Acronyms and Abbreviations

A/D	Analog to Digital Converter
ADC	Analog to Digital Converter
ADR	Ancillary Data Record
APL	The Johns Hopkins University Applied Physics Laboratory
APS	Alpha Particle Spectrometer (on Lunar Prospector)
ASCII	American Standard Code for Information Interchange
BDR	Basic Data Recorder
CAT	CRISM Analysis Tool
CDR	Calibration Data Record
CRaTER	Cosmic Ray Telescope of the Effects of Radiation (on LRO)
CRISM	Compact Reconnaissance Imaging Spectrometer for Mars (on Mars Reconnaissance Orbiter)
CSV	Comma-Separated Value (a format for organizing tabular data in ASCII format)
CTX	Context Camera (on Mars Reconnaissance Orbiter)
DAC	Digital to Analog Converter
DDR	Derived Data Record
DIVINER	LRO Lunar Radiometer Experiment
DPCM	Differential Pulse-Code Modulation (compression)
DPU	CRISM Data Processing Unit
EDR	Experiment Data Record
EPF	Emission Phase Function
ER	Electron Reflectometer (on Lunar Prospector)
FOV	Field-of-View
FPU	Focal Plane Unit
Gb	Gigabit (10^9 bits)
GME	CRISM Gimbal Motor Electronics
GRS	Gamma-Ray Spectrometer
GSFC	Goddard Space Flight Center
HiRes	High Resolution Camera (on Clementine)
HIRISE	High-Resolution Imaging Science Experiment (on Mars Reconnaissance Orbiter)
HOP	High-output Paraffin actuator; on CRISM a HOP deploys the cover
HRSC	High Resolution Stereo Camera
I/F	Intensity divided by flux, or the ratio of radiance to incident solar radiation
IR	Infrared
ISRO	Indian Space Research Organization
JHU/APL	The Johns Hopkins University Applied Physics Laboratory
JPL	Jet Propulsion Laboratory
LAMP	Lyman-Alpha Mapping Project (on LRO)
LED	Light-emitting diode
LEND	Lunar Exploration Neutron Detector (on LRO)
LIDAR	Laser Image Detection and Ranging (on Clementine)
LOLA	Lunar Orbiter Laser Altimeter (on LRO)
LRO	Lunar Reconnaissance Orbiter
LROC	Lunar Reconnaissance Orbiter Camera (on LRO)
LOS	Line of Sight
Ls	Solar longitude; a measure of Mars’ motion in its orbit, in degrees, since northern hemisphere vernal equinox
LUT	Look-up Table
LVDS	Low-Voltage Differential Signal
LWIR	Long Wavelength Infrared Camera (on Clementine)
M3	Moon Mineralogy Mapper (on Chandrayaan-1)
MAG	Magnetometer
MARCI	Mars Color Imager – Wide Angle Camera (on Mars Reconnaissance Orbiter)
MARSIS	Mars Advanced Radar for Subsurface and Ionosphere Sounding (on Mars Express)
MASCS	Mercury Atmospheric and Surface Composition Spectrometer
MCS	Mars Climate Sounder
MDIS	Mercury Dual Imaging System
MDR	Merged Data Record
MESSENGER	Mercury Surface, Space Environment, Geochemistry, and Ranging
MEX	Mars Express
MGS	Mars Global Surveyor
MLA	Mercury Laser Altimeter
MOC	Mars Orbiter Camera (on Mars Global Surveyor)
MOLA	Mars Orbiter Laser Altimeter (on Mars Global Surveyor)
MRDR	CRISM Map-projected Reduced Data Record
MRO	Mars Reconnaissance Orbiter
MTRDR	CRISM Map-projected Targeted Reduced Data Record
MUX	Multiplexed or multiplexer
NIR	Near-Infrared Camera (on Clementine)
NS	Neutron Spectrometer
ODE	Orbital Data Explorer
OMEGA	Observatoire pour la Minéralogie, l’Eau, les Glaces et l’Activité (on Mars Express)
OSU	CRISM Optical Sensor Unit
PDS	Planetary Data System
PFS	Planetary Fourier Spectrometer
RDR	Reduced Data Record
RS	Radio Science
SHARAD	Shallow Radar
SIS	Software Interface Specification
SNR	Signal-to-noise ratio
SOC	Science Operations Center
SPICE	SPacecraft, Instrument, Camera, and Events; a set of data formats for spacecraft ephemieris, attitude, and instrument pointing
STC	Star Tracker Camera (on Clementine)
Tb	Terabit (10^12 bits)
TBD	To Be Determined
TES	Thermal Emission Spectrometer (on Mars Global Surveyor)
THEMIS	Thermal Emission Imaging System (on Mars Odyssey)
TRDR	CRISM Targeted Reduced Data
UVVS	Ultraviolet and Visible Spectrometer
UVVIS	Ultraviolet/Visible Camera (on Clementine)
VIRS	Visible and Infrared Spectrograph
VNIR	Visible / near-infrared
XRS	X-Ray Spectrometer