSS - J2EE Application Server
JDBC - Java Database Connectivity
JDK - Java Development Kit
JFIF - JPEG File Interchange Format
JMS - Java Messaging Service
JMSRA - Java Message Service Resource Adapter
JPEG - Joint Photographic Experts Group
JPF - Job Parameter File
JPL - Jet Propulsion Laboratory
JSP - Java Server Pages
JSpOC - Joint Space Operations Center
JSR - Java Portlet Specification
JVM - Java Virtual Machine
K
K - Degrees Kelvin
KB - Kilobyte
KHB - Kennedy Space Center Handbook
kHz - Kilohertz
km - Kilometer
KML - Keyhole Markup Language
KPR - Key Performance Requirement
KSAT - Kongsberg Satellite Services
KVM - Keyboard Video Mouse
L
L0 - Level 0
L0c - Level 0 Corrected
L0R - Level 0 Reformatted
L0Ra - Level 0 Reformatted Archive
L0Rc - Level 0 Reformatted Corrected
L0Rp - Level 0 Reformatted Product
L1 - Level 1
L1G - Level 1 Systematic (Corrected)
L1Gs - Level 1 Geometric Systematic
L1Gt - Level 1 Systematic Terrain (Corrected)
L1P - Level 1 Precision (Corrected)
L1R - Level 1 Radiometric (Corrected)
L1R-H - Hybrid Level 1 Radiometric
L1SE - Level 1 Sustaining Engineering
L1T - Level 1 Terrain (Corrected) or Level 1 Precision and Terrain
L5 - Landsat 5
L7 - Landsat 7
L8 - Landsat 8
LACS - Landsat Archive Conversion System
LADS - LDCM Archive and Dissemination Segment
LAM - Landsat Archive Manager
LAM AS - LAM Archive Server
LAM008 - Interface Between COI PS and L0Rp PS
LAN - Local Area Network
LAS - Land Analysis System
LASP - Laboratory for Atmospheric and Space Physics
LAT - Latitude
LC - LDCM Contractor
LCC - Lambert Conformal Conic
LCCB - Landsat Configuration Control Board
LCCR - Landsat Configuration Change Request
LCG - Landsat Coordination Group
LCGS - LDCM Contractor Ground Segment
LCSS - LDCM Contractor Space Segment
LDAP - Lightweight Directory Access Protocol
LDB - IAS Local Database
LDCC - Landsat Data Continuity Contract
LDCM - Landsat Data Continuity Mission
LDI - LPS Data Ingest or L0Ra Data Ingest
LDIF - LDAP Data Interchange Format
LDIS - LAM to DORRAN Interface System
LDPC - Low Density Parity Check
LDPS - Landsat Data Purchase System
LDRCS - LDCM Document Review Comment Spreadsheet
LDTS - LPS Data Transfer Subsystem
LEDAPS - Landsat Ecosystem Disturbance Adaptive Processing System
LEI - LAM to ECS Interface
LEM - Lower Equipment Module
LEO - Low Earth Orbiting
LES - Log file Extraction Services
Level A - Level Zero Aggregated
LG - L0Ra Generator
LGGS - Landsat Global Geodetic Standard
LGN - Landsat 7 Ground Network or LDCM Ground Network
LGPL - Lesser General Public License
LGS - Landsat 7 Ground System or LDCM Ground System
LGSOWG - Landsat Ground Station Operations Working Group
LHC - Left-Hand Circular
LHCP - Left-hand Circularly Polarized
LHS - Left-hand Side or Left-Hand SLO
LIB - Library
LICS - Landsat International Communication System
LID - Landsat and LDCM Inventory Database
LIL - Landsat Inventory Loader or LDCM Inventory Loader
LIM - Landsat Inventory Management or LDCM Interface for Metadata
LIMB - LAM Interface for Metadata and Browse
LIS - Landsat Integration System or LACS Inventory System
LITAP - Landsat Intersegment Technical Assessment Panel
LL - Lower Left
LLI - LAM to LACS Interface
LM - Labeled Mask
Lmax - Maximum Radiance
LMC - Lockheed Martin Corporation
LMD - Landsat Mission Database or LDCM Mission Database
LMDD - Landsat Metadata Description Document
LMI - Lower Equipment Module Interface
LMMS - Lockheed Martin Missiles and Space
LMST - Local Mean Solar Time
LMWS - Landsat Mission Web Site
LNA - Low Noise Amplifiers
LOE - Level of Effort
LON - Longitude
LOOFA - Landsat 7 On-Orbit Flight Automation
LOS - Loss of Signal or Line-of-Sight
LP DAAC - Land Processes Distributed Active Archive Center
LPDS - Level 1 Product Distribution System or LDCM Data Product Specification
LPGS - Level 1 Product Generation System or Level 1 Product Generation Subsystem (LDCM)
LPGSUI - Level 1 Product Generation Subsystem User Interface
LPO - LDCM Program Office or LSDS Program Office
LPS - Landsat 7 Processing System
LPSNG - Landsat Processing System Next Generation
LPSO - Landsat Project Science Office
LPT - Limited Performance Test
LR - Lower Right
LRD - Launch Readiness Date
LRMB - LDCM Risk Management Board
LRR - Launch Readiness Review
LRS - Landsat Remote Sensing
LS - Launch Segment
LSATH - High Saturation Radiance
LSATL - Low Saturation Radiance
LSB - Least Significant Bit
LSC - Landsat Security Committee
LSDS - Land Satellites Data System
LSF - Line Spread Function
LSIMSS - LDCM Scalable Integrated Multi-Mission Support System
LSO - LDCM Science Office
LSQAT - Landsat Science Quality Assurance Team
LSR - Launch Support Room
LSRD - LSDS Science Research and Development
LSS - Launch Services Segment
LST - Landsat Science Team
LTA - Long Term Archive
LTAP - Long-Term Acquisition Plan
LTAS - Landsat Trending and Analysis System
LTI - Legacy Tape Ingest
LTO - Linear Tape Open
LTS - LACS Transcription System
LTVA - Limited Technical Vulnerability Assessment
LTWG - Landsat Technical Working Group
Ltypical - Typical Radiance
LUN - Logical Unit Number
LUT - Look-Up Table
LV - Launce Vehicle
LVDT - Linear Variable Differential Transformer
LWIR - Long Wavelength Infrared
M
m - meter
M&PCB - Materials and Processes Control Board
M&PCP - Materials and Processes Control Program
MA - Mission Archive or Multiple Access or Major Application or Mission Assurance
MAC - Media Access Control or Monitor and Control Subsystem
MACS - MSS-X Archive Conversion System or Monitor and Control Subsystem
MAD - Median Absolute Deviation
MAE - Materials Assurance Engineer
MAID - Massive Array of Idle Disks
MAM - Mission Assurance Manager
MAP - Mission Assurance Plan
MAR - Mission Assurance Requirements
MAS - MODIS Archive System
MB - Megabyte
Mbps - Megabit per Second
MC - MAC Controller
MCDL - Master Controlled Document List (LDCM)
MCDR - Mission Critical Design Review
MCM - Multi-Chip Module
MCS - Monitor and Control Subsystem
MD - Metrics Database or Mission Data or Mission Data
MD5 - Message-Digital Algorithm 5
MDA - MacDonald, Dettwiler, and Associates
MDGLS - Mid-Decadal Global Land Survey
MDH - Mission Data Header
MDIO - Mission Data Input / Output
MDL - Metadata Loader
MDS - MMO Database System or MMO Database Subsystem (MDS) (LDCM)
ME - Memory Effect
MEB - Materials Engineering Branch
MEC - Metrics ETL Component
MEOS - Multi-mission Earth Observation System
MF - Minor Frame
mf - minor frame
MFC - Microsoft Foundation Classes or MAC Fetch CPF
MFPS - Major Frame Processing Subsystem
MG - Metadata Generator
MGS - MODIS Ground Station
MHz - Megahertz
MIL - Materials Identification List or MAC Inventory L0Ra
MMIO - Modified Morarec Interest Operator
MIS - Master Integrated Schedule
MISR - Multiangle Imaging SpectroRadiometer
MJF - Major Frame
MJP - MAC Job Processor
MLC - Most Likely Case
MLDRCS - Master LDRCS
MLI - MACS to LAM Interface
MLT - Mean Local Time
mm - Millimeter
mm/hr - Millimeters per Hour
MMO - Mission Management Office
MMOIO - Mission Management Office Information Officer
MMOSA - MMO Security Activity
MMOSE - Mission Management Office Systems Engineer
MMR - Mission Requirements Review
MMS - MDGLS Management System or Multimission Modular Spacecraft
MO&DSD - Mission Operations and Data System Directorate
MOA - Memorandum of Agreement
MOC - Mission Operations Center
MODIS - Moderate Resolution Imaging Spectrometer
MODNET - MO&DSD Operational/Development Network
MODTRAN - Moderate Resolution Transmittance atmospheric modeling software
MOE - Mission Operations Element
MOERD - Mission Operations Element Requirements Document
MOI - Moment of Inertia
MOM - Mission Operations Manager
MOPSS - Mission Operations Planning and Scheduling System
MOR - Mission Operations Room or Mission Operations Review
MOS - Mission Operations Simulation
MOTS - Mission Off-The-Shelf
MOU - Memorandum of Understanding
MOVE - Mission Operations Voice Enhancement
MP - Multi-processor
MPLS - Multi Protocol Label Switching
MPR - Monthly Progress Review
MPS - MODIS Processing System or Mission Plan System
MPSR - Management Program Status Review
MR - Management Reserve
MRB - Milestone Review Board or Material Review Board
MRC - Metrics Reporting Component
MRR - Mission Requirements Review
MRT - Mission Readiness Testing
MRTG - MultiRouter Traffic Grapher
ms - millisecond
MS - Multispectral
msb - Most Significant Bit
MSB - Most Significant Byte
MSCD - Mirror Scan Correction Data
MSE - Mission Systems Engineering
MSFC - Marshall Space Flight Center
MSK - Receive Antenna Horizon Mask Message
MSM - MultiService Mobility or Mission Simulations Manager or Management Switch Module
MSPSP - Missile System Prelaunch Safety Data Package
MSR - Monthly Status Review
MSS - Multispectral Scanner or Mass Storage System
MSS-A - Multispectral Scanner - Archive Format
MSS-P - Multispectral Scanner - Processed Format
MSS-X - Multispectral Scanner data, reformatted CCT-X data
MST - Mission Support Team
MTA - Metadata
MTBF - Mean Time Before Failure
MTDSS - MS and TM Data Subsetting System
MTF - Modulation Transfer Function
MTFC - Modulation Transfer Function Compensation
MTL - Level 1 Metadata
MTP - Distribution Product Metadata
MTS - MDS Transformation Services
MTTR - Mean Time to Restore or Mean Time to Repair or Mean Time to Recovery
MTU - Maximum Transmission Unit
MUA - Materials Usage Agreement
mW - milliWatt
MWD - Moving Window Display
N
N/A - Not Applicable
N0 - Noise Density
NAK - Negative Acknowledgement
NARA - National Archive and Records Administration
NAS - NASA Assurance Standard
NASA - National Aeronautics and Space Administration
Nascom - NASA Communications
NASDA - National Space Development Agency (Japan)
NAVOCEANO - Naval Oceanographic Office
NBR - Normalized Burn Ratio or Navigation Base Reference
NCAS - National Carbon Accounting System
NCC - Network Control Center
NCEP - National Centers for Environmental Prediction
NCSA - National Center for Supercomputing Applications
NCT - Network Connectivity Test
NDE - Non-Destructive Examination
NDF - NLAPS Data Format
NDP - National Satellite Land Remote Sensing Data Archive (NSLRSDA) Data Package
NDPF - NASA Data Processing Facility
NDSI - Normalized Difference Snow Index
NDVI - Normalized Difference Vegetation Index
NEDL - Noise Equivalent Detector Radiance
NEDT - Noise Equivalent Detector Temperature
NEMA - National Electrical Manufactures Association
NEN - Near Earth Network
NEOS - National Earth Orientation Service
NEPAG - NASA EEE Parts Assurance Group
NESDIS - National Environmental Satellite Data and Information Service
NewOps - New Operational Procedures System
NFS - Network File System
NG - National Guard
NGA - National Geospatial Intelligence Agency
NGAC - National Geospactial Advisory Committee
NGST - Northrop Grumman Space Technology
NHB - NASA Handbook
NIC - Network Interface Card
NIPD - Network Interface Planning Document
NIR - Near-infrared
NISN - NASA Integrated Services Network
NIST - National Institute for Standards and Technology
NITF - National Imagery Transformation Format
NLAPS - National Land Archive Production System
NLI - National Land Imaging
NLIP - National Land Imaging Program
nm - Nanometer
NMAS - National Map Accuracy Standards
NMD - National Mapping Discipline
NMS - Network Management Software
NN - Nearest Neighbor
NOAA - National Oceanic and Atmospheric Administration
NOC - NUGS Operations Concept
NOLAN - Nascom Operational Local Area Network
NOM - Network Operations Manager
NOR - NORAD Two Line Element Message
NORAD - North American Air Defense
NOVAS - Naval Definition Vector Astronomy Software
NPD - NASA Policy Directive
NPOESS - National Polar-orbiting Operational Environmental Satellite System
NPSL - NASA Parts Selection List
NPV - Net Present Value or Net Pulse Value
NRCA - Nonconformance Reporting and Corrective Action
NRT - Network Readiness Test
NRTL - Nationally Recognized Testing Laboratory
NRZ-L - Non-Return to Zero-Level
NRZ-M - Non-Return to Zero-Mark
NSA - National Security Agency
NSDI - Normalized Snow Difference Index or National Spatial Data Infrastructure
NSLRSDA - National Satellite Land Remote Sensing Data Archive
NSM - Network and Security Manager
NSPAR - Nonstandard Parts Approval Request
NSS - NASA Safety Standard
NSSDC - National Space Science Data Center
NSTC - National Science and Technology Council
NTIA - National Telecommunications and Information Administration
NTE - Not To Exceed
NTP - Network Time Protocol
NUC - Non-Uniformity Correction
NUGS - NASA-USGS Joint Ground System
NUP - North Up
NWS - National Weather Service
O
O&M - Operations & Maintenance
OA - Operational Archive or Operations Agreement
OBC - Onboard Computer
OBE - Overcome By Events
OBP - On-Board Processor
OBS - Organizational Breakdown Structure
OC - Online Cache or Operations Concept
OCC - Operator Control Console or Occurrence
OCD - Operations Concept Document
OCI - Organization Conflict of Interest
ODBC - Open Database Connectivity
ODC - Other Direct Costs
ODL - Object Description Language
ODOS - Order Distribution and Order Status
ODS - Order Distribution Service
OE - Operations Engineer
OEM - Original Equipment Manufacturer
OFE - Order Fulfillment Element
OGC - Open Geospatial Consortium
OHS - Order Handler Subsystem
OIV - On-orbit Initialization and Verification
OLAP - On-Line Analytical Processing
OLI - Operational Land Imager
OM - Operations and Maintenance
OMA - Oblique Mercator Type A
OMB - Office of Management and Budget or Oblique Mercator Type B
OMS - Optimum Management System
OOB - Out-of-Band
OPM - Office of Personnel Management
OPR - Office of Primary Responsibility
OPS - Operations
Ops Con - Operations Concept
OR - Operations Readiness
ORB - Object Request Broker
ORR - Operations Readiness Review
ORT - Operational Readiness Test
OQPSK - Offset Quadrature Phase Shift Keying
OS - Operating System
OSC - Orbital Science Corporation
OSHA - Occupational Safety and Health Administration
OSI - Open Systems Interconnection
OSS - Object Storage Server or Operations Support Simulations
OSSMA - GSFC Office of Systems Safety and Mission Assurance
OST - Object Storage Target
OSTP - Office of Science and Technology Policy
OTF - Optical Transfer Function
OTS - OLI-TIRS Subsetter
OUI - Operator User Interface
OVAD - Operational Verification Acceptance Document
OVAP - Operational Verification Acceptance Period
OWB - Oracle Warehouse Browser or Oracle Warehouse Builder
OWSGUI - Oracle Web Service GUI
P
P/D - Programmable Demodulator
P&C - Project Management and Controls
PAC - Partial Aperture Calibrator
PAIV - Project Acceptance and Implementation Variance
PAM - Pluggable Authentication Module
PAN - Production Acceptance Notification or Panchromatic
PAPH - Pseudo Average Pulse Height
PAPL - Project Approved Parts List
PAR - Post Assessment Report
PASC - Partial Aperture Solar Calibrator
PB - Playback or Petabyte
PBL - Project Baseline Log
PBTLM - PB X-Band Housekeeping Telemetry
PC - Personal Computer, Polyconic, or Production Control
PCA - Physical Configuration Audit, Physical Channel Access, or Point of Closest Approach
Pcache - Processing Cache
PCB - Parts Control Board or Project Control Board
PCD - Payload Correction Data
PCDS - Payload Correction Data Subsystem
PCI - Peripheral Component Interface
PCI-E - Peripheral Component Interconnect Express
PCI-X - Peripheral Component Interconnect Extended
PCM - Pulse Code Modulation
PCP - Parts Control Plan
PCS - Process Control Subsystem or Product Control Subsystem or Production Control Subsystem
PCSS - Program Coordinate Systems Standards
PCU - Power Control Unit
PD - Product Distribution or Position Description
PDB - Program Decision Board
PDD - Presidential Decision Directive
PDF - Portable Document Format or Payload Data Formatter
PDI - Product Delivery Interface
PDL - Product Design Lead
PDPS - USGS – Planning and Data Processing Segment
PDR - Product Delivery Record or Preliminary Design Review
PDRD - Product Delivery Record Discrepancy
PDRM - Product Delivery Receipt Mechanism
PDS - Product Distribution System
PDU - Protocol Data Unit
PER - Performance Evaluation Review or Pre-Environmental Review
PERT - Program Evaluation and Review Technique
PF - Polarization Factor
PF1 - Poker Flats 1
PFPA - Prime Focal Plan Assembly
PFR - Problem / Failure Report
PG - Product Generation
PGS - Product Generation System (Generic Name for NLAPS) or Product Generation Subsystem
PgWBS - Program Work Breakdown Structure
PHA - Preliminary Hazard Analysis
PI - Primary Investigator
PIA - Project Implementation Agreement
PII - Personally Identifiable Information
PIL - Parts Identification List
PIP - Premium Internet Protocol
PIV - Personal Identity Verification
PKI - Public Key Infrastructure
PKO - Project Kick-Off
PL - Public Law
PL-DRO - Phase Locked Dielectric Resonance Oscillator
PL/SQL - Procedural Language / Structured Query Language
PM - Phase Modulation or Program Management or Project Management
PMC - Performance Monitoring Counter
PMB - Performance Measurement Baseline
PMBOK - Project Management Book Of Knowledge
PMI - Project Management Institute
PMO - Persistent Mission Object
PMP - Project Management Professional or Project Management Plan
PMPDR - Physical Media Product Delivery Record
PMPDRD - Physical Media PDR Discrepancy
PN - Pseudorandom Noise or Pseudo-Noise
PNG - Portable Network Graphics
PNTR - Pointer
PO - Project Owner
POA&M - Plan of Action and Milestones
POC - Point of Contact
POJO - Plain Old Java Object
POP - Point-Of-Presence
POSC - Petrotechnical Open Software Corporation
POSIX - Portable Operating System Interface for Unix
PP - Planning Package
PPF - Payload Processing Facility
PPL - Preferred Parts List
ppm - Parts Per Million
PPOC - Procurement Point of Contact
PPQA - Process and Product Quality Assurance
PPS - Pulse Per Second
PR - Program Review or Problem Report or Product Request
PRA - Paperwork Reduction Act or Probabilistic Risk Assessment
PRB - Problem Report Message
PRD - Project Reference Database
PRI - Priority Mask Message
PS - Polar Stereographic or Production Server
PSA - Pre Security Assessment
PSD - Power Spectral Density
PSF - Point Spread Function
PSK - Phase Shift Keyed
PSLA - Project Service Level Agreement
PSM - Project Safety Manager
PSR - Priority/Service Request Mask File or Pre-Ship Review or Pre-Shipment Review, or Program Status Review
PTP - Primary Transfer Program or Programmable Telemetry Processor
PTR - Post-Test Review
PTS - Project Task Structure
PV - Planned Value
PVCS - Polytron Version Control System
PVL - Parameter Value Language
PWB - Printed Wiring Board
PWBS - Project Work Breakdown Structure
PWC - PCS Work Order Controller
PWS - Project Web Site
Q
Q - Quadrature Channel
Q&A - Quality and Accounting
QA - Quality Assurance
QAA - Quality Assurance Audit
QAS - Quality Assessment Subsystem
QB - Quality Board or Quality Band
QC - Quality Control
QCM - Quartz Crystal Microbalance
QFS - Quick File System
QMM - Landsat Quarterly Management Meeting
QMP - Quality Management Plan
QMS - Quality Management System
QOCI - Qt Oracle Call Interface
QPSK - Quadrature Phase Shift Keying
QWR - Quarterly Web Review
R
R&D - Research and Development
R/T - Receive/Transmit
R0C - A stage of Radiometric Processing; Radiometric Calibration
R0R - A stage of Radiometric Processing; Radiometric Artifacts Collection
R1R - A stage of Radiometric Processing; Cosmetic Changes
R21 - Resource 21
RAC - Real Application Cluster or Risk Assessment Code
RAD - Radiometric
RAID - Redundant Array of Independent Disks
RAM - Random Access Memory or Responsibility Assignment Matrix or Resource Allocation Matrix
RAMP - Radarsat Antarctica Mapping Project
RAS - Reliability, Availability, Serviceability
RBS - Reflective Band Sensor or Risk Breakdown Structure
RBST - Role Based Security Training
RBV - Return Beam Vidicon
R-C - Resistor-Capacitor
RCA - Radio Corporation of America
RCC - Raw Computer Compatible
RCM - Resource Configuration Manager
RCN - Revision Control Number
RCR - Remote Controlled Repository
RDBMS - Related Database Management System
RDC - Remote Desktop Connection
RDCS - Raw Data Capture Subsystem
RDPS - Raw Data Processing Subsystem
RDS - Raw Data Subsetter
RDSS - RCC Data Subsetter
RE - Requirements Engineer and Responsible Engineer
REC - Recovery Time
REL - Relative
REST - Representational State Transfer
REQ - Service Request Message
RF - Radio Frequency
RFA - Request for Action
RFC - Request for Comments
RFP - Request for Proposal
RG - Relative Gain
RGB - Red Green and Blue Color Value
RHC - Right-hand Circular
RHCP - Right Hand Circularly Polarized
RHS - Right-hand Side or Right-hand SLO
RIDS - Review Item Discrepancies
RIM - Risk Information Management Tool
RIS24 - 24-bit Raster Image
RITSO - Regional IT Security Officer
RLUT - Response Linearization Look Up Table
RM - Requirements Management or Risk Manager or Resource Manager
RMAN - Recovery Manager
RMB - Risk Management Board
RMD - Risk Management Database
RMP - Requirements Management Plan or Risk Management Plan
RMR - Risk Management Record
RMS - Root-Mean-Square or Risk Management System
RMSE - Root Mean Square Error
RMT - Risk Management Tool
RN - Random Noise
ROI - Return on Investment or Region of Interest
ROIC - Read-Out Integrated Circuit
ROLE - Robotic Lunar Observatory
ROLO - Robotics Lunar Observatory
ROM - Rough Order of Magnitude
RPC - Remote Procedure Call
RPM - Revolutions per Minute
RPS - Radiometric Processing Subsystem
RRAS - Routing and Remote Access Services
RRB - Reduced Resolution Browse
R-S - Reed-Solomon
RSA - Rivest-Shamin-Adleman
RSB - Remote Sensing Branch
RSR - Relative Spectral Responses
RSS - Reuse Subsystem or Really Simple Syndication
RT - Real Time
RTA - Roof Top Antenna
RTC - Remote Telemetry and Command Unit
RTCS - Relative Time Command Sequence
RTF - Rich Text Format
RTS - Relative Time Sequence
RTT - Round Trip Time
RTTM - Requirements-To-Test Matrix
RX - Receive
S
S&O - Search and Order
S/C - Spacecraft
S/W - Software
SA - Spacecraft Analyst, Single Access, or Systems Administrator or Storage and Archive Subsystem
SA-AC - Storage Archive - Archive Cache
SAC - Satellite Application Centre (South Africa)
SAG - System Administrator Guide
SAGUI - Storage and Archive Graphical User Interface
SA-IC - SA – Internal Cache
SAIC - Science Applications International Corporation
SAM - Scan Angle Monitor or Storage Archive Manager
SAMP - Software Acquisition Management Plan
SAN - Storage Area Network
SANS - System Administration, Networking, and Security Institute
SA-PC - Storage Archive - Processing Cache
SARR - Security Assessment Response Report
SAS - Serial Attached SCSI
SAT - Site Acceptance Testing
SATA - Serial Advanced Technology Attachment
SAW - Systems Analysis Workgroup
SBAF - Spectral Band Adjustment Factor
SBG - Software Build Guide
SBM - Serena Business Manager
SBRS - Santa Barbara Remote Sensing
SC - Spacecraft, or Science Campaign
SCA - Sensor Chip Assembly
SCC - Stress Corrosion Cracking or System Control Center
SCD - Small Conversion Device
SCH - Contact Schedule Message
SCI - Software Configuration Item
SCID - Spacecraft Identifier
SCL - Signal Conditioning Unit - Lower Equipment Module
SCM - Software Configuration Management
SCN - Scan
SCP - Standard Controls Processor or Secure Copy Protocol
SCR - System Concept Review or Software Configuration Request
SCS - Scan-Correlated Shift, Satellite Checkout Station, or NOAA/IPO Space and Communications Segment
SCSI - Small Computer Software Interface
SD - South Dakota or Scan Direction
SDD - Software Design Document
SDF - Software Development File
SDLC - System Development Life Cycle
SDLT - Super DLT
SDM - Silo Data Manager
SDMP - Software Development Management Plan
SDN - South Dakota Network
SDP - Software Development Plan or Science Data Production
SDPS - Support Data Processing Subsystem
SDR - System Design Review
SDS - Scientific Data Set
SDU - Service Data Unit
SDW - Seamless Data Warehouse
SE - Systems Engineer
SEB - Source Evaluation Board
SED - Software Engineering Department
SEE - Single-Event Effect
SEI - Software Engineering Institute
SEIT - System Engineer Integration and Test
SEL - Single-Event Latchup or Software Engineer Lead
SelfDef - SelfDefining CMDA format
SEM - Security Engineered Machine
SEMP - Systems Engineering Management Plan
SEU - Single Event Upset - Anomaly Event
SEV - Severity or Sun-Earth-Vehicle angle
SF - Service Framework
SFBME - Short Form Brouwer Mean Element
SFC - Scene Framing Component
SFCG - Space Frequency Coordination Group
SFFT - Short Form Functionality Testing
SFTP - SSH File Transfer Protocol
Sg/SG6 - Svaldbard Ground Station
SGDAWG - Space to Ground Data Acquisition Working Group
SGI - Silicon Graphics Incorporated
SGP4 - Simplified General Perturbations
SGS - Svalbard Ground Station or Spitzbergen Ground Station
SHC - Shutter Histogram Characterization
SHS - Second Half Scan
SHSERR - Second Half Scan Error
SI - Searchable Inventory or Space Imaging or Science Instrument or Système International
SIAT - Spectral Image Annotation Tape
SIC - Spacecraft Identifier Code
SID - Searchable Inventory Database
SIFMT - Scene to Interval to File Mapping Table
SIG - Signaling
SIP - Standard Internet Protocol
SIR - Scientific Investigations & Research or Survey Investigation and Research
SIRU - Scalable Inertial Reference Unit
SITP - Software Integration Test Plan
SL - Scan Line
SLA - Service Level Agreement or Scan Line Artifact
SLC - Scan Line Corrector
SLAM - Storage Location Allocation Manager
SLAT - Spacecraft Location and Attitude Tape
SLATE - System Level Automation Tool for Enterprises
SLD - Scan Line Data
SLL - Scan Line Length
SLO - Scan Line Offset
SLOC - Standard Lines of Code
SLP - Service Location Protocol
SLS - Scan Line Start
SM - Schedule Manager or Scan Mirror
SMA - Safety and Mission Assurance or S-Band Multiple Access
SMAP - Safety and Mission Assurance Plan
SMC - Subsetter Monitor and Controllers
SMD - Stored Mission Data
SME - Scan Mirror Electronics or Subject Matter Expert
SMP - Software Maintenance Plan
SMR - Staff Management Request
SMRD - Science and Mission Requirements Document
SMS - System Management Server
SN - Space Network
SNAS - Space Network Access System
SNMP - Simple Network Management Protocol
SNR - Signal-to-Noise Ratio
SO - Search and Order
SOA - Service-Oriented Architecture or Satellite Operator Agency
SOD - Seconds Of Day
SOH - State of Health
SOM - Space Oblique Mercator
SON - Statement of Need
SOO - Statement of Objectives
SOP - Standard Operating Procedure
SOS - Spacecraft/Observatory Simulator
SOW - Statement of Work
SPARC - Scalable Processor Architecture
SPI - Schedule Performance Index
SPIM - SPOT Image
SPITL - Scheduling Period In The Life
SPL - Software Project Lead
SPOC - Service-Oriented Architecture (SOA) Proof of Concept or Security Point of Contact
SPOT - Satellite Pour l'Observation de la Terre (Satellite for Earth Observation)
SPSR - System Pre-Ship Review
SPVP - System Performance Verification Plan
SQA - Software Quality Assurance
SQAP - Software Quality Assurance Plan
SQL - Structured Query Language
SQMS - Software Quality Management System
SQPSK - Staggered Quadrature Phase Shift Keying
SQRT - Square Root
SR - System Review
sr - steradian
SRB - Schedule Review Board
SRD - System Requirements Document
SRI - Standard Robot Interface
SRM - Silo Resource Manager
SRO - Systems Review Office
SRR - System Readiness Review, System Requirements Review, or Software Requirements Review
SRS - Software Requirements Specification or System Requirements Specification
SRT - Systems Review Team
SRTM - Software Requirements Traceability Matrix or Shuttle Radar Topography Mission
SS - Space Segment or System Support
SSA - S-Band Single Access
SSCL - Standard System Control List
SSD - Subsystem Design Document
SSH - Secure Shell
SSIP - System Safety Implementation Plan
SSoH - Stored State of Health
SSP - System Security Plan or Satellite Support Plan
SSPA - Solid State Power Amplifier
SSPP - Systems Safety Program Plan
SSR - Solid State Recorder
ST - System Test
STC - System Test Case
STDEV - Standard Deviation
STDN - Spaceflight Tracking and Data Network
STE - System Test Equipment
STESR - System Test Execution Summary Report
STF - System Transfer Function
STIG - Security Technical Implementation Guide
STK - StorageTek
STP - System Test Plan
STR - System Test Report
STS - Scene Transmit Schedule
SUM - Summary
SUN - Sun Microsystems, Inc.
SUI - Subsetter Operator User Interface
SV - Space Vehicle, Schedule Variance, or Subversion
SvalSat - Svalbard Satellite Station
SVN - Sun-Vehicle-Normal angle or Subversion
SVT - Site Verification Test
SVVP - System Verification and Validation Plan
SW - Switch or Software
SWIR - Short Wavelength Infrared
SWOT - Strength, Weakness, Opportunity, and Threat
SZA - Solar Zenith Angle
T
T - Temperature
T1 - Tower 1
T2 - Tower 2
T&C - Telemetry and Command
T/V - Thermal/Vacuum
TAI - International Atomic Time
TAP - Technical Assessment Panel
TAR - Tape Archiver
TAT - Turn-Around-Time
TB - Terabyte
TBC - To Be Confirmed
TBD - To Be Determined
TBR - To Be Resolved, To Be Reviewed, or To Be Refined
TBS - To Be Submitted, To Be Supplied , or To Be Specified
TC - Test Case
TCDC - Total Cloud Cover
TCP - Transmission Control Protocol
TCPI - To Complete Performance Index
TCP/IP - Transmission Control Protocol/Internet Protocol
TCXO - Temperature-Compensated Crystal Oscillator
TDF - Tracking Data Formatter or Time-Dependent Factor
TDI - Time Delay Integration
TDR - Test Discrepancy Report
TDRS - Tracking and Data Relay Satellite
TDRSS - Tracking and Data Relay Satellite System
TDY - Temporary Duty
TE - Test Engineer
TEM - Technical Exchange Meeting
TERSS - Tasmanian Earth Resources Satellite Station Consortium
TESR - Test Execution Summary Report
tHC - The Hammers Company
TIC - Trusted Internet Connection
TID - Total Ionizing Dose
TIFF - Tagged Image File Format
TIM - Technical Interchange Meeting
TIR - Thermal Infrared
TIRS - Thermal Infrared Sensor or Thermal Infrared Scanner
TLE - Two-Line Element
TLM - Telemetry
TM - Thematic Mapper or Traverse Mercator
TM-A - Thematic Mapper - Archive Format
TMACS - Thematic Mapper and Multispectral Scanner Archive Conversion System
TMIAS - Thematic Mapper Image Assessment System
TML - Total Mass Loss
TM-R - Thematic Mapper - Raw Format
TMR - Thermal Mapper Raw
TMSR - TSSC Monthly Status Report
TNOS - Tromoso Network Operations Centre
TNS - Transport Network Substrate
TO - Task Order
TOA - Top of Atmosphere
TOR - Terms of Reference
TP - Task Plan
TPL - Telemetry Packetization Layer
TPM - Technical Performance Measures
TQCM - Thermoelectric Quartz Crystal Microbalanc
TRAM - Tracking, Routing, and Metrics
TRD - Technical Requirements Document
TRN - Technical Redirection Notice
TRR - Test Readiness Review
TSI - Honeywell Technology Solutions Inc.
TSR - Technical Service Request
TSSC - Technical Support Services Contract
TT - Terrestrial Time
TT&C - Telemetry, Tracking, and Control
TT&E - Test, Training, and Exercise
TTF - TIRS Test Facility
TTL - Transistor-Transistor Logic
TTOR - Transition To Operations Review
TURFTS - TDRS Users RF Test Set
TUTR - Tunable Universal Track Receiver
TWITL - Total WRS-2 In The Life
TWM - Task and Work Management
TWTA - Traveling-Wave Tube Amplifier
U
U/L - Uplink
U/P - Uplink Processor
UAF - University of Alaska, Fairbanks
UB - Undistributed Budget
UDP - Upper Data Point or User Datagram Protocol
UDT - UDP Data Transfer
UG - Users Guide
uhd - User's Home Directory
UI - User Interface
UIS - USGS Inventory Server
UL - Upper Left
UML - Unified Modeling Language
UNEP - United Nations Environment Programme
UNIX - Bell Laboratories trademark for operating system language and time sharing
unixODBC - Unix Open Database Connectivity
UP - User Portal Subsystem
UPE - User Portal Element
UPS - Uninterruptible Power Supply or Universal Polar Stereographic
UQPSK - Unbalanced Quadrature Phase-Shift Keying
UR - Upper Right
URL - Uniform Resource Locator
URP - User Request Parameters
US - United States
USB - Universal Serial Bus
USC - United States Code
USDA - U.S. Department of Agriculture
USG - U.S. Government
USGS - U.S. Geological Survey
USNO - U.S. Naval Observatory
USPS - United States Postal Service
USSTRATCOM - U.S. Strategic Command
UT - Universal Time or Unit Test
UT1 - UTC Corrected
UTC - Universal Time Code or Coordinated Universal Time
UTM - Universal Transverse Mercator
V
V&V - Verification and Validation
VA - Veteran Administration
VAC - Variance at Completion
VAFB - Vandenburg Air Force Base
VAP(s) - Value Added Processor(s)
VAR - Value-Added Resellers or Variance Analysis Report
VC - Virtual Channel
VCA - Virtual Channel Access
VCDU - Virtual Channel Data Unit
VCID - Virtual Channel Identifier or Virtual Channel Identification
VCLC - Virtual Channel Link Control
VDD - Version Description Document
VDP - Validation Data Products
VER - Version
VF - Valley Forge
VIIRS - Visible Infrared Imager / Radiometer Suite
VisID - Visual Identification
VLAN - Virtual Local Area Network
VM - Version Manager
VMS - Virtual Memory Storage
VNIR - Visible and Near Infrared
VOI - Value of Information
VOIP - Voice Over Internet Protocol
VPN - Virtual Private Network
VRM - Verification Requirements Matrix
VRP - Video Reference Pixel
VRS - Vertical Resampling Space
VTL - Verification Tracking Log
W
WAD - Work Authorization Document
WAN - Wide Area Network
WB - Wideband
WBDR - Wideband Downlink Report
WBM - Wide-Band Module
WBS - Work Breakdown Structure
WBV - Wide Band Video
WBVT - Wide Band Video Tape
WC - Worst Case
WCS - Web Coverage Services
WELD - Web-Enabled Landsat Data
WFS - Web Feature Services
WG - Working Group
WGS - World Geodetic System
WGS84 - World Geodetic System 1984
WILMA - Wide Long Term Multi-Satellite Archive
WIP - Work In Progress
WMS - Web Mapping Services
WO - Work Order
WORS - Wallops Orbital Tracking Station
WOTIS - Wallops Orbital Tracking Information Systems
WP - Work Plan or Work Package
WPS - Wallops Ground Station
WRS - Worldwide Reference System
WRS-2 - Worldwide Reference System-2
WSC - White Sands Complex
WSDL - Web Service Definition Language
WSGT - White Sands (NASA) Ground Terminal
WS-I - Web Services Interoperability
WVTCS - Wideband Video Tape Conversion System
WWW - World Wide Web
X
XML - Extensible Markup Language
XS - Multispectral SPOT sensor
XSD - XML Schema Definition
XTX - X-Band Transmitter
Y
YGC - Yaw Gyro Compassing
YSF - Yaw Steering Frame
YTD - Year-To-Date
Z
Z - Zulu time (same as GMT)
ZB - Zettabyte
ZFS - Zettabyte File System
U.S. Department of the Interior |
U.S. Geological Survey