****************************************************************************** dorismail 10-Dec-2010 16:21:47 Message No 0718 ****************************************************************************** Author: "Jerome SAUNIER" Subject: Network/ new point COLD BAY #### BEGIN HEADER #### DORISMail version 1.1 Subject: No 0718 : Network/ new point COLD BAY #### END HEADER #### Dear colleagues, A new DORIS station has been installed in the premises of the U.S. Coast Guard Navigation Center (NAVCEN) at Cold Bay, in the westernmost portion of the Alaska Peninsula. This new station replaces the Fairbanks(FAIB) DORIS station, which has been down since July 2010 and removed on October, 7th. Cold Bay is a site offering a clear sky view and a better location getting improvement of the network strength (coverage gap reduced on Northern Pacific). Two permanent GNSS receivers are operating in the same premises and part of the CORS network (NGS): BAY5 and BAY6. Transmissions started on November 22, 2010, in the central frequencies mode. Its coordinates (ITRF2005, 2010.80) are derived from a connection to the surrounding IGS stations processed with the Bernese software. Since no GPS-derived velocities are available yet for this site, values were calculated from ITRF2005 velocities field. Please find below the installation characteristics and the coordinates of the new reference point : Concerned site: #### BEGIN SITE #### Site name : COLD BAY #### Site DOMES number : 49804 #### #### END SITE #### Characteristics of the new point: #### BEGIN STATION #### Four character ID : COBB #### Antenna model : Starec 52291 type #### Station DOMES number : 49804S004 #### Date installed (dd/mm/yyyy) : 12/11/2010 #### Antenna support type : 30 cm sided very rigid metal tower, 2m high #### Installed on : Concrete block #### #### END STATION #### The coordinates of the DORIS antenna reference point are: #### BEGIN COORDINATES #### Solution : ITRF2005 #### Note about the coordinates : #### Epoch : 2010.8 #### Unit : metre #### X : -3484298.224 #### Y : -1084773.360 #### Z : 5213542.190 #### Sig X : 0.001 #### Sig Y : 0.005 #### Sig Z : 0.012 #### #### END COORDINATES #### The ITRF velocities for the site are: #### BEGIN VELOCITIES #### Note about the velocities : #### Unit : meter / year #### VX : -0.0177 #### VY : 0.0001 #### VZ : -0.0118 #### Sig VX : 0.0005 #### Sig VY : 0.0004 #### Sig VZ : 0.0003 #### #### END VELOCITIES #### Best regards, Jérôme SAUNIER Réseaux et Services Internationaux Service de Géodésie et Nivellement Institut Géographique National 2, avenue Pasteur 94 165 SAINT MANDE Cedex Cliquez sur l'url suivante https://www.mailcontrol.com/sr/0kvIrB6KsBLTndxI!oX7UtGOfOOwfgq3aYq!5iCqPbU5VksHawcO8LjsTQekBEpniLkWkKkYj8JhjvXYAQ53ow== si ce message est indésirable (pourriel). Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr