Delivered-To: igsmail@igscb.jpl.nasa.gov From: Jim Ray "(NGS" 301-713-2850 "x112)" Message-Id: <200306091258.IAA13968@ngs.noaa.gov> Subject: [IGSMAIL-4430]: recent satellite clock events To: igsmail@igscb.jpl.nasa.gov, CANSPACE@listserv.unb.ca Date: Mon, 9 Jun 2003 08:58:38 -0400 (EDT) Sender: owner-igsmail Precedence: bulk ****************************************************************************** IGS Electronic Mail 09 Jun 05:59:23 PDT 2003 Message Number 4430 ****************************************************************************** Author: Jim Ray Based on the IGS Rapid clock products (see website at ), users may have noticed the following events: PRN05/SVN35 -- A large reset took place late on 02 June at which time a NANU was issued setting it unusable until further notice. The IGS has had no trouble generating orbit and clock products since that time although many receivers are unfortunately not reporting data (see Stefan Schaer's IGS Mail #4371 on 08 May). PRN22/SVN22 -- It seems to have been turned off permanently as of 28 May even though no NANU has been issued. It was set unusable last 03 December but the IGS was tracking it without problems. PRN31/SVN31 -- The clock apparently developed severe problems on 06 June which continued through at least the following day. I have not seen any NANUs on this yet, but the broadcast clock performance was clearly affected.