Message-ID: <4BA3AFF5.3060600@jpl.nasa.gov> Date: Fri, 19 Mar 2010 10:10:13 -0700 From: Robert Khachikyan User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.8) Gecko/20100227 Lightning/1.0b1 Thunderbird/3.0.3 To: igsmail@igscb.jpl.nasa.gov, igs-equipment-files@igscb.jpl.nasa.gov Subject: [IGSMAIL-6111]: Update: igs05_1575.atx Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-igsmail Precedence: bulk ****************************************************************************** IGS Electronic Mail 19 Mar 10:10:04 PDT 2010 Message Number 6111 ****************************************************************************** Author: Ralf Schmid and Robert Khachikyan Dear IGS colleagues! The absolute IGS antenna correction file (igs05_wwww.atx) has been updated. The new release is called 'igs05_1575.atx'. It contains the following changes: 1) The latest GLONASS-M satellites launched on 1 March 2010 have been added with preliminary z-offset values of 230.0 cm: R22 (R731) R23 (R732) R24 (R735) R732 was added with a later 'launch date' (19 March 2010), as R714 was still active in the same slot. Unfortunately, the date of the switch-over was not announced. The corresponding COSPAR IDs contained in the file are not confirmed so far and could be changed later on! 2) 'Decommission' dates for the following satellites have been added: R22 (R726): 28 February 2010 R23 (R714): 18 March 2010 R24 (R713): 28 February 2010 3) Three additional receiver antenna calibrations provided by Leica Geosystems AG have been added: LEIAS10 NONE LEIGS09 NONE LEIMNA950GG NONE The phase center corrections for the first two antenna types were just copied from other types that should be identical in construction. However, a confirmation by one of the calibration institutions is missing so far. The updated antenna correction model is available at ftp://igs.org/pub/station/general/igs05_1575.atx or ftp://igs.org/pub/station/general/igs05.atx Information on the upcoming switch from igs05.atx to igs08.atx may be found at http://www.iapg.bv.tum.de/mediadb/117723/117724/Vortrag_AGU09_schmid.pdf General information on "How to use IGS antenna phase center corrections?" may be found at http://techtalk.sidt.gpsworld.com/?p=466 With best regards, Ralf Schmid and Robert Khachikyan on behalf of the IGS Antenna Working Group