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dorismail               30-Jan-2015 11:16:47 Message No 0961
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Author: Jerome Saunier <jerome.saunier@ign.fr>
Subject: Network/ Antenna change at ROTHERA


#### BEGIN HEADER ####
DORISMail version 1.1
Subject: No 0961 : Network/ new point ROTHERA
#### END HEADER ####

Dear colleagues,

The DORIS antenna at ROTHERA has recently been replaced in order to 
overcome disruption and power loss on the 400MHz channel. Given that the 
equipment replacement was performed by the host agency, high precision 
control survey could not be carried out. It is assumed that the position 
of the antenna remain unchanged after replacement.
Please find below the installation characteristics and the coordinates 
of the new reference point :

Concerned site:
#### BEGIN SITE ####
Site name         : ROTHERA     ####
Site DOMES number : 66007     ####
#### END SITE ####

Characteristics of the new point:
#### BEGIN STATION ####
Four character ID           : ROWC     ####
Antenna model               : Starec type C     ####
Station DOMES number        : 66007S005     ####
Date installed (dd/mm/yyyy) : 10/01/2015     ####
Antenna support type        : Stainless steel structure 40cm high     ####
Installed on                : Concrete pillar 1.5m high     ####
#### END STATION ####

The coordinates of the DORIS antenna reference point are:
#### BEGIN COORDINATES ####
Solution : ITRF2008 (tie to ROUB)     ####
Note about the coordinates :      ####
Epoch    : 2005.0     ####
Unit     : metre     ####
X        : 909182.728     ####
Y        : -2264787.518     ####
Z        : -5873052.546     ####
Sig X    : 0.004     ####
Sig Y    : 0.002     ####
Sig Z    : 0.002     ####
#### END COORDINATES ####

The ITRF velocities for the site are:
#### BEGIN VELOCITIES ####
Note about the velocities :      ####
Unit     : metre / year     ####
VX       : 0.0185     ####
VY       : -0.0033     ####
VZ       : 0.0021     ####
Sig VX   : .0003     ####
Sig VY   : .0003     ####
Sig VZ   : .0003     ####
#### END VELOCITIES ####

Replacing previous DORIS antenna : ROVB
Date removed (dd/mm/yyyy) : 10/01/2015


Best regards,

Jerome Saunier

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