Subject: IDS site logs in ITRF 2005
From: "Tavernier Gilles" <[email-masked]>
To: <[email-masked]>
Cc: "Malechaux Nathalie" <[email-masked]>
Date: Fri, 12 Sep 2008 21:05:35 +0200

Dear colleagues,

Hervé Fagard is about to swith the IDS site logs from ITRF2000 to ITRF2005.
http://ids.cls.fr/html/doris/sitelog.php3
Before doing this, he insists that we remind you about the four character Ids used for the Kourou station.
http://ids.cls.fr/html/doris/stations/station.php3?code=KRUB

As stated in the DPOD2005 (http://www.ipgp.jussieu.fr/~willis/DPOD2005.htm), KRUB and KRVB have the same DOMES number, installation date (03.08.92), position and velocity. So KRUB = KRVB.

The explanation is simple: as Kourou is a master beacon, and as long as we only had two master beacons in the network (Toulouse and Kourou), we had a back-up beacon in Kourou, so that we could switch quickly in case of nominal beacon failure. Both beacons would use the same antenna. As a matter of fact, we never had to switch to the back-up and only the nominal KRVB beacon was used.
When replacing the 1.0 with a 3.0 beacon in November 2004, we decided to also remove the back-up beacon (a third master beacon was to be installed in Hartebeesthoek in 2005).

Best regards,

Gilles