AAAC Astronomy and Astrophysics Advisory Committee

ACE Advanced Composition Explorer (spacecraft)

ADEPT Advanced Dark Energy Physics Telescope

AFRI

AIRS Atmospheric Infrared Sounder

AMS Alpha Magnetic Spectrometer

AO announcement of opportunity

BEPAC Beyond Einstein Program Assessment Committee

CDR climate data record

CEES Committee on Earth and Environmental Sciences (under OSTP)

CINDI Coupled Ion-Neutral Dynamics Investigation

CNES Centre National d’Etudes Spatiales (French National Space Agency)

C/NOFS Communication/Navigation Outage Forecasting System

DESTINY mission concept for the NASA-DOE Joint Dark Energy Mission (JDEM)

DMSP Defense Meteorological Satellite Program

DOC Department of Commerce

DOD Department of Defense

DOE Department of Energy

DSN Deep Space Network

EMI electromagnetic interference

EOS Earth Observing System

ERTS-1 Earth Resources Technology Satellite; renamed Landsat 1

ETM+ Enhanced Thematic Mapper Plus; an instrument on Landsat 7

EUMETSAT European Organisation for the Exploitation of Meteorological Satellites

Fermi Fermi Gamma-ray Space Telescope; formerly known as GLAST

FOC full operating capability

GAO Government Accountability Office

GLAST Gamma-ray Large Area Space Telescope; now Fermi Gamma-ray Space Telescope

GOES Geostationary Operational Environmental Satellite

GOESS Global Earth Observation System of Systems

GSFC Goddard Space Flight Center

HEPAP High Energy Physics Advisory Panel

ICR initial confirmation review

ICRR initial confirmation readiness review

IPO integrated program office

ISOC Instrument Science Operations Center

ISS International Space Station

ISWG Interim Science Working Group

Jason series of Earth observation satellites for oceanic measurements; also known as OSTM, the Ocean Surface Topography Mission

JDEM Joint Dark Energy Mission

JHU Johns Hopkins University

JOG Joint Oversight Group

JPL Jet Propulsion Laboratory

L1 Earth-Sun Lagrangian Point 1; a gravitationally stable point approximately 1.5 million km from Earth in the direction of the Sun

Landsat series of Earth-imaging satellites

LAT Large Area Telescope; main instrument of the Fermi Gamma-ray Space Telescope

LBNL Lawrence Berkeley National Laboratory

LDCM Landsat Data Continuity Mission

LISA Laser Interferometer Space Antenna

LV launch vehicle

Mir decommissioned Russian space station

MODIS Moderate-resolution Imaging Spectroradiometer

MOU memorandum of understanding

NASA National Aeronautics and Space Administration

Nimbus Series of satellites for meteorological research and development

NOAA National Oceanic and Atmospheric Administration

NPOESS National Polar-orbiting Operational Environmental Satellite System

NPP NPOESS Preparatory Project

NPR NASA Procedural Requirement

NRC National Research Council

NRL Naval Research Laboratory

NSF National Science Foundation

NSTC National Science and Technology Council

OFCM Office of the Federal Coordinator for Meteorology

OMB Office of Management and Budget

OSIP Operational Satellite Improvement Program

OSTM Ocean Surface Topography Mission

OSTP Office of Science and Technology Policy

PDD Presidential Decision Directive

PDD/NSTC-2 Convergence of NPOESS

PDD/NSTC-3 Landsat Remote Sensing Strategy

PDR preliminary design review

PI principal investigator

POES Polar Operational Environmental Satellite

QuikSCAT Quick Scatterometer; Earth-observing satellite measuring wind data over oceans

RADARSAT-1 Canadian Earth-observation satellite equipped with synthetic aperture radar

RF radio frequency

SACHS Southern Area Consortium of Human Services

SAGENAP Scientific Assessment Group for Experiments in Non-Accelerator Physics

SDT Science Definition Team

SeaWiFS Sea-viewing Wide Field-of-View Sensor; instrument on OrbView-2 (aka SeaStar)

SLAC Stanford Linear Accelerator Center; renamed SLAC National Accelerator Laboratory

SLC Stanford Linear Collider

SNAP Supernovae Acceleration Probe

SPIRES Stanford Physics Information Retrieval System

SRR systems requirements review

STP Space Test Program

TIROS Television Infrared Observation Satellite

TOPEX/Poseidon Joint NASA/CNES ocean surface topography mapping mission; succeeded by Jason-1 and Jason-2/OSTM

TRMM Tropical Rainfall Measuring Mission

USAF United States Air Force

USGCRP United States Global Change Research Program

USGS United States Geological Survey

UTD University of Texas at Dallas

WFIRST Wide-Field Infrared Survey Telescope

WMAP Wilkinson Microwave Anisotropy Probe