Subject: [SLR-Mail] No. 1837: [Fwd: Re: [IGSMAIL-6078]: Old SVN35 reactivated] From: Daniela Thaller ******************************************************************************** SLR Electronic Mail 2010-02-18 09:52:00 UTC Message No. 1837 ******************************************************************************** Author: Daniela Thaller Subject: [Fwd: Re: [IGSMAIL-6078]: Old SVN35 reactivated] Dear colleagues, as you can see from the email attached below, the old GPS-35 equipped with an SLR retro-reflector array has been re-activated recently (now as PRN25). At CODE we process the microwave data of the satellite so that we will provide predicted orbits that can be used by the ILRS sites for SLR tracking. Although we do not know how long GPS-35 will be active, we would be glad if the ILRS sites resume to track GPS-35 (as proposed by Carey). Best regards, Daniela -------- Original-Nachricht -------- Betreff: Re: [IGSMAIL-6078]: Old SVN35 reactivated Datum: Wed, 17 Feb 2010 11:17:22 -0500 Von: Carey Noll An: Schaer Stefan LT CC: Daniela Thaller , ilrs-cb Referenzen: <14611197A9EA9E409A62B52BBB1308410B433BB4BC@LTEXCH01.lt.admin.ch> Stefan, Will AIUB resume providing SLR prediction files for GPS-35? I.e., should the ILRS add the satellite back into our tracking roster if possible? Best regards, Carey. ----- On Feb 17, 2010, at 10:54 AM, Schaer Stefan LT wrote: > ****************************************************************************** > IGS Electronic Mail 17 Feb 07:55:23 PST 2010 Message > Number 6078 > ****************************************************************************** > > Author: Stefan Schaer > > SVN35, a Block IIA satellite launched on 30 Aug 1993 (as PRN05), has > been reactivated (as PRN25). Note that this GPS satellite is equipped > with SLR retro-reflectors. A reduced number of ”all-in-view” tracking > stations of the IGS tracking network has been receiving its signals > since day 042 (11 Feb 2010): > > http://www.aiub.unibe.ch/download/igsdata/y2010/odata_gps_d042.txt > http://www.aiub.unibe.ch/download/igsdata/y2010/odata_gps_d043.txt > > http://www.aiub.unibe.ch/download/igsdata/y2010/odata_mixed_d042.txt > http://www.aiub.unibe.ch/download/igsdata/y2010/odata_mixed_d043.txt > > See also IGS Mail 6077: > > http://igscb.jpl.nasa.gov/mail/igsmail/2010/msg00025.html > > This particular PRN is included in all analysis product lines at > CODE. The following receiver models seem to be able to provide useful > tracking data with respect to PRN25/SVN35 (currently without broadcast > orbit information): > > ASHTECH UZ-12 > ASHTECH Z-XII3 > JAVAD TRE_G3T DELTA > JPS E_GGD > JPS LEGACY > NOV OEMV3 > TPS E_GGD > TPS NETG3 > TRIMBLE NETR5 > > The CODE AC Team ----- Ms. Carey Noll Manager, Crustal Dynamics Data Information System (CDDIS) Secretary, ILRS Central Bureau NASA GSFC Code 690.1 Greenbelt, MD 20771 USA E-mail: Carey.Noll@nasa.gov Voice: (301) 614-6542 Fax: (301) 614-6015 WWW: http://cddis.gsfc.nasa.gov -- ------------------------------------------------- Daniela Thaller Astronomisches Institut, Universitaet Bern (AIUB) Sidlerstrasse 5 CH-3012 Bern Tel: ++41-31-631-3802 Fax: ++41-31-631-3869 E-mail: thaller@aiub.unibe.ch From: slrmail@dgfi3.dgfi.badw-muenchen.de From: Daniela Thaller ********************************************************************************