This data set contains Inertial Measurement Unit (IMU) readings, including latitude, longitude, altitude, velocity, pitch, roll, and true heading, taken over Antarctica using the Systron Donner Inerti
Data were collected using GNSS survey methods, with a differential GPS operating in Real Time Kinematic (RTK) mode. Data from prior to 2013 were typically collected with a Magellan ProMark 3 tradition
The International Service for the Geoid (ISG) was founded in 1992 (as International Geoid Service - IGeS) and it is now an official service of the International Association of Geodesy (IAG), under the