[IGSMAIL-6155]: new GRGS Analysis Center added to IGS Finals

[Jim.Ray]

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IGS Electronic Mail      20 May 05:42:54 PDT 2010      Message Number 6155
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Author: Jim Ray

Starting with week 1582, a new Analysis Center is now
contributing solutions for the IGS Finals.  The GRGS
(French Space Geodesy Research Group) AC is operated
jointly by CNES and CLS in Toulouse.  Their website at
http://igsac-cnes.cls.fr/ gives full details of the AC,
their processing strategy, and other information.

It should be mentioned that GRGS uses a unique method
to fix phase ambiguities for undifferenced observations.
Entry of GRGS into the IGS products follows a period of
extensive evaluation.

We are honored to welcome this group into our company!

Please also note that the GFZ/Potsdam (German Research
Centre for Geosciences) AC augmented their IGS Final
contributions to add GLONASS satellites starting week
1579.  We are thankful for this very valuable step by
GFZ to improve the robustness of the IGLOS orbits.