NOAA KLM USER'S GUIDEAcronyms and Abbreviations |
| 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 |
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Noise Equivalent Radiance |
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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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