[IGSMAIL-8584] igs20_2360: Update including new QZSS-3G satellite J006 and GLONASS-K2 satellite R804

[arturo.villiger at swisstopo.ch]

Dear colleagues

The absolute IGS antenna correction file (igs20_wwww.atx) has been updated.
The new release is called 'igs20_236.atx'. It contains the following changes:

1) According to the IGS satellite metadata file<https://files.igs.org/pub/station/general/igs_satellite_metadata.snx?_gl=1*a69uf*_ga*NTU2NDgyMzczLjE3MzI0NzU1MTA.*_ga_Z5RH7R682C*MTc0MTA5ODU4MC4xNS4xLjE3NDEwOTk0OTMuNjAuMC4w> two new satellites QZSS J007  (J08) and GLONASS R807 (R27) have been added. For the GLONASS K2 satellite R807 the same preliminary PCO values as for R803 have been used.

- QZSS-3G J08 (J007): Starting from 02. February 2025
- GLONASS-K2 R27 (R804): Starting from 02. March 2025

2) According to the IGS satellite metadata file<https://files.igs.org/pub/station/general/igs_satellite_metadata.snx?_gl=1*a69uf*_ga*NTU2NDgyMzczLjE3MzI0NzU1MTA.*_ga_Z5RH7R682C*MTc0MTA5ODU4MC4xNS4xLjE3NDEwOTk0OTMuNjAuMC4w> one satellite, R716 (R27), has been decommissioned:
- GLONASS-M R27 (R716): Decommission day: 01. January 2020

3) Ten new antenna calibrations which have been performed by Geo++ GmbH:


  - Two antenna calibrations provided by Shanghai Huace Navigation Technology Ltd..:
       CHCI76          NONE
       CHCI83PRO       NONE

  - One antenna calibrations provided  by Shanghai EFIX Geomatics Co., Ltd.:
       EFIF8           NONE


  *   Four antenna calibrations provided by JAVAD GNSS, INC.:
      JAVGRANT_3LS    NONE
       JAVGRANT_3LS+GP JVSD
       JAVGRANT_G3T+GP JVSD
       JAVGRANT_G3T+   NONE

-  Three antenna calibration provided by Toknav Information Technology Co., Ltd.:
        TNVT20PRO       NONE
        TNVT20          NONE
        TNVT5LITE       NONE

The updated antenna correction model is available a

https://files.igs.org/pub/station/general/igs20_2360.atx.gz

and

https://files.igs.org/pub/station/general/igs20.atx.gz <https://files.igs.org/pub/station/general/igs20.atx.gz%20%0d>

Best regards,
Arturo






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