| ACRONYM |
DESCRIPTION |
| O & A |
ORBIT AND ATTITUDE (PARAMETERS) |
| O & C |
OPERATIONS AND CHECKOUT |
| O & M |
OPERATIONS & MAINTENANCE |
| O/A |
OPERATIONS/ADMINISTRATION |
| O2 |
OXYGEN |
| OA |
OUTPUT ACKNOWLEDGE |
| OAD |
ORBIT AND ATTITUDE DETERMINATION |
| OAO |
OFFICE OF AIRCRAFT OPERATIONS (NOAA) |
| OAP |
ORBIT ADJUST PROPULSION SYSTEM |
| OAPS |
ORBIT ADJUST PROPULSION SUBSYSTEM |
| OAR |
OCEANIC AND ATMOSPHERIC RESEARCH (NOAA, ROCKVILLE, MD) |
| OASM |
OPERATIONAL ANALYSIS SUPPORT MODEL |
| OASPL |
OVERALL SOUND PRESSURE LEVEL |
| OAST |
OFFICE OF AERONAUTICS AND SPACE TECHNOLOGY (NASA) |
| OATS |
ORBIT AND ATTITUDE TRACKING SYSTEM |
| OATS |
OPTICAL ATTITUDE TRANSFER SYSTEM |
| OATS/DM |
ORBIT AND ATTITUDE TRACKING SYSTEM/DISPLAY MONITOR |
| OBC |
ONBOARD COMPUTER |
| OBCP |
ON-BOARD COMPUTER PROGRAM |
| OBS |
ORGANIZATIONAL BREAKDOWN STRUCTURE |
| OC |
OPERATIONAL CAPABILITY |
| OCC |
OGE CONTROL COMPUTER (PART OF MSOCC-ICC) |
| OCC |
OPERATIONS CONTROL CENTER |
| OCI |
OCEAN COLOR INSTRUMENT/IMAGER (PROPOSE FOLLOW-ON TO CZCS (SEAWIFS) |
| ocm |
ORBIT CORRECTION MANEUVER |
| OCP |
OFFICE OF COMMERCIAL PROGRAMS |
| OCPP |
CLOUD PHOTOPOLARIMETER |
| OCS |
OPERATIONAL CONTROL SEGMENT |
| OCZ |
OPERATIONAL CONTROL ZONE |
| OD |
OUTSIDE DIAMETER |
| ODAPS |
OGE DATA ACQUISITION AND PATCHING SYSTEM/SUBSYSTEM |
| ODAS |
OCEAN DATA ACQUISITION SYSTEM (NASA/GSFC AIRCRAFT SYSTEM) |
| ODB |
OPERATIONS DATA BASE |
| ODM |
OPERATIONAL DATA MESSAGE |
| ODN |
OPERATIONS DEVICE NETWORK (NASA/MSOCC) |
| ODP |
OCI DATA PROCESSOR |
| ODR |
OUTPUT DATA REQUEST |
| ODS |
ORDINANCE DEVICE SIMULATOR |
| ODW |
OMEGA DROP WINDSONDE |
| OEM |
ORIGINAL EQUIPMENT MANUFACTURER |
| OEX |
ORBITER EXPERIMENTS (NASA/ENGINEERING EXPERIMENTS ON SHUTTLE) |
| OFCM |
OFFICE OF THE FEDERAL COORDINATOR FOR METEOROLOGY |
| OFT |
OPTICAL FOURIER TRANSFORM |
| OFT |
ORBITAL FLIGHT TEST |
| OGCM |
OCEAN GENERAL CIRCULATION MODEL |
| OGE |
OPERATIONAL/OPERATIONS GROUND EQUIPMENT |
| OGO |
ORBITING GEOPHYSICAL OBSERVATORY |
| OHA |
OPERATIONS HAZARDS ANALYSIS |
| OI |
OPERATING INSTRUCTIONS |
| OI |
OPERATIONAL INSTRUMENTATION |
| OIM |
OXYGEN INTERACTION (NASA/SHUTTLE OXYGEN RATES WITH MATERIALS) |
| OIS |
OGE INPUT SIMULATOR |
| OIS |
OPERATIONAL INTERCOMMUNICATION SYSTEM |
| OJT |
ON-THE-JOB TRAINING |
| oK |
DEGREE DIFFERENCE, KELVIN |
| OLR |
OUTGOING LONG-WAVE RADIATION |
| OLS |
OPERATIONAL LINESCAN SYSTEM (DMSP) |
| OMB |
OFFICE OF MANAGEMENT AND BUDGET |
| OMB |
OPERATIONS AND MAINTENANCE BRANCH (NESDIS/NODC, WASHINGTON, DC) |
| OMCF |
ORBITER MAINTENANCE AND CHECKOUT FACILITY |
| OMG |
OCEAN MONITORING PAYLOAD GROUP |
| OMI |
OPERATIONS MAINTENANCE INSTRUCTION |
| OMP |
OCEAN MICROWAVE PACKAGE |
| OMRS |
OPERATIONS AND MAINTENANCE REQUIREMENTS SPECIFICATION |
| OMRSD |
OPERATIONS AND MAINTENANCE REQUIREMENTS SPECIFICATION DOCUMENT |
| OMS |
ORBITAL MANEUVERING SYSTEM |
| OMS |
OPERATIONS MANAGEMENT SYSTEM |
| OMSWG |
OPERATIONS AND MAINTENANCE SECURITY WORKING GROUP |
| OMV |
ORBITAL MANEUVERING VEHICLE |
| OMVCC |
ORBITAL MANEUVERING VEHICLE CONTROL CENTER |
| ONDCP |
OFFICE OF NATIONAL DRUG CONTROL POLICY |
| ONR |
OFFICE OF NAVAL RESEARCH (DoD) |
| OO |
OBJECT ORIENTED |
| OOAM & S |
ON-ORBIT ASSEMBLY, MAINTENANCE AND SERVICING |
| OOS |
OFFICE OF OCEAN SERVICES (NOS) A.K.A. PAUL FRIDAY "WIZARD OF OOS" |
| OP |
OPERATIONAL PROCESSING |
| OPD |
OPERATIONS DOCUMENT |
| OPDIB |
OCEAN POLLUTION DATA AND INFORMATION BRANCH (NESDIS/NODC, WASH DC) |
| OPEN |
ORIGIN OF PLASMA IN EARTH'S NEIGHBORHOOD |
| OPER |
OPERATIONAL |
| OPF |
OFFICIAL PERSONNEL FOLDER (201) (SF 66) |
| OPF |
ORBITER PROCESSING FACILITY (NASA) |
| OPM |
OFFICE OF PERSONNEL MANAGEMENT |
| OPM |
OPERATIONS MESSAGE |
| OPR |
OFFICE OF PRIMARY RESPONSIBILITY |
| OPS |
OPERATIONS |
| OPSCATT |
OPERATIONAL SCATTEROMETER |
| OPSEC |
OPERATIONS SECURITY |
| OPSU |
OXIDIZER AND PRESSURANT SERVICE/SERVICING UNIT |
| OPSU |
OXIDIZER PROPULSION SERVICING UNIT |
| OR |
DEGREES RANKINE |
| ORA |
OFFICE OF RESEARCH AND APPLICATIONS (NESDIS, CAMP SPRINGS, MD) |
| ORBTR |
ORBITER (NAME OF THE SHUTTLE ORBITER, ALSO OV-#) |
| ORFEUS |
ORBITING AND RETRIEVABLE FAR AND EXTREME ULTRAVIOLET SPECTROMETER |
| ORG |
ORGANIZATION |
| ORI |
OPERATIONS RESEARCH INCORPORATED |
| ORI |
OPERATIONAL READINESS INSPECTION |
| ORLA |
OPTIMUM REPAIR LEVEL ANALYSIS |
| ORR |
ORRORAL VALLEY, AUSTRALIA, STDN STATION |
| ORR |
OPERATIONS READINESS REVIEW |
| ORS |
OFFSET RADIATION SOURCE |
| ORS |
ORBITER REFUELING SYSTEM (NASA/STS's ON-ORBIT SATELLITE REFUELING) |
| ORSTOM |
OFFICE DE LA RECHERCHE SCIENTIFIQUE ET TECHNIQUE OUTRE-MER (FRANCE) |
| ORU |
ORBITAL REPLACEMENT UNIT |
| ORU |
OPERATIONAL REPLACEMENT UNIT |
| OS |
OPERATING SYSTEM |
| OSA |
ORBITAL SUN ANGLE(S) |
| OSB |
OCEANIC SCIENCES BRANCH (NESDIS/ORA, SUITLAND, MD) |
| OSC |
OSCILLATOR |
| OSCAR |
OSCAR (U.S. NAVY NAVIGATIONAL SATELLITE) |
| OSCD |
OPERATIONS SUPPORT COMPUTING DIVISION |
| OSCF |
OPERATIONS SUPPORT COMPUTING FACILITY |
| OSD |
OFFICE OF SYSTEMS DEVELOPMENT (NESDIS, SUITLAND, MD) |
| OSDPD |
OFFICE OF SATELLITE DATA PROCESSING AND DISTRIBUTION (NESDIS) |
| OSDPD |
OFFICE SPACE DATA PROCESSING AND DISTRIBUTION (NOAA) |
| OSF |
OFFICE OF SPACE FLIGHT |
| OSHA |
OCCUPATIONAL SAFETY AND HEALTH ACT |
| OSI |
OPEN SYSTEMS INTERCONNECTION |
| OSID |
OPERATIONS SYSTEM INTERFACE DOCUMENT |
| OSIP |
OPERATIONAL SATELLITE IMPROVEMENT PROGRAM |
| OSL |
ORBITING SOLAR LABORATORY (NASA/STAR AND SUN STUDY) |
| OSO |
OFFICE OF SATELLITE OPERATIONS (NESDIS, SUITLAND, MD) |
| OSO |
OPERATIONS SCHEDULING OFFICE |
| OSO |
OFFICE OF SPACE OPERATIONS |
| OSOP |
OFF-SITE OPERATIONS PLAN |
| OSR |
OPTICAL SOLAR REFLECTOR |
| OSS |
OFFICE OF SPACE SCIENCE (NASA) |
| OSS |
OFFICE OF SPACE STATIONS |
| OSSA |
OFFICE OF SPACE SCIENCE AND APPLICATIONS (NASA) |
| OSSE |
OBSERVING SYSTEM SIMULATION EXPERIMENTS |
| OSSMA |
OFFICE OF SYSTEMS AND MISSION ASSURANCE |
| OST |
OTV SERVICING TECHNOLOGY |
| OSTA |
OFFICE OF SPACE AND TERRESTRIAL APPLICATIONS (NASA) |
| OSTA-1 |
OSTA PAYLOAD FOR SHUTTLE ATTACHED PAYLOAD USING SIR-A |
| OSTA-2 |
OSTA PAYLOAD FOR uGRAVITY EXPERIMENTS |
| OSTA-3 |
OSTA PAYLOAD FOR PHOTOGRAPHY AND RADAR IMAGES OF THE EARTHS SURFACE |
| OSTDS |
OFFICE OF SPACE TRACKING AND DATA SYSTEMS |
| OSTP |
OFFICE OF SCIENCE & TECHNOLOGY POLICY |
| OSTS |
OFFICE OF SPACE TRANSPORTATION SYSTEMS |
| OTDA |
OFFICE OF TRACKING AND DATA ACQUISITION |
| OTS |
ORBITAL TRACKING SYSTEM |
| OTU |
OUTPUT TERMINAL UNIT |
| OTV |
ORBITAL TRANSFER VEHICLE |
| OV 102 |
NASA "ORBITAL VEHICLE" 102 (COLUMBIA SHUTTLE) |
| OV 103 |
NASA "ORBITAL VEHICLE" 103 (DISCOVERY SHUTTLE) |
| OV 104 |
NASA "ORBITAL VEHICLE" 104 (ATLANTIS SHUTTLE) |
| OV 105 |
NASA "ORBITAL VEHICLE" 105 REPLACEMENT FOR SHUTTLE FLEET |
| OVLBI |
ORBITING VERY LONG BASELINE INTERFEROMETRY |
| OVR |
ON-ORBIT VERIFICATION REVIEW |
| OWG |
OPERATIONS WORKING GROUP (GENERIC) |
