[IGSMAIL-7697] igs14_2029.atx: Update including new GLONASS-M satellite R857

[Arturo Villiger]

Dear IGS colleagues,

The absolute IGS antenna correction file (igs14_wwww.atx) has been
updated. The new release is called 'igs14_2029.atx'. It contains
the following changes:


1) According to the Information Analytical Centre (IAC), GLONASS-M 
satellite
R857 (2018-080A) launched on 3 November 2018 was put into operation in 
slot 15.
According to the Center for Orbit Determination in Europe (CODE), R857 
became
active on the 24 November 2018 (DOY 328). Note that the SVN number was 
assigned
according to an IGS Workshop recommendation (see IGSMAIL #7252) to 857
(changed from 757 to 857).

The following PRELIMINARY phase center offset (PCO) values were assigned:

PCO_X = -54.5 cm
PCO_Y = 0.0 cm
PCO_Z = 245.0 cm

2) The following decommission date has been added:

   R15 (716):  23 November 2018

3) Five additional antenna type calibrations have been added that were 
performed by Geo++ GmbH:
      - Three robot calibrations provided by Javad GNSS Inc. have been 
added:
        JAV_RINGANT_G3T JAVD
        JAVRINGANT_G5T  JAVD
        JAVTRIUMPH_2A+P JVSD

      - One robot calibration provided by Topcon Positioning Systems 
Inc. has been added:
        TPSHIPER_VR     NONE

      - One robot calibration provided by Trimble Navigation Limited has 
been added:
        TRMR10-2        NONE

The updated antenna correction model is available at
ftp://ftp.igs.org/pub/station/general/igs14_2029.atx
or
ftp://ftp.igs.org/pub/station/general/igs14.atx

With best regards,
Arturo Villiger
on behalf of the IGS Antenna Working Group

-- 
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Arturo Villiger
Astronomical Institute
University of Bern
Sidlerstrasse 5
CH - 3012 Bern / Switzerland

phone ++41 31 631 85 06
fax   ++41 31 631 38 69
arturo.villiger at aiub.unibe.ch
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