Announcing JTRF2020
Dear TRF User: We are pleased to announce that JTRF2020, the NASA JPL contribution to ITRF2020, is ready to be released and distributed to the community. JTRF2020 has been computed with SREF (Square-root Reference frame Estimation Filter), JPL’s newly developed software for sequentially determining terrestrial reference frames based upon a square-root information filter and smoother algorithm. JTRF2020 assimilates frame inputs …