Full Name Laser Retroreflector Array Status Operational
Instrument Agencies NASA, ASI Maturity
Instrument Type Precision orbit Geometry
Instrument Technology Laser retroreflector Sampling TBD
Data Access Open Access Data Format NetCDF
Measurements and Applications Baseline tracking data for precision orbit determination and/or geodesy. Also for calibration of radar altimeter bias. Several types used on various missions. (ASI involved in LAGEOS 2 development).
Resolution Summary
Swath Summary
Accuracy Summary 2 cm overhead ranging
Waveband Summary
N/A (N/A)
Instrument Measurements
Measurements Overview
Gravity, Magnetic and Geodynamic measurementsGravity field
Ocean topography/currentsSea level
Ocean dynamic topography
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Sea Level click here click here search ECV Inventory records
Instrument Missions
Topex-Poseidon - Topographic Experiment/Poseidon (1992 - 2006)
GFO - GEOSat Follow-on (1998 - 2008)
Jason-1 - Jason-1 (2001 - 2013)
OSTM (Jason-2) - Ocean Surface Topography Mission (2008 - 2019)
Jason-3 - Jason-3 (2016 - 2025)
SWOT - Surface Water Ocean Topography (2022 - 2025)