Two-step LRI1B data calibration approach

Saniya Behzadpour, Andreas Kvas, Torsten Mayer-Gürr

Research output: Contribution to conferenceAbstractpeer-review


GRACE-FO carries a Laser Ranging Interferometer (LRI) as a technology demonstration to provide measurements of inter-satellite range changes. This additional measurement technology provides supplementary observations, which improve the reliability of the range rate measurements and allow for a cross-instrument diagnostics and calibration with the K-band ranging (KBR) system.

We present a two-step approach used for LRI1B data calibration within the ITSG-Grace2018 scheme, which is compatible with the entire v04 release timespan. The aim of this study is to mitigate the remaining systematics due to the LRI datation time offset and LRI scale factor. We discuss the implementation of calibration parameters and the contribution of the calibration approach to the overall accuracy of gravity field solutions.
Original languageEnglish
Publication statusPublished - 17 Oct 2020
EventGRACE/GRACE-FO Science Team Meeting 2020 - Virtuell
Duration: 26 Oct 202029 Oct 2020


ConferenceGRACE/GRACE-FO Science Team Meeting 2020


  • Laser Ranging Interferometer
  • Calibration

Fields of Expertise

  • Sustainable Systems


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