| ACRONYM |
DESCRIPTION |
| M |
MILLION (OR MEGA) |
| M |
MAGNITUDE (OF STAR) |
| m |
METER |
| M & D |
MICROMETEOROID & SPACE DEBRIS |
| M & DOD |
MISSION AND DATA OPERATIONS DIRECTORATE |
| M & O |
MAINTENANCE & OPERATIONS |
| M & SS |
MISSION & SIMULATION SOFTWARE |
| M & T |
MONITOR & TEST (VIP) |
| M/B |
MAKE/BUY |
| m3 |
CUBIC METER(S) |
| mA |
MILLIAMPHERE(S) |
| MA |
MULTIPLE ACCESS |
| MAB |
MAN & THE BIOSPHERE |
| MAC |
MODAL ASSURANCE CRITERIA |
| MAC |
MIDDLE ATMOSPHERIC COOPERATION |
| MAC |
MATERIALS AND COATINGS |
| MAC |
MAXIMUM ALLOWABLE CONCENTRATION |
| MACC |
MULTIPLE APPLICATIONS CONTROL CENTER |
| MACH |
MENSURATION AND ASSESSMENT OF COASTAL HABITAT |
| MACSAT |
MULTI-ACCESS COMMUNICATIONS SATELLITE (DoD COMM. SATELLITE LAUNCH) |
| MACSAT |
MACINTOSH SATELLITE (NOT REALLY, SEE OTHER MACSAT) |
| MAD |
MADRID, SPAIN, STDN STATION (NASA) |
| MAD |
MAGNETIC ANOMALY DETECTOR |
| MAF |
MULTIPLE ACCESS FORWARD (LINK) |
| MAFP |
MAJOR FRAME PULSE |
| MAG |
MEMORY ADDRESS GENERATOR |
| MAG |
MAGNETOSPHERIC CURRENTS AND FIELDS |
| MAG |
MAGNETOMETER |
| MAGE |
MECHANICAL/MOBILE AEROSPACE GROUND EQUIPMENT |
| Magellan |
MAGELLAN (NASA/SPACECRAFT TO GLOBALLY MAP THE SURFACE OF VENUS) |
| MAGIC |
MODE-A GOES IMAGER CONVERTER |
| Magsat |
MAGNETIC FIELD SATELLITE (NASA/EARTH'S MAGNETIC FIELD) |
| MAGSAT |
MAGNETOMETER SATELLITE |
| MAM |
MIRROR ATTENUATOR MOSAIC |
| MAM |
MARCH-APRIL-MAY |
| MANICE |
MANUAL OF SEA ICE REPORTING |
| MAPS |
MEASUREMENT OF AIR POLLUTION FROM SHUTTLE/SATELLITES |
| MAPS |
MILLIONS OF ACTIONS PER SECOND |
| MAR |
MULTIPLE ACCESS RETURN (LINK) |
| MARD |
MODERNIZATION AND RESTRUCTURING DEMONSTRATION (NWS) |
| MAREPS |
MARINE REPORTS |
| MASS |
MESOSCALE ATMOSPHERIC SIMULATION SYSTEM |
| MAT |
MISSION ALLOWABLE TEMPERATURE |
| max |
MAXIMUM |
| MAXIE |
MAGNETOSPHERIC ATMOSPHERIC X-RAY IMAGE/IMAGING EXPERIMENT |
| mB |
MILLIBAR (A UNIT OF PRESSURE); PASCAL IS NOW THE PREFERRED UNIT |
| MB |
ALPHABETICAL DESIGNATION GIVEN TO AN IMAGE ENHANCEMENT CURVE |
| Mb |
MEGABIT(S) |
| MB |
MEGABYTE(S) |
| MBA |
MULTIPLE BERTHING ADAPTER |
| mbps |
MEGABIT(S) PER SECOND |
| Mbyte |
MEGABYTE |
| MC |
MANNED CORE |
| MC |
MASTER CLOCK |
| MC |
MISSION CONTROLLER |
| MCC |
MISSION CONTROL CENTER (NASA) |
| MCC |
MESOSCALE CONVECTIVE COMPLEX |
| MCD |
MANUFACTURING CONTROL DOCUMENT |
| MCDS |
MULTIFUNCTION CRT DISPLAY SYSTEM |
| MCDS |
MANAGEMENT COMMUNICATIONS AND DATA SYSTEM |
| MCDSH |
MANAGEMENT COMMUNICATIONS AND DATA SYSTEM HARDWARE |
| MCF |
MASTER CONTROL FACILITY |
| McIDAS |
MAN-COMPUTER INTERACTIVE DATA ANALYSIS SYSTEM |
| MCO |
MOSTLY COVERED (CLOUD FIELD) |
| MCR |
MISSION CONTROL ROOM |
| MCSST |
MULTICHANNEL SEA SURFACE TEMPERATURE |
| MD |
MASTER DIRECTORY |
| MDAC |
MCDONNELL DOUGLAS ASTRONAUTICS CORPORATION |
| MDAC |
MULTIPLYING DIGITAL TO ANALOG CONVERTER |
| MDB |
MASTER DATA BASE |
| MDC |
MCDONNELL DOUGLAS CORPORATION |
| MDC |
MAINTENANCE DATA COLLECTION |
| MDCS |
MAINTENANCE DATA COLLECTION SYSTEM |
| MDD |
METEOROLOGICAL DATA DISSEMINATION |
| MDD |
MISSION DESCRIPTION DOCUMENT |
| MDF |
MASTER DOCUMENT FILE |
| MDL |
MULTIUSER DATA LINK |
| MDL |
MULTI-PURPOSE DATA LINK |
| MDM |
MULTIPLEXER/DEMULTIPLEXER |
| MDR |
MISSION DRESS REHEARSAL |
| MDS |
MECHANICAL DRAWING SYSTEM |
| MDST |
MOUNTAIN DAYLIGHT SAVINGS TIME |
| MDT |
MEAN DOWN TIME |
| MDUC |
METEOROLOGICAL DATA UTILIZATION CENTER (NEW DELHI, INDIA) |
| MDUS |
MEDIUM-SCALE DATA UTILIZATION STATION |
| ME |
EARTH MEAN EQUATOR |
| MECO |
MAIN ENGINE CUT-OFF |
| MEOP |
MAXIMUM EXPECTED OPERATING PRESSURE |
| MEP |
MAIN ENABLE PLUG |
| MEPA |
MEDIUM ENERGY PARTICLE ANALYZER |
| MEPED |
MEDIUM ENERGY PROTON AND ELECTRON DETECTOR |
| MER |
MISSION EVALUATION ROOMS |
| MERIS |
MEDIUM-RESOLUTION IMAGING SPECTROMETER (ESA/EPOP-A1) |
| MESSR |
MULTISPECTRAL ELECTRONIC SELF-SCANNING RADIOMETER |
| Meteor |
METEOROLOGICAL SATELLITE (USSR) |
| Meteosat |
EUROPEAN GEOSTATIONARY METEOROLOGICAL SATELLITE (ESRO) |
| METO |
METEOROLOGICAL OFFICE |
| METOP |
METEOROLOGICAL OPERATIONS |
| METROMEX |
METROPOLITAN METEOROLOGICAL EXPERIMENT (ST LOUIS, MO) |
| METSAT |
METEOROLOGICAL SATELLITE |
| MeV |
MEGA/MILLION ELECTRON VOLTS |
| MFD |
MASTER FILE DIRECTORY |
| MFE/Magnol |
MFE/Magnolia: MAGNETIC FIELD EXPLORER/MAGNOLIA (US/FRANCE) |
| Mfg |
MANUFACTURING |
| MFID |
MAIN FRAME IDENTIFICATION |
| MFLOPS |
MILLION FLOATING POINT OPERATIONS PER SECOND |
| MFP |
MEN OR FRAME PULSE |
| MFP |
MINOR FRAME PULSE |
| MFR |
MALFUNCTION RECEIVER (TYPICALLY A PERSON WITH IMPAIRED HEARING) |
| MFR |
MULTIFUNCTION RECEIVER |
| MFR |
MANIPULATOR FOOT RESTRAINT |
| Mg |
MILLIGRAM |
| MGC |
MISSILE GUIDANCE SYSTEM |
| MGCS |
METEOSAT GROUND COMPUTER SYSTEM |
| MGGD |
MARINE GEOLOGY & GEOPHYSICS DIVISION (NESDIS/NGDC, BOULDER, CO) |
| MGP |
MICRO-G PHYSICS AND CHEMISTRY EXPERIMENTS GROUP |
| MGSE |
MECHANICAL GROUND SUPPORT EQUIPMENT |
| MHAC |
MULTI-FREQUENCY HIGH-GAIN ANTENNA CONFIGURATION |
| MHD |
MAGNETO HYDRODYNAMICS |
| MHz |
MEGAHERTZ (10,564 CYCLES PER SECOND) |
| mi |
MILE |
| MI |
MODULATION INDEX |
| MIC |
MANAGEMENT INFORMATION CENTER |
| MID |
MODEM INTERFACE DEVICE |
| MIEC |
METEOROLOGICAL INFORMATION EXTRACTION CENTRE |
| MIL |
MILITARY |
| MIL |
MERRITT ISLAND, STDN STATION (NASA, FL) |
| MIL-HDBK |
MILITARY HANDBOOK |
| MIL-SPEC |
MILITARY SPECIFICATION (USUALLY THE SAME AS MIL-STD) |
| MILSTAR |
MILITARY STRATEGIC TACTICAL & RELAY SATELLITE |
| MIL-STD |
MILITARY STANDARD |
| MIMR |
MULTI-FREQUENCY IMAGING MICROWAVE RADIOMETER |
| MIMU |
MINATURE INERTIAL MEASUREMENT UNIT |
| min |
MINIMUM |
| Min |
MINUTE(S) |
| MIP |
MISSION INTEGRATION PANEL |
| MIPAS |
MICHELSON INTERFEROMETRIC PASSIVE ATMOSPHERIC SOUNDER |
| MIPS |
MISSION AND INFORMATION PLANNING SYSTEM |
| MIPS |
MILLION INSTRUCTIONS PER SECOND |
| MIRP |
MANIPULATED INFORMATION RATE PROCESSOR |
| MIRR |
MATERIAL INSPECTION AND RECEIVING REPORT |
| MIS |
MANAGEMENT INFORMATION SYSTEM (AN MIS IS AS GOOD AS A KILOMETER!) |
| MISR |
MULTI-ANGLE IMAGING SPECTRO-RADIOMETER |
| MIT |
MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
| MITI |
MINISTRY OF INTERNATIONAL TRADE AND INDUSTRY (JAPAN) |
| MIU |
MICROWAVE HUMIDITY SOUNDER INTERFACE UNIT |
| MIZ |
MARGINAL ICE ZONE |
| MIZEX |
MARGINAL ICE ZONE EXPERIMENT |
| MLA |
MULTISPECTRAL LINEAR ARRAY |
| MLE |
MESOSCALE LIGHTNING EXPERIMENT (NASA/MAP USING ONBOARD TV) |
| MLE |
MAXIMUM LIKELIHOOD ESTIMATE |
| MLI |
MULTI-LAYER INSULATION |
| MLP |
MOBILE LAUNCH PLATFORM |
| MLR |
MONODISPERSE LATEX REACTOR (NASA/LATEX PARTICLES 2 TO 40 um) |
| MLS |
MICROWAVE LIMB SOUNDER |
| mm |
MILLIMETER(S) |
| MM |
MARSHALL MANUAL |
| mm3 |
CUBIC MILLIMETER(S) |
| MMA |
MISSION MANAGEMENT AREA |
| MMC |
MARTIN MARIETTA CORPORATION |
| MMC |
MIRROR MOTION COMPENSATION |
| MMCA |
MAGNETIC MOMENT COMPENSATION ASSEMBLY |
| MMH |
MONOMETHLY HYDRAZINE |
| MMI |
MAN-MACHINE INTERFACE |
| MMIPS |
MAN-MACHINE INTERACTIVE PROCESSING SYSTEM |
| MMP |
MAGNETOSPHERIC MULTIPROBES |
| MMPF |
MICROGRAVITY AND MATERIALS PROCESSING FACILITY |
| MMS |
MULTIMISSION MODULAR SPACECRAFT |
| MMSE |
MULTI-MISSION SUPPORT EQUIPMENT |
| MMSLS |
MARTIN MARIETTA SPACE LAUNCH SYSTEMS |
| MMU |
MAGNETIC MOMENTUM UNLOADING |
| MMU |
MANNED MANEUVERING UNIT |
| MMUS |
MAGNETIC MOMENTUM UNLOADING SOFTWARE |
| MNPRB |
NOAA-NASA PROGRAM REVIEW BOARD |
| MO |
MARS OBSERVER (NASA) |
| MO |
MISSOURI OZARKS (DESIGNATION OF A MONITORED FORESTED AREA) |
| MO |
MONTH |
| MO & DSD |
MISSION OPERATIONS AND DATA SYSTEMS DIRECTORATE (NASA/GSFC) |
| MOA |
MEMORANDUM OF AGREEMENT |
| MOBILHY |
MODELE DE BILAN HYDRIQUE (FRENCH STREAM 2/PNEDC) |
| MOC |
MISSION OPERATIONS CENTER |
| MOCC |
METEOSAT/MISSIONS OPERATIONS CONTROL CENTRE |
| MOCR |
MISSION OPERATIONS CONTROL ROOM |
| MOD |
MILLISECONDS OF DAY |
| MOD/UM |
MODULATED/UNMODULATED |
| MODE |
MODE CONTROL SOFTWARE (CPU) |
| MODE |
MID-OCEAN DYNAMICS EXPERIMENT |
| Modem |
MODULATOR-DEMODULATOR (COMMUNICATIONS INTERFACE) |
| MODIS |
MODERATE-RESOLUTION IMAGING SPECTROMETER (NASA/NPOP-1) |
| MODIS-N |
MODIS NADIR (NASA/NPOP-1) |
| MODIS-N |
MODERATE RESOLUTION IMAGING SPECTROMETER-NADIR |
| MODIS-T |
MODIS-TILT (NASA/NPOP-1) |
| MODIS-T |
MODERATE RESOLUTION IMAGING SPECTROMETER-TILT |
| MODLAN |
MISSION OPERATIONS DIVISION LOCAL AREA NETWORK (NASA/MSOCC) |
| MODS |
MODIFICATIONS |
| MODSD |
MISSION OPERATIONS AND DATA SYSTEMS DIRECTORATE |
| MOI |
MOMENT OF INERTIA |
| Molniya |
USSR COMMUNICATIONS SATELLITE(S) |
| MOM |
MISSIONS OPERATIONS MANAGER |
| MOM |
MILK OF MAGNESIA |
| MON-3 |
MIXED OCICLES OF NITROGEN (NTO + 3% NO) |
| MONEX |
MONSOON EXPERIMENT |
| MOP |
MINIMUM OPERATIONAL PERFORMANCE |
| MOP |
METEOSAT OPERATIONAL PROGRAM |
| MOPITT |
MEASUREMENT OF POLLUTION IN THE TROPOSPHERE |
| MOPMIR |
MARS OBSERVER PRESSURE MODULATOR INFRARED RADIOMETER |
| MOPR |
MISSION OPERATIONS PLANNING REVIEW |
| MOPS |
MINIMUM OPERATIONAL PERFORMANCE STANDARDS |
| MOPS |
MILLION OPERATIONS PER SECOND |
| MOR |
MISSION OPERATIONS REVIEW |
| MOR |
MISSION OPERATIONS ROOM |
| MORELOS |
MORELOS (MEXICAN COMMUNICATIONS SATELLITE SYSTEM; LAUNCH) |
| MORFLOT |
SOVIET MINISTRY OF MERCHANT MARINE |
| MOS |
METAL OXIDE SEMICONDUCTOR |
| MOS |
MARINE OBSERVATION SATELLITE (JAPAN) |
| MOSP |
MISSION OPERATIONS SUPPORT PLAN |
| MOTS |
MODIFIED OFF THE SHELF |
| MOU |
MEMORANDUM OF UNDERSTANDING |
| MP |
MULTIPURPOSE |
| MP |
MEMORY PROGRAMMER |
| MPAC |
MULTIPURPOSE APPLICATION CONSOLES |
| MPC |
MULTIPLE PERIPHERAL CONTROLLER |
| MPC |
MULTIPLE PAYLOAD CARRIER |
| MPCI |
MULTIPURPOSE CUSTOM INTERFACE |
| MPD |
MAGNETOSPHERIC PARTICLE DETECTOR (NASA/NPOP-1, CURRENTS/FIELDS) |
| MPDU |
MULTIPLEXED PROTOCOL DATA UNIT |
| MPE |
MATERIALS PERFORMANCE TECHNOLOGY GROUP |
| MPESS |
MISSION PECULIAR EQUIPMENT SUPPORT STRUCTURE (NASA/CARRIER) |
| MPF |
MPS PRODUCTS FACILITY |
| MPGT |
MISSION PLANNING GRAPHICS TOOL |
| MPH |
MILES PER HOUR |
| MPS |
MULTI-PROCESSOR SYSTEM (NASA) |
| MPS |
MULTI-PROJECT SUPPORT |
| MPSE |
MEXICAN PAYLOAD SPECIALIST EXPERIMENT (PS FOR MORELOS) |
| MPSSA |
MULTI PROGRAM SUPPORT SPECIAL ACCOUNT |
| MPT |
MISSION PLANNING TERMINAL |
| MPTL |
MATERIAL PROCESSING TECHNOLOGY LABORATORY |
| MR |
MALFUNCTION REPORT |
| mr |
MILLIRADIAN |
| MR |
MANAGEMENT RESERVE |
| Mrad |
MILLIRADIANS |
| MRB |
MATERIAL REVIEW BOARD |
| MRDB |
MISSION REQUIREMENTS DATA BASE |
| MRIR |
MEDIUM-RESOLUTION INFRARED RADIOMETER |
| MRMS |
MOBILE REMOTE MANIPULATOR SYSTEM |
| MRR |
MANUFACTURING READINESS REVIEW |
| MRS |
MAIN RANGING STATION |
| MRTB |
MISSILE RESEARCH TEST BUILDING |
| MRWG |
MISSION REQUIREMENTS WORKING GROUP |
| MS |
MARGIN OF SAFETY |
| ms |
MILLISECOND(S) |
| MS |
MISSION SPECIALIST (NASA/SHUTTLE CREW MEMBER FOR SPECIFIC MISSION) |
| MSAT |
MOBILE SATELLITE (NASA/SHUTTLE FOR ADVANCED GROUND TECHNOLOGIES) |
| MSB |
MOST SIGNIFICANT BIT |
| MSC |
MANNED SPACE CENTER (NASA/NOW JSC) |
| MSC |
METEOROLOGICAL SATELLITE CENTER (JAPAN) |
| MSC |
MISSION SATELLITE CENTER |
| MSC |
MOBILE SERVICING CENTER |
| MSDF |
MULTISOFTWARE DEVELOPMENT FACILITY |
| MSDF |
MULTI-PROCESSOR SOFTWARE DEVELOPMENT FACILITY |
| MSE |
MAINTENANCE SUPPORT EQUIPMENT |
| MSFC |
MARSHALL SPACE FLIGHT CENTER (NASA, HUNTSVILLE, AL) |
| MSFE |
MECHANISMS OF SOIL FORMATION AND EVOLUTION |
| MSGP |
MICROWAVE SOUNDER FOR GEOSTATIONARY PLATFORM (NASA) |
| MSI |
MULTISPECTRAL IMAGE |
| MSIS |
MAN-SYSTEMS INTEGRATION STANDARDS |
| MSL |
MATERIALS SCIENCE LABORATORY (NASA/SHUTTLE PAYLOAD FOR LOW-g's) |
| MSOCC |
MULTI-SATELLITE OPERATIONS CONTROL CENTER (NASA/GSFC) |
| MSP |
MICROMETEOROLOGICAL SENSOR PROCESSOR |
| MSR |
MONTHLY STATUS REVIEW |
| MSR |
METEOSAT SCANNING RADIOMETER |
| MSR |
MICROWAVE SCANNING RADIOMETER (JAPAN/MOS) |
| MSS |
MESSAGE SWITCHING SYSTEM (NASA) |
| MSS |
MULTI-SPECTRAL SCANNER (LANDSAT) |
| MSS |
MISSION SPECIALIST STATION |
| MSS |
MASS STORAGE SYSTEM |
| MST |
MAIN SATELLITE THRUSTER |
| MST |
MISSILE SERVICE TOWER |
| MST |
MOSCOW STANDARD TIME |
| MST |
MODIS SCIENCE TEAM |
| MSU |
MICROWAVE SOUNDING UNIT (TIROS-N) |
| MTA |
MAN TENDED APPROACH |
| MTBF |
MEAN TIME BETWEEN FAILURE |
| MTBI |
MEAN TIME BETWEEN INTERRUPTS |
| MTBM |
MEAN TIME BETWEEN MALFUNCTION |
| MTCT |
MANIPULATOR/TELEOPERATOR CONTROL TECHNOLOGY |
| MTF |
MODULATION TRANSFER FUNCTION |
| MTI |
MORTON THIOKOL, INC. |
| MTIRI |
MULTI-SPECTRAL THERMAL INFRARED IMAGER |
| MTL |
MATERIALS TECHNOLOGY LABORATORY |
| MTO |
MAN-TENDED OPTION |
| MTP |
MASTER TEST PLAN |
| MTR |
MEAN TIME TO REPAIR |
| MTR |
MATERIALS TECHNOLOGY REPORT |
| MTR |
MAGNETIC TORQUE ROD |
| MTS |
MICROWAVE TEMPERATURE SOUNDER |
| MTS |
MARINE TECHNOLOGY SOCIETY |
| MTTF |
MEAN TIME TO FAILURE |
| MTTR |
MEAN TIME TO REPAIR |
| MTU |
MASTER TIMING UNIT |
| MU |
MICROWAVE UNIT |
| MUX |
MULTIPLEXER |
| mV |
MILLIVOLT(S) |
| Mv |
MAGNITUDE OF A STAR (VISUAL) |
| MVA |
MUTUAL VIRTUAL SYSTEMS |
| MVP |
MUTUAL VISIBILITY PERIOD |
| MW |
MOMENTUM WHEEL |
| mW |
MILLIWATT |
| mw |
MICROWAVE (ALSO uWAVE, BUT "M" CAN BE CONFUSED WITH "MILLI") |
| MW |
MIDWAVE |
| MWA |
MOMENTUM WHEEL ASSEMBLY/ASSEMBLIES |
| MWord |
MEGAWORD OF MEMORY (1MWORD = 2** 10KWORDS = 2**20WORDS+ |
| MY |
MULTIYEAR (SEA ICE) |
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