Jan 8, 2026 · Geodetics, or geodesy, is the science of studying Earth’s shape, gravity and its effect on phenomena such as polar motion, waterbody tides, and tectonic motion in three-dimensional space …

Data provided by space geodesy techniques are used to support scientific and societal applications in areas such as Earth observations, positioning, navigation, and timing.

Daily GNSS Geodetic Displacement Time Series Product Access daily, combined, cleaned, filtered, GIPSY-GAMIT long-term time series of Continuous GNSS station positions (global and regional) in …

Dec 27, 2020 · In addition to VLBI telescopes, this terrestrial framework includes three other space-geodetic techniques and their instruments: Satellite Laser Ranging (SLR) telescopes, Global …

ESESES MEaSUREs Products Time series of geodetic station positions, velocity fields, strain and strain rate, and time series offsets are made possible by NASA's MEaSUREs program.

Jan 2, 2026 · Geodesy is the science of the Earth’s shape, gravity, and rotation, including their evolution in time. Learn more about geodetic data and how they enable scientists to track crustal motion. …

NASA’s Crustal Dynamics Data Information System (CDDIS) archives Very Long Baseline Interferometry (VLBI) National Geodetic Survey (NGS) data holdings.

Apr 19, 2021 · The TRF enables the precise positioning of geodetic stations that are used to calculate the position of a satellite in space. “Without a terrestrial reference frame, you’re not going to be able …

Jan 2, 2026 · Very Long Baseline Interferometry (VLBI) is a geometric technique that measures the time difference between the arrival at two Earth-based antennas of a radio wavefront emitted by a distant …

The Sensory Geophysical Data Record (SGDR) files from the Geodetic Mission contain full accuracy altimeter data, with a high precision orbit. The instruments on Jason-1 make direct observations of …