Acronyms and Abbreviations

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A/D Analog/Digital
AC Alternating Current
ACF Albedo Correction Factor
ADACS Attitude Determination and Control Subsystem
ADE Array Drive Electronics
AELDS Advanced Earth Location Data System
AFGWC Air Force Global Weather Central
AFSCN Air Force Satellite Control Network
AFTN Aeronautical Fixed Telecommunications Network
AGC Automatic Gain Control
AGS Ascent Guidance Software
AIP AMSU Information Processor
AKM Apogee Kick Motor
AM Amplitude Modulation
AMSAT Radio Amateur Satellite Corporation
AMSU Advanced Microwave Sounding Unit
AMSU-A Advanced Microwave Sounding Unit-A
AMSU-B Advanced Microwave Sounding Unit-B
APT Automatic Picture Transmission
ARIA Advanced Range Instrumented Aircraft
ARS Archive Retrieval System
asc ascending
ASCII American Standard Coded Information Interchange
ASE Available Solar Energy
ASR Available Solar Radiation
ATMS Advanced Technology Microwave Sounder
ATN Advanced TIROS-N
ATOVS Advanced TIROS Operational Vertical Sounder
AVHRR/3 Advanced Very High Resolution Radiometer Version 3
BCA Battery Charge Assembly
BIP Band Interleaved by Pixel
BM Brouwer Mean
bps bits per second
BRDF Bidirectional Reflectance Distribution Function
BRU Battery Reconditioning Unit
BT Brightness Temperature
BTX Beacon Transmitter
C Celsius or Centigrade
CAC Climate Analysis Center
CCR Cloud Cover Radiometer
Contractor Change Request
CCS Command and Control Subsystems
CCT Computer Compatible Tape
CCW counter clockwise
CD Coefficient of Drag
CDA Command and Data Acquisition
CDEM Continuous Dynode Electron Multiplier
CEMES Centre d'Etudes de la Meteorologie Spatiale (France)
CEMSCS Central EnvironMental Satellite Computer System
CGMS Coordination Group for Meteorological Satellites
Ch Channel
CIU Control Interface Unit
CLASS Comprehensive Large Array-data Stewardship System
CLW Cloud Liquid Water
cm centimeter
CMMD VER Command Verification
CNES Centre National D'Etudes Spatiales (France)
CODATA Committee on Data for Science and Technology (International Council for Science)
CPC Controls Power Converter
CPIDS Calibration Parameters Input Data Sets
CSP Calibration Start Pulse
CU Control Unit
CW Clockwise
D/A Digital/Analog
DACS Data Acquisition And Control Subsystems
DAU Decryption Authentication Unit
dB decibel
dBm decibels per milliwatt
dBW decibels referenced to a watt
DC Direct Current
DCS/2 Data Collection System/2
desc descending
DHS Data Handling Subsystem
DIGB Digital "B"
DMSP Defense Meteorological Satellite Program
DOD Department of Defense
DPD DCS/SAR Processor Diplexer
DPSS Data Processing and Services Subsystem
DPU Data Processing Unit
DR Data Record
DRU Data Recovery Unit
DSB Direct Sounder Broadcast
DSN Digital Signal (level) N
DTR Data Transfer Rate
EAA Equal Areas/Equal Aspect
EBCDIC Extended Binary Coded Decimal Interchange Code
ECAL Electronic Calibration
ECF Earth Centered Fixed [coordinate system]
EDR Environmental Data Record
ELM Electronics Module
ELT Emergency Locator Transmitters
EMI ElectroMagnetic Interference
EOF End of File
EOR End of Record
EPIRB Emergency Position Indicating Radio Beacon (located by SARSAT)
ERBE Earth Radiation Budget Experiment
ESA Earth Sensor Assembly
ElectroStatic Analyzers
ESM Equipment Support Module
ETSR extraterrestrial solar spectral irradiance
EU Electronic Unit
Engineering Units
EUMETSAT European Organization for the Exploitation of Meteorological Satellites
eV electron volts
FGGE First GARP Global Experiment
FIFO First In First Out
FM Frequency Modulation
FNMOC Fleet Numerical Meteorology and Oceanography Center (NAVY)
FOV Field of View
FTP File Transfer Protocol
FW Filter Wheel
FWHM Full Width at Half Maximum
GAC Global Area Coverage
GARP Global Atmospheric Research Program
GCMD Global Change Master Directory
GDO Gunn Diode Oscillator
GHA Greenwich Hour Angle
GHz GigaHertz
GMS Geostationary Meteorological Satellite (Japan)
GOES Geostationary Operational Environmental Satellite
GRT Ground Receive Time
GTS Global Telecommunications Service
GUI Graphical User Interface
HIF Historical Instrument File
HIRS/3 High Resolution Infrared Radiation Sounder Version 3
HRPT High Resolution Picture Transmission
HTML Hyper Text Markup Language
HV High Voltage
HVPS High Voltage Power Supply
Hz Hertz
I/O Input/Output
ICE Inductosyn Control Electronics
ICT Internal Cold Target
IF Intermediate Frequency
IFC In-Flight Calibration
IFOV Instantaneous Field of View
IMP Instrument Mounting Platform
IMS Ice Mapping System
IMU Inertial Measurement Unit
in inch
IPD Information Processing Division
IR InfraRed
IRR InterRange Ratio
ITT-A/CD International Telephone and Telegraph - Aerospace/Communications Division
IWT Internal Warm Target
JIC Joint Ice Center
K Kelvin
Ka kilo amperes
kbps kilobits per second
keV kilo electron volts
kg kilograms
kHz kilo Hertz
km kilometer
kpps kilo pulses per second
KWBC National Weather Service Telecommunications Gateway
LAC Local Area Coverage
lbs pounds
LED Light Emitting Diode
LIFO Last In First Out
LOS Line of Sight
Loss of Signal
LRC Longitude Rotation Convention
LS level sensor
LSB Least Significant Bit
LSE Land Surface Emissivity
LSP Least Significant Portion
LST Local Solar Time
Land Surface Temperature
LUT Local User Terminals
LVPS Low Voltage Power Supply
LW LongWave
MASS Microwave and Antenna Subsystem
max maximum
mb millibars
mbps Megabits per second
MDD Meteorological Data Distribution
MDE Motor Drive Electronics
MEPED Medium Energy Proton and Electron Detector
MeV Milli electron volt
MFP Major Frame Pulse
MHz mega Hertz
mi mile
MIRP Manipulated Information Rate Processor
MIRS Microwave Integrated Retrieval System
mm millimeter
mps meters per second
mr milliradian
MSB Most Significant Bit
msec microsecond
MSP Most Significant Portion
MSPPS Microwave Surface and Precipitation Product System
MSU Microwave Sounding Unit
MTF Modulation Transfer Function
mux multiplexer
MW microwave
N/A Not Available
NASA National Aeronautics and Space Administration
NCDC National Climatic Data Center
NCEP National Center for Environmental Prediction
nedelta Noise Equivalent Radiance
NE Delta T Noise Equivalent Delta Temperature
NESDIS National Environmental Satellite, Data and Information Services
NH Northern Hemisphere
NIC National Ice Center
NIST National Institute of Standards and Technology
nm nanometers
NMC National Meteorological Center
NPP NPOESS Preparatory Project
NPOESS National Polar-orbiting Operational Environmental Satellite System
NOAA National Oceanic and Atmospheric Administration
NOAASIS NOAA Satellite Information System
NODC National Oceanographic Data Center
NOHRSC National Operational Hydrologic Remote Sensing Center
NORAD North American Air Defense Command (currently USSC)
NRZ-L Non-return to zero level
NRZ Non-return to zero
NWS National Weather Service
OIG Orbital Interest Group
OLR Outgoing Longwave Radiation
OOPS Operational Ozone Product System
ORA Office of Research and Applications (NOAA/NESDIS)
OSDPD Office of Satellite Data Processing and Distribution (NOAA/NESDIS)
OSO Office of Satellite Operations (NOAA/NESDIS)
OT Optical Thickness
PACS Polar Acquisition and Control Subsystem
PC37DF Primary Component 37 Day File
PCB Printed Circuit Board
PDPS Polar Data Processing System
PEU Processing Electronics Unit
PH37DF Primary Histogram 37 Day File
PHD Pulse Height Discriminators
PLLO phase locked loop oscillators
PM Phase Modulated
PMF Product Master File
PMT Photo Multiplier Tube
PMW Position Mode Wavelength
PN pseudo noise
POES Polar Operational Environmental Satellites
Pps pulses per second
PROM Programmable Read-Only Memory
PRT Platinum Resistance Thermometers
PSB Product Systems Branch
PSE Power Supply Electronics
PSG Polar Stereographic
PSU Power Supply Unit
PWR Power
QC Quality Control
RAM Random Access Memory
RAOB radiosonde observation
RBPGS Radiation Budget Product Generation System
RCE Reaction Control Equipment
RCS Reaction Control System
REF Reference
RF Radio Frequency
RFI Radio Frequency Interference
rms,  RMS root mean square
ROM Read Only Memory
rpm revolutions per minute
RPU Receiving and Power Unit
RSS Reaction Support Structure
RTOVS Revised TIROS Operational Vertical Sounder
RTTY Radio-Teletype
RWA Reaction Wheel Assemblies
RWM Read Write Memory
s/c spacecraft
S/N Signal to noise ratio
SA Solar Array
SAA Satellite Active Archive
Solar Azimuth Angle
SAD Solar Array Drive
SAIP Stored AMSU Ingest Processing
SAR Search And Rescue
SARP-2 Search and Rescue Processor
SARR Search and Rescue Repeater
SARSAT Search And Rescue Satellite Aided Tracking
SATCU Solar Array Telemetry Commutator Unit
SBA Spin Bearing Assembly
SBUV/2 Solar Backscatter Ultraviolet Version 2
SCF Satellite Control Facility (USAF)
SDEV Standard deviation
SDR Sensor Data Record
SEA Solar Elevation Angle
sec second
SEC Space Environment Center
SEM-2 Space Environment Monitor Version 2
SGP4 Simplified General Perturbation
SH Southern Hemisphere
SLA Search and Rescue L-Band Antenna
SM Sensor Module
SMSO Sweep Mode Solar Observations
SOA S-Band Omni Antenna
SOCC Satellite Operations Control Center
SPN Shared Processing Network
SPU Signal Processing Unit
sr steradian
SRA SAR Receiver Antenna
SSB Satellite Services Branch (NCDC)
SSBUV Space Shuttle SBUV
SSD Satellite Services Division
Solid State Detector
SSM/T2 Special Sensor Microwave/Water Vapor Profiler
SSM/T Special Sensor Microwave/Temperature
SSM/I Special Sensor Microwave/Imager
SSP Sub-Satellite Point
SST Sea Surface Temperature
SSU Stratospheric Sounding Unit
STIP Stored TIROS Information Processing
STU Scan Timing Unit
Standard Time Unit
STX Station Transmission Assembly
SUBCOM subcommutator
SW Short Wave
SWE Snow Water Equivilant
SZA Solar Zenith Angle
TARM TIROS Atmospheric Radiance Module
T/V Thermal/Vacuum
TBD To Be Determined
TBUS TIROS Bulletin United States
TCE Thermal Control Electronics
TCS Thermal Control Systems
TDR Temperature Data Record
TED Total Energy Detector
TIP TIROS Information Processor
TIROS Television Infrared Observation Satellite
TLE Two-line Elements
TLM Telemetry
TOVS TIROS Operational Vertical Sounder
TPW Total Precipitable Water
TU Transport Units
UDA UHF Data collection system Antenna
UEF User Ephemeris File
UHF Ultra High Frequency
URL Uniform Resource Locator
USAF United States Air Force
USO Ultra Stable Oscillator
USSC U.S. Space Command (formerly NORAD)
UTC Coordinated Universal Time (same as GMT)
UV UltraViolet
V/C Vector Control
V volt
VAFB/WR Vandenberg Air Force Base / Western Range
VCO Voltage Controlled Oscillator
VDC volts DC
VHF Very High Frequency
VHRR Very High Resolution Radiometer
VIS visible
VPD Vacuum Photo Diode
VRA VHF real-time antenna
VS Variable block Span (IBM)
VTF Vacuum Test Fixture
VTX VHF real-time transmitter
W watts
WEFAX Weather Facsimile (from meteorological satellites)
WLC Wavelength Calibration
WMO World Meteorological Organization
WR Western Range
Work Request
WWW World Wide Web
XBT Expendable BathyThermograph
XSU Cross Strap Unit

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