Delivered-To: igsmail@igscb.jpl.nasa.gov
Date: Mon, 23 Jun 2003 12:36:43 +0200
From: Stefan Schaer <stefan.schaer@aiub.unibe.ch>
Subject: [IGSMAIL-4465]: GLONASS tracking alarm
To: igsmail <igsmail@igscb.jpl.nasa.gov>,
	iglosmail <iglosmail@igscb.jpl.nasa.gov>
Message-id: <3EF6D83B.64427620@aiub.unibe.ch>
Organization: Astronomical Institute, University of Berne
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IGS Electronic Mail      23 Jun 03:36:47 PDT 2003      Message Number 4465
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Author: Stefan Schaer 
 
 
Dear colleagues, 
 
The GLONASS tracking problems reached in the course of D171 a point  
which is more than alarming. We had to stop orbit determination with  
respect to an active GLONASS satellite just because of a lack of IGLOS  
tracking data! Only five IGLOS stations, 
 
  dwh1, 
  khaj, 
  os0g, 
  spt0, 
  zimj, 
 
are currently able to provide R08 tracking data. All other IGLOS  
stations, 
 
  bogi, 
  cagz, 
  conz, 
  darr, 
  davr, 
  drej, 
  ffmj, 
  godz, 
  gope, 
  helj, 
  hert, 
  hueg, 
  irkj, 
  joz2, 
  kr0g, 
  lhaz, 
  leij, 
  mat1, 
  metz, 
  mr6g, 
  mtbg, 
  mtka, 
  ohi3, 
  reyz, 
  thu2, 
  titz, 
  unb1, 
  wroc, 
  wtzj, 
  wtzz, 
  yarr, 
 
seem to simply ignore this transmitting GLONASS satellite: 
 
  http://www.aiub.unibe.ch/download/igsdata/r08_alarm.txt 
 

Best regards, 
 
Stefan