ITALGEO05	Italian Geoid
EGM2008	Earth Gravitational Model 2008
GNSS/INS	Global Navigation Satellite System/Inertial Navigation System
DTM	Digital Terrain Model
GGM	Global Geopotential Model
RCR	Remove-Compute-Restore
RTC	Residual Terrain Correction
GRACE	Gravity Recovery and Climate Experiment
GPS	Global Positioning System
RMS	Root Mean Square
NGA	National Geospatial-Intelligence Agency
EIGEN-6C3	European Improved Gravity model of the Earth by New techniques
SRTM	Shuttle Radar Topography Mission
LSC	Least Squares Collocation
DOV	Deflection Of the Vertical
FOV	Field Of View