AC | alternating current |
AFRL | Air Force Research Laboratory |
ALM | autonomous logistics management |
ANT | adaptive network topology |
AR&D | autonomous rendezvous and docking |
ASRAT | Astrophysics Sounding Rocket Assessment Team |
ASRG | Advanced Stirling Radioisotope Generator |
ATA | Allen Telescope Array |
CCD | charge-coupled device |
CG | center of gravity |
CMOS | complementary metal oxide semiconductor |
CNT | carbon nanotube |
CPS | cyber-physical system |
CTE | coefficient of thermal expansion |
DC | direct current |
DDM | direct digital manufacturing |
DOD | Department of Defense |
DOE | Department of Energy |
DOF | degrees of freedom |
D&T | distribution and transmission |
E3 | environment, economy, and energy |
ECLSS | environmental control and life support system |
EDL | entry, descent, and landing |
EELV | Evolved Expendable Launch Vehicle |
EP | electric propulsion |
ETDP | Exploration Technology Development Program |
EVA | extravehicular activity |
FAST | Fast Access Testbed Spacecraft |
FDIR | fault detection, isolation, and recovery |
GCR | galactic cosmic radiation |
GEO | geosynchronous Earth orbit |
GN&C | guidance, navigation, and control |
GPU | graphical processor units |
GRM | generic reference mission |
H2 | hydrogen |
HDWL | hybrid Doppler wind lidar |
HEFT | Human Exploration Framework Team |
IBIS | Integrated Blanket/Interconnect System |
ICMSE | integrated computational materials science and engineering |
IHPRPT | Integrated High Payoff Rocket Propulsion Technology |
IMM | inverted metamorphic |
IMU | inertial measurement unit |
IR | infrared |
ISHM | integrated systems health management |
Isp | specific impulse |
ISRU | in situ resource utilization |
ISS | International Space Station |
ITAR | International Traffic in Arms Regulations |
JAXA | Japan Aerospace Exploration Agency |
JIMO | Jupiter Icy Moons Orbiter |
kW | kilowatt |
LEO | low Earth orbit |
LH2 | liquid hydrogen |
LILT | low-intensity/low-temperature |
LOX | liquid oxygen |
LTD | low-temperature detector |
M | mach number |
M&S | modeling and simulation |
MCP | microchannel plate |
MEMS | micro-electro-mechanical system |
MEO | mid-Earth orbit |
MLI | multi-layer insulation |
MMOD | micrometeoroid and orbital debris |
NACA | National Advisory Committee for Aeronautics |
NASA | National Aeronautics and Space Administration |
NDE | non-destructive evaluation |
NEA | near-Earth asteroid |
NEO | near-Earth object |
NERVA | Nuclear Engine for Rocket Vehicle Application |
NIAC | NASA Innovative Advanced Concepts (program); NASA Institute for Advanced Concepts |
NIST | National Institute of Standards and Technology |
NNI | National Nanotechnology Initiative |
NRC | National Research Council |
NSF | National Science Foundation |
NTR | nuclear thermal rocket |
OANM | onboard autonomous navigation and maneuvering |
OCT | Office of the Chief Technologist |
OSR | Orbital Sounding Rocket |
PLSS | personal life support system |
PNT | position, navigation, and timing |
PV | photovoltaic |
QE | quantum efficiency |
QFD | quality function deployment |
R&D | research and development |
RBCC | rocket-based combined cycle |
RDSP | robotic drilling and sampling processing |
RF | radio frequency |
RFID | radio frequency identification |
RLCAS | routine low cost access to space |
ROIC | readout integrated circuit |
RP | rocket propellant (hydrocarbon-based) |
RPS | radioisotope power system(s) |
RTG | radioisotope thermoelectric generator |
SDR | software defined radio |
SEE | single event effects |
SEP | solar electric propulsion |
SPE | solar particle event |
SWAP | size, weight, and power |
SWNT | single wall nanotube |
TA | technology area |
TA01 | Launch Propulsion Systems Technology Area |
TA02 | In-Space Propulsion Technologies Technology Area |
TA03 | Space Power and Energy Storage Technology Area |
TA04 | Robotics, TeleRobotics, and Autonomous Systems Technology Area |
TA05 | Communication and Navigation Technology Area |
TA06 | Human Health, Life Support, and Habitation Systems Technology Area |
TA07 | Human Exploration Destination Systems Technology Area |
TA08 | Science Instruments, Observatories, and Sensor Systems Technology Area |
TA09 | Entry, Descent, and Landing Systems Technology Area |
TA10 | Nanotechnology Technology Area |
TA11 | Modeling, Simulation, and Information Technology and Processing Technology Area |
TA12 | Materials, Structures, Mechanical Systems, and Manufacturing Technology Area |
TA13 | Ground and Launch Systems Processing Technology Area |
TA14 | Thermal Management Systems Technology Area |
TABS | technology area breakdown structure |
TBCC | turbine-based combined cycle |
TDRSS | Tracking and Data Relay Satellite System |
TPS | thermal protection system(s) |
TRL | technology readiness level |
USAF | U.S. Air Force |
UV | ultraviolet |
V&V | verification and validation |
VASIMR | Variable Specific Impulse Magnetoplasma Rocket |
VDFL | virtual digital flight leader |
VSM | vehicle systems management |
ZBO | zero boil-off |
This page intentionally left blank.