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Enhancing Future IGS Reference Frame Realizations through Comprehensive Data Integration

The IGS recommends including both active and inactive high-quality stations from inception to enhance the stability of reference frame realizations over time. An updated discontinuity table should align with reprocessed solutions and be accessible at IGS Global Data Centers (GDCs). Additionally, the absolute antenna calibration file must be revised prior to each new reprocessing campaign, incorporating all available calibrations and offsets. IERS dome numbers shall be maintained in the SINEX files, with a unique 4-character identifier for clock solutions.

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Enhancing Future IGS Reference Frame Realizations through Comprehensive Data Integration

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  1. Recommendations – REPRO REPRO-1: Future IGS reference frame realizations should include active and inactive high quality stations, going back to the IGS beginning. This way the stability over time, having sufficient RF stations in early years, should be improved. REPRO-2: Discontinuity table shall be updated to be consistent with reprocessed solutions in coordination with the users. It shall be published at the IGS GDCs. REPRO-3: The IGS absolute antenna calibration file should be updated before the start of each new reprocessing campaign, including all available robot calibrations for receiver antennasand satellite-specific antenna offsets available in the SINEX files of the previous reprocessing campaign. REPRO-4: IERS domes numbers shall be used in the SINEX files. For the clock solutions a unique 4-character ID (RINEX file name) shall be used.

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