From Angelyn.W.Moore at jpl.nasa.gov Fri Jun 20 16:01:14 2003 From: Angelyn.W.Moore at jpl.nasa.gov (Angelyn W. Moore) Date: Fri, 20 Jun 2003 16:01:14 -0700 Subject: [IGSMAIL-4463]: Proposed change in antenna calibration policy Message-ID: <3EF3923A.1040601@jpl.nasa.gov> ****************************************************************************** IGS Electronic Mail 20 Jun 16:01:15 PDT 2003 Message Number 4463 ****************************************************************************** Author: Angelyn Moore Dear Colleagues, It has been proposed that, effective immediately, when an antenna+radome combination appears in the IGS network *for the first time*, 1. Calibrations with and without the radome will be placed into the ftp://igscb.jpl.nasa.gov/pub/station/general/igs_01.pcv file 2. The calibration including the radome will be put into the ftp://igscb.jpl.nasa.gov/pub/station/general/igs.snx file for this antenna+radome pair Procedure up until now has been to record the presence of, and changes in, radomes in igs.snx, but use only the calibration of the radome-free antenna in both igs_01.pcv and igs.snx. Any comment on this is appreciated at your earliest convenience at igscb at igscb.jpl.nasa.gov. Handling the change to calibrations which include radomes for equipment that already exists in the IGS will be considered separately, since there will be quite a bit of coordination required, in view of the time series already generated. Best regards, Angie ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Angelyn W. Moore, Ph.D. Deputy Director, IGS Central Bureau JPL/Caltech Angelyn.W.Moore at jpl.nasa.gov 4800 Oak Grove Dr. MS 238-540 voice: +1 818 354 5434 Pasadena CA 91109 USA http://igscb.jpl.nasa.gov fax: +1 818 393 6686