****************************************************************************** dorismail 14-Nov-2007 10:17:39 Message No 0521 ****************************************************************************** Author: "H. Fagard" Subject: Antenna change and raising at Rothera Dear Colleagues, The DORIS station at Rothera (British Antarctic Survey station), renovated in March 2005, has been down since the end of July because of a failure of the antenna and/or cables. These items have been replaced and the antenna was raised by 15 cm to allow the removal of the N-type bent adaptors located at its base. The transmissions from the old antenna (ROTB) stopped on July 17, 2007. They resumed on November 13 after the antenna replacement and moving in height. The acronym for the new reference point is ROUB. The DOMES number for the new antenna reference point is 66007S003. The vector from ROTB to ROUB is: dE = 0.000 m; dN = 0.000 m; dh = 0.150 m. Hence the ITRF2000, 1997.0 coordinates for ROUB: X = 909182.571 m Y = -2264787.431 m Z = -5873052.421 m (sigma: 1 cm) I remind you the ITRF2000 velocities for this site: VX = 0.0154 m/y VY = -0.0025 m/y VZ = 0.0020 m/y SigVX = 0.0009 m/y SigVY = 0.0012 m/y SigVZ = 0.0019 m/y Best regards, Herve Fagard -- ====================================================================== Herve FAGARD e-mail : herve.fagard@ign.fr Institut Geographique National 94165 SAINT-MANDE CEDEX PHONE : + 33 1 43 98 81 48 FRANCE FAX : + 33 1 43 98 84 50 ====================================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr