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dorismail               12-Jul-2019 10:18:25 Message No 1188
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Author: Jerome Saunier <Jerome.Saunier@ign.fr>
Subject: Network/ Antenna change at ST-JOHN-S


#### BEGIN HEADER ####
DORISMail version 1.1
Subject: No 1188 : Network/ new point ST-JOHN-S
#### END HEADER ####

Dear colleagues,

The DORIS antenna at ST-JOHN'S (Canada) has been replaced in order to overc=
ome recurrent power loss and disruption.

The new acronym ends with the letter 'D'. This means that the station is no=
w equipped with a new antenna type. Mind the position of the phase centers =
with respect to the antenna reference point have changed. Please refer to t=
he 'Documents for the data analysis" IDS website section for further inform=
ation.

Please find below the installation characteristics and the coordinates of t=
he reference point :

Concerned site:
#### BEGIN SITE ####
Site name         : ST-JOHN-S     ####
Site DOMES number : 40101     ####
#### END SITE ####

Characteristics of the new point:
#### BEGIN STATION ####
Four character ID           : STKD     ####
Antenna model               : Starec D type     ####
Station DOMES number        : 40101S004     ####
Date installed (dd/mm/yyyy) : 25/06/2019     ####
Antenna support type        : Stainless steel structure 40cm high     ####
Installed on                : Concrete pillar anchored in rock outcrop     =
####
#### END STATION ####

The coordinates of the DORIS antenna reference point are:
#### BEGIN COORDINATES ####
Solution : dpod2014 3.0 (ITRF2014)     ####
Note about the coordinates : tie to STKB     ####
Epoch    : 2000.0     ####
Unit     : metre     ####
X        : 2612608.035     ####
Y        : -3426816.264     ####
Z        : 4686764.563     ####
Sig X    : 0.001     ####
Sig Y    : 0.001     ####
Sig Z    : 0.001     ####
#### END COORDINATES ####

The ITRF velocities for the site are:
#### BEGIN VELOCITIES ####
Note about the velocities :      ####
Unit     : metre / year     ####
VX       : -0.01812     ####
VY       : -0.00153     ####
VZ       : 0.00811     ####
Sig VX   :      ####
Sig VY   :      ####
Sig VZ   :      ####
#### END VELOCITIES ####

Replacing previous DORIS antenna : STKB
Date removed (dd/mm/yyyy) : 19/06/2019

Best regards,

Jerome Saunier
_______________________________________________________________
Reseaux et Services en Geodesie Spatiale
Service de Geodesie et de Metrologie
IGN
73, AVENUE DE PARIS, 94165 SAINT-MANDE
ign.fr - geoportail.fr


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