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NOTE: Most of the High Level Science Products are unavailable while unscheduled maintenance is being performed. They will be incrementally restored over the course of this week. We apologize for any inconvenience.

Acronym List

The following is a list of acronyms and abbreviations used in the MAST web pages. Where appropriate the mission or project using the item is also listed.

[ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ]


ACS - (HST) - Advanced Camera for Surveys
ADC - Astronomical Data Center (NASA/GSFC)
ADC - (EUVE) - Analog-to-Digital Converter
ADCCC - Astrophysics Data Centers Coordination Council
ADF - Astrophyics Data Facility (NASA/GSFC)
ADS - Astrophysics Data System
ASCII - American Standard Code for Information Interchange
BCKGRD - (IUE) - High-Dispersion Background Determination Module
BBXRT - Broad Band X-Ray Telescope
BEFS - (ORFEUS) - Berkeley Extreme & Far-Ultraviolet Spectrograph (BEFS)
CADC - Canadian Astronomy Data Centre
CALUV - (IUE) - Ultraviolet Flood Lamp
C/DH - (EUVE) Command and Data Handler
CDI - (IUE) - Core Data Item
CDP - Command and Data Processor
CDS - Astronomical Data Center of Strasbourg
CEA - Center for Extreme Ultraviolet Astrophysics (Berkeley)
CHIPS - Cosmic Hot Interstellar Plasma Spectrometer
COSTAR - (HST) - Corrective Optics Space Telescope Axial Replacement
CRHI - (IUE) - Cosmic Ray Image Extension to the SIHI (NEWSIPS)
CROSS-CORR - (IUE) - Cross-Correlation Module
DADS - (HST) - Data Archiving and Distribution System
DCG - (IUE) - Data Coordination Group
DFFS - (EUVE) - Digital Fine Sun Sensor
DMU - (IUE) - Data Multiplexer Unit
DN - (IUE) - Data Number (pixel intensity from the raw image)
DS/S - (EUVE) - Deep Survey/Spectromenter
DSS - (HST) - Digitized Sky Survey
EA/S - (EUVE) - Effective Area
EBCDIC - Extended Binary Coded Decimal Interchange Code
EGO - EUVE Guest Observer
ELBL - (IUE) - Extended Line-by-Line Image (IUESIPS)
EP - (EUVE) - Explorer Platform
ESA - European Space Agency
ESOC - EUVE Science Operations Center
EXTRACT - (IUE) - High-Dispersion Boxcar Extraction Module
EUVE - Extreme Ultraviolet Explorer
FADC - (IUE) - Final Archive Definition Committee
FES - (IUE) - Fine Error Sensor
FGS - (HST) - Fine Guidance Sensor
FHST - (EUVE) - Fixed Head Star Tracker
FIRST - Faint Images of the Radio Sky at Twenty-Centimeters
FITS - Flexible Image Transport System
FN - Flux Number (pixel intensity from the photometrically corrected image)
FOC - (HST) - Faint Object Camera
FOS - (HST) - Faint Object Spectrograph
FOT - (EUVE) - Flight Operations Team (NASA)
FPM - (IUE) - Flux Particle Monitor
FTP - File Transfer Protocol
FUSE - Far Ultraviolet Spectroscopic Explorer
FUV - (UIT) - Far Ultraviolet detector
- (ORFEUS) - Far Ultraviolet Echelle Spectrograph (referred to within
MAST as the Tübingen Ultraviolet Echelle Spectrometer (TUES))
FWHM - Full Width at Half Maximum
GALEX - Galaxy Evolution Explorer
GEOM - (IUE) - Geometric Correction Module
GHRS - (HST) - Goddard High Resolution Spectrograph
GMT - Greenwich Mean Time
GO - (IUE) - Guest Observer
GSFC - Goddard Space Flight Center; Greenbelt, Maryland
HDA - (HST) - Hubble Data Archive
HEASARC - High Energy Astrophysics Science Archive Research Center
HDF - (HST) - Hubble Deep Field
HDF-S - (HST) - Hubble Deep Field South
HEW - (EUVE) - Half Energy Width
HDU - (IUE) - Header and Data Unit
HSP - (HST) - High Speed Photometer
HST - Hubble Space Telescope
HUT - Hopkins Ultraviolet Telescope
HW - (WUPPE) - Halfwave polarimeter data
IDL - Interactive Data Language (licensed software by Research Systems,Inc.)
IMAPS - (ORFEUS) - Interstellar Absorption Medium Profile Spectrometer
INES - (IUE) - IUE Newly Extracted Spectra
IOR - (IUE) - Interorder Overlap Region
IRAF - Image Reduction and Analysis Facility
IRU - (EUVE) - Inertial Reference Unit
ISM - Interstellar Medium
ISW - (EUVE) Instrument Software
ITF - Intensity Transfer Function
IUE - International Ultraviolet Explorer
IUEDAC - IUE Data Analysis Center
IUEOCC - IUE Operations Control Center
IUESIPS - IUE Spectral Image Processing System
IUESOC - IUE Science Operations Center
LASP - Laboratory for Astronomy and Solar Physics at GSFC
LF - (IUE) - Linearized-Flag Image (NEWSIPS)
LFHI - (IUE) - Flag Image Extension to the LIHI (NEWSIPS)
LFLO - (IUE) - Flag Image Extension to the LILO (NEWSIPS)
LI - (IUE) - Linearized Image (NEWSIPS)
LIHI - (IUE) - High-Dispersion Linearized Image FITS File (NEWSIPS)
LILO - (IUE) - Low-Dispersion Linearized Image FITS File (NEWSIPS)
LWLA - (IUE) - Long Wavelength Large Aperture
LWP - (IUE) - Long Wavelength Prime Camera
LWR - (IUE) - Long Wavelength Redundant Camera
LWSA - (IUE) - Long Wavelength Small Aperture
MACS - (EUVE) - Modular Attitude Control System
MAST - Mikulski Archive for Space Telescopes (renamed April 5, 2012) formerly Multimission Archive at Space Telescope
MCP - (EUVE) - Microchannel Plate
MDF - (EUVE) - Minimum Detectable Flux
MDS - (HST) - Medium Deep Survey
MIDAS
MMF - (IUE) - Missing Minor Frame
MMS - (EUVE) - Multi-Mission Spacecraft
MPS - (EUVE) - Modular Power Subsystem
MX - (IUE) - Merged Extracted Image (NEWSIPS)
MXHI - (IUE) - High-Dispersion Merged Extracted Image FITS File (NEWSIPS)
MXLO - (IUE) - Low-Dispersion Merged Extracted Image FITS File (NEWSIPS)
NASA - National Aeronautics and Space Administration
NASCOM - NASA Astronomical Satellite Communications
NDADS - NSSDC Data Archive and Distribution System
NED - NASA/IPAC Extragalactic Database
NEWSIPS - (IUE) - New Spectral Image Processing System
NICMOS - (HST) - Near Infrared Camera and Multi-Object Spectrometer
NIST - National Institute of Standards and Technology
NOST - NASA/Science Office of Standards and Technology
NSSDC - National Space Science Data Center (GSFC/NASA)
NUV - (UIT) - Near Ultraviolet Detector
OBC - On-board Computer (IUE)
ORDERG - (IUE) - High-Dispersion Order Registration Module (part of RAW_SCREEN)
ORFEUS - Orbiting and Retrievable Far and Extreme Ultraviolet Spectrograph
PED - (EUVE) - Platform Equipment Deck
PEP - (Copernicus) - Princeton Experiment Package
PHOTOM - (IUE) - Photometric Correction Module
PI - Primary Investigator
PIXEL - Picture Element
POCC - (EUVE) - Payload Operations and Command Center
POT - (IUE) - Preplanned Observation Tape
PPARC - Particle Physics and Astronomy Research Council
PSF - Point Spread Function
PT-NE - Platinum-Neon
QPOE - (EUVE) - Quick Position Oriented Event
RA - (IUE) - Resident Astronomer
RAL - Rutherford Appleton Lab
RAW_SCREEN - (IUE) - Raw Image Screening Module
RDAF - (IUE) - Regional Data Analysis Center
RI - (IUE) - Raw Image (NEWSIPS)
RIF - (EUVE) - Relay Interface
RIHI - (IUE) - High-Dispersion Raw Image FITS File (NEWSIPS)
RILO - (IUE) - Low-Dispersion Raw Image FITS File (NEWSIPS)
ROLO - (IUE) - Original Raw Image Extension to the RILO (NEWSIPS)
ROSAT - Röntgensatellit
SAA - South Atlantic (Magnetic) Anomaly
SAG - (EUVE) - Space Astrophysics Group
SCRIPTS - (IUE) - Observing Specifications Log
SDSS - Sloan Digital Sky Survey
SEC - (IUE) - Secondary Electron Conduction
SERC - Science and Engineering Research Council (U.K.) (This council was incorporated as part of PPARC)
SET - (Copernicus) - Spacecraft Equivalent Time (15.72887 seconds)
SF - (IUE) - Resampled Nu-Flag Image (NEWSIPS)
SFHI - (IUE) - Nu-Flag Image Extension to the SIHI (NEWSIPS)
SFLO - (IUE) - Nu-Flag Image Extension to the SILO (NEWSIPS)
SI - (IUE) - Resampled Image (NEWSIPS)
SIHI - (IUE) - High-Dispersion Resampled Image FITS File (NEWSIPS)
SILO - (IUE) - Low-Dispersion Resampled Image FITS File (NEWSIPS)
SIMBAD - Set of Identifications, Measurements, and Bibliography for Astronomical Data
S/N - Signal-to-Noise Ratio
SSDS - Space Science Data System
STIS - (HST) - Space Telescope Imaging Spectrograph
STScI - Space Telescope Science Institute
STSDAS - Science Telescope Science Data Analysis System
SWET - (IUE) - Signal Weighted Extraction Technique Module
SWLA - (IUE) - Short Wavelength Large Aperture
SWP - (IUE) - Short Wavelength Prime Camera
SWR - (IUE) - Short Wavelength Redundant Camera
SWSA - (IUE) - Short Wavelength Small Aperture
TDRSS - Tracking Data Relay Satellite System
TFLOOD - (IUE) - Tungsten Flood Lamp
THDA - (IUE) - Camera Head Amplifier Temperature
TIF - (EUVE) - Telescope Interface
TM - (EUVE) - Telemetry
TO - (IUE) - Telescope Operator
TOO - (EUVE) - Targets of Opportunity
TTDC - (IUE) - Mean Dispersion Constant Correction Module
TUES - (ORFEUS) - Tuebingen Ultraviolet Echelle Spectrograph
UIT - Ultraviolet Imaging Telescope
ULDA - (IUE) - Uniform Low-Dispersion Archive
UT - Universal Time
UV - Ultraviolet
UVC - (IUE) - Ultraviolet to Visible Converter
UVFLOOD - (IUE) - Ultraviolet Flood Lamp
VD - (IUE) - Vector Displacements
VDHI - (IUE) - High-Dispersion Vector Displacement Image FITS File (NEWSIPS)
VDLO - (IUE) - Low-Dispersion Vector Displacement Image FITS File (NEWSIPS)
VICAR - (IUE) - Video Image Communication and Retrieval
VILSPA - Villafranca del Castillo, Spain - (European Ground Station for IUE)
VMS - (IUE) - Virtual Management System
WAVECAL - Wavelength Calibration
WF/PC-1 - (HST) - Wide Field and Planetary Camera 1
WFPC-2 - (HST) - Wide Field and Planetary Camera 2
WLHI - (IUE) - Wavelength Binary Table Extension to the SIHI (NEWSIPS)
WUPPE - Wisconsin Ultraviolet Photo-Polarimeter Experiment
XC - (IUE) - Cross-Correlation Coefficients
XCHI - (IUE) - Cross-Correlation Binary Table Extension to the VDHI (NEWSIPS)
XCLO - (IUE) - Cross-Correlation Binary Table Extension to the VDLO (NEWSIPS)