|
ACRONYM
|
DEFINITION
|
CONTRIBUTOR
|
R |
Degree Rankine |
CASI |
R&A |
Research and Analysis |
CASI |
R&D |
Research and Development |
CASI |
R&DCS |
Research and Development Contract
Search |
CASI |
R&DPP |
Research and Development Program
Planning (Database) (DTIC) |
Langley |
R&I |
Receiving and Inspection |
Goddard |
R&M |
Reliability and Maintainability |
Goddard |
R&O |
Routing and Operations |
Goddard |
R&PM |
Research and Program Management
(NASA) |
Langley |
R&PM |
Research and Programmatic Management |
Goddard |
R&QA |
Reliability and Quality Assurance |
Goddard |
R&R |
Retention and Release |
Goddard |
R&RR |
Range and Range Rate |
Goddard |
R&SFP |
Research and Study Fellowship
Program |
Goddard |
R&T |
Research and Technology |
Langley |
R/BPA |
Rudder/Pedal Brake Assembly (Space
Shuttle) |
CASI |
R/SPAR |
Receiver/Software Programmable
Advanced Receiver |
Goddard |
RA |
RADAR Altimeter (Aviation) |
Langley |
RA |
Research Announcement |
Langley |
RA |
Resource Analyst |
Goddard |
RA |
Right Ascension |
Goddard |
RA5C Aircraft |
(A 3J Aircraft, Vigilante Aircraft,
or JRA5C Aircraft) |
CASI |
RAAF |
Royal Australian Air Force |
CASI |
RAC |
Remote Access Computer (UARS) |
Goddard |
RAC |
Rigid Array Carrier |
Goddard |
RAC |
Risk Assessment Code |
Langley |
RAC |
Reactor Accident Calculation
(Computer program) |
CASI |
RACMO |
Regional Atmospheric Climate
Model |
Goddard |
RAD |
Radiation Absorbed Dose |
CASI |
RADA |
Random Access Discrete Address
System |
CASI |
RADAM Project |
Radar of the Amazon (Aerial survey
project in Brazil similar to LANDSAT) |
CASI |
Radar |
Radio Detection and Ranging |
CASI |
RADARSAT |
RADAR Satellite (Canada) |
Langley |
RADC |
Rome Air Development Center |
Langley |
RADC |
Rome Air Development Center Griffins
Air Force Base, NY |
CASI |
RADCAL |
Radar Calibration Satellite |
CASI |
RADCAT |
Radar Calibration Targets |
CASI |
RADL |
Robotics Applications Development
Laboratory |
CASI |
RADM |
Regional Acid Decomposition Model |
CASI |
RADS |
(Radiation Dose Absorbed by Tissue) |
CASI |
RADSCAT |
RadiometerScatterometer |
CASI |
RAE |
Royal Aeronautical Establishment |
Langley |
RAE |
Radio Astronomy Explorer |
CASI |
RAE |
Royal Aircraft Establishment
(Great Britain) |
CASI |
RAE 2 |
Explorer 49 |
CASI |
RAE B |
Explorer 49 |
CASI |
RAID |
Redundant Array of Inexpensive
Disks |
Goddard |
RAIL |
Runway Alignment Indicator Lights |
CASI |
RAL |
Rutherford Appleton Laboratory
(UK) |
Goddard |
RALPH |
Resource Allocation Planning
Helper |
Langley |
RAM |
Responsibility Assignment Matrix
(NASA) |
Langley |
RAM |
Radar Absorbing Material |
CASI |
RAM |
Random Access Memory |
CASI |
RAM |
Research and Applications Module
(Space Shuttle and Space Station) |
CASI |
RAM C |
Radio Attenuation Measurement
C Band |
Langley |
RAM Project |
Radio Attenuation Measurement
Project |
CASI |
RAME |
Rarefied-Flow Aerodynamics Measurement
Experiment |
Langley |
RAME |
Rarified-flow Aerodynamic Measurement
Experiment (AFE) |
Langley |
RAMIS |
Remote Access Management Information
System |
Goddard |
RAMP |
Rapid Acquisition of Manufactured
Parts |
Goddard |
RAMS |
Regional Atmospheric Modeling
System |
Goddard |
RAMTAC |
Reentry Analysis |
CASI |
RANN |
Research Applied to National
Needs |
CASI |
RANS |
Reynolds Averaged Navier-Stokes |
CASI |
RAO |
Resource Analysis Office |
Goddard |
RAPCON |
Radar Approach Control Facility
(USAF) |
CASI |
RAPID |
Rapid Airplane Program Input
Design |
Langley |
RAPID |
Research with Adaptive Particle
Imaging Detectors |
Goddard |
RAPPI |
Random Access Plan Position Indicators |
CASI |
RAPS |
Rotating Azimuth Plane Scans |
CASI |
RAR |
Reliability Assessment Report |
Goddard |
RARDE |
Royal Armament Research and Development
Establishment (Great Britain) |
CASI |
RAS |
Refractive Aberrated Simulator |
Goddard |
RAS |
Remote Access Services |
Langley |
RAS |
Roll Aspect System |
Goddard |
RAS |
Row Address Strobe |
Goddard |
RAS/CAL |
Refractive Aberrated Simulator/Calibrator |
Goddard |
RAS/HOMS |
Refractive Aberrated Simulator/Hubble
Opto-Mechanics Simulator |
Goddard |
RASCAL |
Random Access Secure Communication
AntiJam Link |
CASI |
RASS |
Radar Acoustic Sounding System |
CASI |
RASSAS |
Radio Astronomical Space System
of Aperture Synthesis |
CASI |
RAT |
Report Authoring Tools |
CASI |
RATCF |
Radar Air Traffic Control Facility
(USN) |
CASI |
RATSCAT |
Radar Target Scatter Site (Program) |
CASI |
RAVE |
Research on Atmospheric Volcanic
Emission |
CASI |
RBCC |
rocket-based combined cycle |
Langley |
RBE |
Relative Biological Effectiveness |
Langley |
RBM |
Radial Bay Module |
Goddard |
RBM |
Radiation Belt Mapper |
CASI |
RBM |
Radiation Belt Mappers |
Goddard |
RBM |
Radiation Belt Monitor |
Goddard |
RBS |
Rutherford Backscattering Spectrometry |
CASI |
RBV |
Return Beam Vidicon (Type of
camera used in ERTS1 satellite) |
CASI |
|
|
|
RC |
Radiative-connective |
Goddard |
RC |
Resistance Capacitance |
CASI |
RCA |
Radiative Cooler Assembly |
Goddard |
RCA |
Radio Corporation of America |
CASI |
RCAF |
Rail Connector and Alignment
Fixture |
Goddard |
RCAF |
Royal Canadian Air Force |
CASI |
RCAG |
Remote Communications Air Ground
(facility) |
CASI |
RCB |
Re-Configuration Buffer |
Goddard |
RCC |
Recovery Control Center |
CASI |
RCC |
Reinforced Carbon Carbon |
CASI |
RCD |
Resource Content Description |
CASI |
RCHP |
Random Hexagonal Close Packed
(crystal structure) |
CASI |
RCL |
Radio Communication Link |
CASI |
RCL |
Robot Command Language |
CASI |
RCLF |
Runway Centerline System |
CASI |
RCM |
Reliability Centered Maintenance |
Goddard |
RCN |
Requirements Change Notice |
Goddard |
RCP |
Right Circular Polarization |
CASI |
RCR |
Runway Condition Reading |
CASI |
RCRA |
Resource Conservation and Recovery
Act |
CASI |
RCS |
Reaction Control System (or Subsystem)
(Steering system in spacecraft) (NASA) |
Langley |
RCS |
Reaction Control System |
CASI |
RCS/VCS |
Reaction Control System/Vernier
Control System |
Goddard |
RCSM |
Regional Climate System Model |
Goddard |
RCSP |
Radar Calibration Spheres Project |
CASI |
RDA |
Recommended Dietary Allowance |
CASI |
RDB |
Relational Data Base |
CASI |
RDBMS |
Relational Database Management
System |
Goddard |
RDC |
Regional Dissemination Centers |
CASI |
RDD |
Requirements Definition Document |
CASI |
RDD |
Return Data Delay |
Goddard |
RDE |
Responsible Design Engineer |
Goddard |
RDF |
Radar Direction Finder |
CASI |
RDF |
Radial Distribution Function |
CASI |
RDF |
Radio Direction Finder |
CASI |
RDF |
Resource Description Format (or
Framework) |
CASI |
RDF |
Reverse Domain Filling |
CASI |
RDM |
Radiation Design Margin |
Goddard |
RDP |
Report Documentation Page |
CASI |
RDP |
RadarData Processing |
CASI |
RDT&E |
Research, Development, Test,
and Engineering |
Langley |
RDTE |
Research, Development, Test,
and Evaluation |
Langley |
RDX |
Cyclotrimethylene Trinitramine |
CASI |
RDX |
TrinitroTriazocyclohexane |
CASI |
RE |
Radiated Emissions |
Goddard |
REAUMUR Scale |
(Ice point to steam point divided
into 80 parts) |
CASI |
REB |
Relativistic Electron Beams |
CASI |
RECON |
Remote Console (NASA computer) |
Langley |
RECON |
REsearch CONnection |
CASI |
RECP |
Record Engineering Change Proposal |
Goddard |
REDEX |
Ranging Equipment Diagnostic
EXpert system |
CASI |
REE |
Responsible Equipment Engineer |
Goddard |
REE |
Rare Earth Elements |
CASI |
REEF |
Regression Estimation of Event
Probabilities |
CASI |
REEP |
Renewable Energy Education Program |
Langley |
REFLEQS |
REactive FLow EQuation Solver |
CASI |
REFLEX |
Return Flux Experiment |
Goddard |
REFRASIL |
(Insulation material in Rocket
Motor Cases) |
CASI |
REIL |
RunwayEnd Identifier Lights |
CASI |
RELAB |
Reflectance Experiment Laboratory
(at Brown Univ.) |
CASI |
REM |
Refocusing Mechanism |
Goddard |
REM |
Remote Extension Moscow |
Goddard |
REM |
Release Engagement Mechanism |
CASI |
REM |
Roentgen Equivalent Man |
CASI |
RENE |
Rocket Engine Nozzle Ejector
(Program) |
CASI |
REOS |
Rare Earth Oxysulfide |
CASI |
REOS |
Regulated Emergency Oxygen System |
CASI |
REP |
Radioisotope Electric Propulsion |
CASI |
REP |
Relativistic Electron Precipitation |
Goddard |
REQ |
Request |
CASI |
RER |
Receiver-Exciter Ranging |
Goddard |
RES |
Reticula Endothelial System |
CASI |
RETORC |
Research Torpedo Configuration |
CASI |
REV |
Revolution |
CASI |
REX |
Remote Interface Unit Exerciser |
Goddard |
REX |
Radiation Experiment |
CASI |
REX |
Reflector Erosion Experiment |
CASI |
REX |
Relativistic Electronbeam Experiment |
CASI |
|
|
|
RF |
Radio Frequency |
CASI |
RFA |
Request For Action |
Goddard |
RFC |
Request for Change |
Goddard |
RFC |
Regenerative Fuel Cell |
CASI |
RFD |
Research Flight Deck |
Langley |
RFDIP |
Research Flight Deck Interface
Pallet |
Langley |
RFDIU |
Research Flight Deck Interface
Unit |
Langley |
RFE |
Receiver Front End |
Goddard |
RFE |
Request for Estimate |
Langley |
RFI |
Radio Frequency Interference |
CASI |
RFI |
Remote File Inquiry |
CASI |
RFI |
Request For Information |
CASI |
RFI |
Resin Film Infusion |
CASI |
RFO |
Request for Offer |
Goddard |
RFP |
Request for Proposal |
CASI |
RFQ |
Request for Quotation |
Goddard |
RFS |
Request for Services |
Langley |
RFSOC |
Radio Frequency SOC |
Goddard |
RFTE |
Regenerative Feedback Turbine
Engine |
CASI |
RFTR |
Rocket Fuel Test Reactor |
CASI |
RFTS |
Radio Frequency Interference |
Goddard |
RGA |
Rate Gyro Assembly |
Goddard |
RGA |
Reflection Grating Assembly |
Goddard |
RGA |
Residual Gas Analysis |
Goddard |
RGA |
Residual Gas Analyzer |
Goddard |
RGA |
Rate Gyro Assembly (Space Shuttle) |
CASI |
RGB |
Red, Green, Blue |
Goddard |
RGMM |
Reduced Geometric Math Model |
Goddard |
RGP |
Rate Gyro Package |
CASI |
RGPS |
Radarsat Geophysical Processor
System |
Goddard |
RGS |
Reflection Grating Spectrometer (on XMM) |
CASI |
RH |
Red High |
Goddard |
RH |
Relative Humidity |
CASI |
RHARE |
Radiative Heating and Afterbody
Radiometry Experiments |
Langley |
RHCP |
Right-Hand Circular Polarization |
Goddard |
RHE/ARE |
Radiative Heating Experiment/Afterbody
Radiometer Experiment (AFE) |
Langley |
RHET |
Resonant Tunneling Hot Electron
Transistor |
CASI |
RHS |
Rehydration Station |
CASI |
RIACS |
Research Institute for Advanced
Computer Science |
CASI |
RIAF |
Radial Instrument Alignment Fixture
(WFPC) |
Goddard |
RIAL |
Rock Island Arsenal Labs., IL |
CASI |
RIC |
Rockwell International Corp. |
CASI |
RICHEL |
Richmond Cape Henry Environmental
Laboratory |
CASI |
RICMOS |
Radiation Insensitive Complementary
Metal Oxide Semiconductor |
Goddard |
RID |
Review Item Discrepancy |
Goddard |
RID |
Review Item Disposition |
Goddard |
RID |
Range Instruments Development |
CASI |
RIE |
Remote Interface Electronics |
Goddard |
RIF |
ReductionsInForce |
CASI |
RIFT |
Reactor InFlight Test (Project) |
CASI |
RIG |
Rate Integrating Gyro |
Goddard |
RIKEN |
Institute of Physical and Chemical
Research in Japan |
Goddard |
RIM |
Recorder Interface Module |
Langley |
RIM |
Research Information Management |
Langley |
RIMS |
Retarding Ion Mass Spectrometer |
CASI |
RISC |
Reduced Instruction Set Computer |
CASI |
RITA HUMS |
Rotorcraft Industry Technology
Association, Health and Usage Monitoring Systems |
Langley |
RITE |
Regenerative Intercooled Turbine
Engine |
CASI |
RITS |
Receiving Inspection and Testing
System |
Goddard |
RIU |
Remote Interface Unit |
Goddard |
|
|
|
RK |
Repair Kit |
Goddard |
RL |
Red Low |
Goddard |
RLAT |
Radiation Lot Acceptance Test |
Goddard |
RLIN |
Research Libraries Information
Network |
Langley |
RLV |
Reusable Launch Vehicle |
Goddard |
RLV |
RankineLike Vortex |
CASI |
RLV |
Reusable Launch Vehicles |
CASI |
RM |
Release Mechanism |
Goddard |
RM |
Remote Module |
Goddard |
RM |
Resources Manager |
Goddard |
RM |
Resources Monitor |
Goddard |
RM |
Retrieval Manager |
Goddard |
RM |
Retrieval Mode |
Goddard |
RM |
Redundancy Management |
CASI |
RM&QA |
Reliability, Maintainability
and Quality Assurance |
Goddard |
RM/S |
Resources Monitor/Scheduler |
Goddard |
RMA |
Reliability, Maintainability,
Availability |
Goddard |
RMC |
Relay Matrix Control |
Goddard |
RMC |
Rotating Modulation Collimators |
Goddard |
RMCW |
Random Modulation Continuous
Wave |
CASI |
RME |
Radiation Monitoring Equipment |
CASI |
RME3 |
Radiation Monitoring Experiment |
CASI |
RMEA |
Retrieval Mode Electronics Assembly |
Goddard |
RMFT |
Reconnect Magnetic Flux Tubes |
CASI |
RMGA |
Retrieval Mode Gyro Assembly |
Goddard |
RMIS |
Resources Management Information
System |
Langley |
RMO |
Resident Management Office |
Goddard |
RMO |
Resources Management Office |
Goddard |
RMO |
Retrieval Mode Operations |
Goddard |
RMP |
Rate Measuring Package |
CASI |
RMP |
Risk Management Plan |
Goddard |
RMS |
Root Mean Square (Physics, statistics) |
Langley |
RMS |
Root Mean Squared |
Goddard |
RMS |
Remote Manipulator System |
CASI |
RMS |
Root Mean Square |
CASI |
rmse or RMSE |
root mean square error |
CASI |
RMSS |
Remote Manipulator System Simulator |
Goddard |
RMU |
Remote Maneuvering Unit |
CASI |
RNA |
Ribonucleic Acid |
CASI |
RNAV |
Random Navigation Area Navigation |
CASI |
RNLA |
Royal Netherlands Army |
CASI |
RNO |
Responsive NASA Official |
Goddard |
RNPRC |
Royal Naval Personnel Research
Committee (Great Britain) |
CASI |
ROC |
Reduced Operations Center |
CASI |
ROC |
Regional Oxygen Concentration |
CASI |
ROCSAT-1 |
Republic of China Satellite –
Flight 1 |
Goddard |
ROE |
Reflector Orbital Experiment |
CASI |
ROI |
Replacement of Obsolete Items |
Goddard |
ROI |
Return On Investment |
Goddard |
ROIC |
Readout Integrated Circuit |
CASI |
ROM |
Read Only Memory |
CASI |
ROM |
Rough Order of Magnitude |
CASI |
ROMPS |
Robotic Materials Processing
System |
CASI |
ROS |
Remotely Operated Shutter |
CASI |
ROS |
Research Operations Support |
Goddard |
ROSAT |
(German/U.S. X-ray Observatory)
Rötgensatellit |
CASI |
ROSAT |
Roentgen Satellite |
CASI |
ROSE |
Request Oriented Scheduling Engine |
Goddard |
ROSE |
Remotely Operated Special Equipment |
CASI |
ROSI |
Raytheon Optical Systems Incorporated |
Goddard |
ROSS |
Remote Orbital Servicing System |
CASI |
ROTO |
Roll Out and Turn Off |
CASI |
ROTV |
Reusable Orbital Transfer Vehicle |
CASI |
ROWS |
RADAR Ocean Wave Spectrometer |
Langley |
RP |
Recommended Practice |
Goddard |
RP |
Reference Publication |
Langley |
RP |
Research Paper |
Goddard |
RPC |
Registration and Product Control |
Langley |
RPC |
Remote Power Controller |
CASI |
RPCS |
Registration and Product Control
System |
CASI |
RPE |
Rocket Propulsion Establishment
(Great Britain) |
CASI |
RPM |
Revolutions Per Minute |
Goddard |
RPO |
Revolutions Per Orbit |
Goddard |
RPOC |
Responsible Point-of-Contact |
Goddard |
RPPO |
Regional Printing Procurement
Office |
Langley |
RPRV |
Remotely Piloted Research Vehicle |
CASI |
RPS |
Redundant Protective System |
Goddard |
RPSS |
Remote Proposal Support System |
Goddard |
RPU |
Receiver Processor Unit |
Goddard |
RPV |
Remotely Piloted Vehicle |
Langley |
RPV |
Remote Piloted Vehicles |
CASI |
RR |
Recharge Ratio |
Goddard |
RR |
Requirements Review |
Goddard |
RRA |
Resident Research Associateship |
CASI |
RRAS |
Radio frequency Resonance Absorption |
CASI |
RRC |
RFC Review Committee |
Goddard |
RRE |
Royal Radar Establishment (Great
Britain) |
CASI |
RRW |
Rate Random Walk |
Goddard |
RS |
Radiation Susceptibility |
Goddard |
RS |
Reed-Solomon Error Correction
Encoding |
Goddard |
RS |
Requirements Specification |
Goddard |
R-S |
Reed-Solomon |
Goddard |
RS |
Robotic Servicer |
CASI |
|
|
|
RSA |
Right Shift Algorithm |
CASI |
RSA |
RivestShamirAdleman (encryption
key/digital signatures) |
CASI |
RSA |
Russian Space Agency |
Goddard |
RSB |
Research Support Branch of ST
Sci |
Goddard |
RSB |
Rudder Speed Brake |
CASI |
RSC |
Range Safety Command |
CASI |
RSDO |
Rapid Spacecraft Development
Office |
Goddard |
RSI |
Radial Scientific Instrument |
Goddard |
RSI |
Resources Systems, Inc. |
Goddard |
RSI |
Repetitive Stress Injuries |
CASI |
RSI |
Reusable Surface Insulation |
CASI |
RSIC |
Redstone Scientific Information
Center, Redstone Arsenal, AL |
CASI |
RSIL |
Research System Integration Laboratory |
Langley |
RSIPE |
Radial Science Instrument Protective
Enclosure |
Goddard |
RSMAS |
Rosentiel School of Marine and
Atmospheric Science, University of Miami |
Goddard |
RSN |
Remote Services Node |
Goddard |
RSR |
Resources Status Report |
Goddard |
RSRA |
Rotor Systems Research Aircraft |
CASI |
RSRE |
Royal Signals and RADAR Establishment |
Langley |
RSRM |
Redesign Solid Rocket Motor |
Goddard |
RSRM |
Redesigned Solid Rocket Motor |
CASI |
RSS |
Resources Status Review |
Goddard |
RSS |
Root Sum Square |
CASI |
RSS |
Rotating Service Structure |
CASI |
RSTN |
Radio Solar Telescope Network |
CASI |
RSU |
Rate Sensor Unit |
Goddard |
RSU |
Remote Sensing Unit |
Goddard |
RSVP |
Restartable Solid Variable Pulse
(Rocket engine) |
CASI |
RT |
Real Time |
Goddard |
RT |
Recertification Team |
Langley |
RT |
Remote Terminal |
Goddard |
RTAC |
Research and Technology Advisory
Council |
CASI |
RTC |
Real-Time Clock |
Goddard |
RTC |
Real-Time Command |
Goddard |
RTCA |
Radio Technical Commission for
Aeronautics |
Langley |
RTCS |
Relative Time Command Sequence |
Goddard |
RTD |
Radiation and Technology Demonstration |
Goddard |
RTD |
Return to Duty |
Goddard |
RTD |
Research and Technology Div.,
Air Force Systems Command, Edwards, CA |
CASI |
RTD |
Resistance Temperature Device |
CASI |
RTD |
Resonant Tunneling Diodes |
CASI |
RTEAM |
Real Time Environmental and Agricultural
Monitoring |
CASI |
RTF |
Rich Text Format (a Microsoft
format) |
CASI |
RTG |
Radioisotope Thermionic Generator |
CASI |
RTLS |
Return to Launch Site (Abort separation conditions
for Space Shuttle Orbiter and External Tank) |
CASI |
RTM |
Reduced Thermal Model |
Goddard |
RTM |
Resin Transfer Molding |
Goddard |
RTMM |
Reduced Thermal Math Model |
Goddard |
RTO |
Research and Technology Organization |
CASI |
RTOD |
Realtime Orbit Determination |
CASI |
RTODS |
Real-Time Orbital Determination
System |
Goddard |
RTOL |
Reduced TakeOff and Landing |
CASI |
RTOP |
Research and Technology Operating
Plan |
Goddard |
RTOP |
Research and Technology Objectives
and Plans |
CASI |
RTP |
Relative Time Processor |
Goddard |
RTR |
Requirement Traceability Report |
Goddard |
RTR |
Research and Technology Resume |
Langley |
RTRACE |
Requirements Traceability Software |
Goddard |
RTS |
Real Time System |
Goddard |
RTS |
Relative Time Sequence |
Goddard |
RTS |
Remote Tracking Station [USAF] |
Goddard |
RTS |
Remote Tracking Station (Space
Shuttle) |
CASI |
RTSO |
Remote Terminal Security Officer |
Langley |
RTSS |
Real-Time Simulation Subsystem |
Langley |
RTSS |
Real-Time System Simulator |
Goddard |
RTU |
Remote Terminal Unit |
Goddard |
RTUTE |
Remote Terminal Unit Test Equipment |
Goddard |
RTV |
Room Temperature Vulcanizing |
CASI |
RU |
Remote Unit |
Goddard |
RVDT |
Rotary Variable Differential
Transformer |
Goddard |
RVGT |
Root Variable Geometry Truss |
Langley |
RVR |
Runway Visual Range |
CASI |
RVV |
Runway Visibility Value |
CASI |
RW |
Reaction Wheel |
Goddard |
RWA |
Reaction Wheel Assembly |
CASI |
RWE |
Reaction Wheel Electronics |
Goddard |
RXB |
Receiver Box |
Goddard |
RXTE |
Rossi Xray Timing Explorer |
CASI |
RZ |
Return to Zero |
Goddard |
| |
|
|
