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Tilt-to-Length Coupling in the GRACE Follow-On Laser Ranging Interferometer
Journal of Spacecraft and Rockets
The Laser Ranging Interferometer onboard the Gravity Recovery and Climate Experiment Follow-On satellites is the first laser interferometer in space measuring satellite-to-satellite distance variations. One of its main noise sources at low frequencies is the so-called tilt-to-length coupling, caused by satellite pointing variations. This error is estimated by fitting a linear coupling model, making use of the so-called center-of-mass calibration maneuvers. These maneuvers are performeddoi:10.2514/1.a34790 fatcat:cvttj7fj35hgjb6p4tzpt7y4wq