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Acronyms
CAST
China Academy of Space Technology
CCD
Charge-Coupled Device
CDMA
Code Division Multiple Access
CEO
Celestial Ephemeris Origin
CEP
Celestial Ephemeris Pole
CGRO
Compton Gamma-Ray Observatory (or GRO)
CIO
Conventional International Origin/Celestial Intermediate Origin
CIP
Celestial Intermediate Pole
CM
Command Module
CMB
Cosmic Microwave Background
CNES
Centre National d’Etudes Spatiales (French)
CNS
Celestial Navigation System
CPU
Central Processing Unit
CS
Commercial Service
CTP
Conventional Terrestrial Pole
CTS
Conventional Terrestrial System
CV
Cataclysmic Variable star
CXO
Chandra X-ray Observatory
DARPA
Defense Advanced Research Project Agency (US)
DASS
Distress Alerting Satellite System
DME
Distance Measuring Equipment
DNA
Deoxyribonucleic Acid
DNSS
Defense Navigation Satellite System
DoD
Department of Defense (US)
DOF
Degrees of Freedom
DOP
Dilution of Precision
DORIS
Doppler Orbitography and Radiopositioning Integrated by Satellite
DSN
NASA Deep Space Network
ECEF
Earth-Centered Earth-Fixed
ECI
Earth-Centered Inertial
EPTA
European Pulsar Timing Array
ESA
European Space Agency
ET
Ephemeris Time
EU
European Union
EXOSAT
European X-ray Observatory Satellite
FAA
Federal Aviation Administration (US)
FAST
Five-hundred-meter Aperture Spherical Telescope
FCC
Federal Communication Commission (US)
FDMA
Frequency Division Multiple Access
FFT
Fast Fourier Transform
FGST
Fermi Gamma-Ray Space Telescope
FOC
Full Operational Capability
FOV
Field of View
FWHW
Full Width at Half Maximum
GALCIT
Guggenheim Aeronautical Laboratory, Caltech