[IGSMAIL-6144]: Update: igs05_1581.atx - update including spared GLONASS-M satellite R714/R06

[Robert Khachikyan]

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IGS Electronic Mail      30 Apr 09:44:13 PDT 2010      Message Number 6144
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Author: Ralf Schmid and Robert Khachikyan

Dear IGS colleagues!

The absolute IGS antenna correction file (igs05_wwww.atx) has been
updated. The new release is called 'igs05_1581.atx'. It contains the
following changes:

1) Spared GLONASS-M satellite R714 (active in orbital slot 23 until 18
March 2010) was reactivated as R06. So, the following file entry was added:

R06 (R714): 28 April 2010

On Wednesday, April 28 (DOY 118), first IGS stations (IRKJ, LHAZ, REYK)
started tracking R714 as R06:
ftp://ftp.unibe.ch/aiub/igsdata/y2010/odata_glonass_d118.txt


On Thursday, April 29, also the IAC confirmed the reactivation of R714:
>  29.04.2010  Today the works on investigation of a potential for using
the spared GLONASS-M satellites in operation mode have been starting on
GLONASS #714 (launched on 25.12.2005). The expected date of finishing
works is 07.05.2010
http://www.glonass-iac.ru/pls/htmldb/f?p=202:1:2419780714980575

Unfortunately, no announcement was made before. Thanks to Stefan Schaer
and the CODE AC team for pointing to that reactivation!

2) A 'decommission' date for the following satellite was added:

R06 (R701): 27 April 2010


The updated antenna correction model is available at
ftp://igs.org/pub/station/general/igs05_1581.atx
or
ftp://igs.org/pub/station/general/igs05.atx

Information on the upcoming switch from igs05.atx to igs08.atx may be found at
http://www.iapg.bv.tum.de/mediadb/117723/117724/Vortrag_AGU09_schmid.pdf


With best regards,
Ralf Schmid and Robert Khachikyan
on behalf of the IGS Antenna Working Group