Subject: [Sirgas-Mail] No.1478: igs08_1884.atx: Update including Block IIF satellite G070 From: Laura Sanchez This is a copy of [IGSMAIL-7249] igs08_1884.atx: Update including Block IIF satellite G070 Dear IGS colleagues! The absolute IGS antenna correction file (igs08_wwww.atx) has been updated. The new release is called ´igs08_1884.atx´. It contains the following change: The twelfth and last Block IIF satellite launched on 5 February 2016 and already active since 10 February 2016 has been added: G32 (G070) The following PRELIMINARY phase center offset (PCO) values were assigned: PCO_X = 39.4 cm PCO_Y = 0.0 cm PCO_Z = 160.0 cm NANU message 2016011: > NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2016011 > SUBJ: SVN70 (PRN32) LAUNCH JDAY 036 > 1. NANU TYPE: LAUNCH > NANU NUMBER: 2016011 > NANU DTG: 051404Z FEB 2016 > SVN: 70 > PRN: 32 > LAUNCH JDAY: 036 > LAUNCH TIME ZULU: 1338 > > 2. GPS SATELLITE SVN70 (PRN32) WAS LAUNCHED ON JDAY 036. > A USABINIT NANU WILL BE SENT WHEN THE SATELLITE IS SET ACTIVE TO SERVICE. http://www.navcen.uscg.gov/?Do=gpsShowNanu&num=2016011 losangeles.af.mil: Final GPS IIF satellite joins constellation http://www.losangeles.af.mil/news/story.asp?id=123468882 The updated antenna correction model is available at ftp://ftp.igs.org/pub/station/general/igs08_1884.atx or ftp://ftp.igs.org/pub/station/general/igs08.atx A separate release without the MGEX extension is no longer provided. As regards the naming of GLONASS satellites, the following was recommended by the IGS Workshop in Sydney: ”In order to guarantee unique IGS space vehicle numbers for GLONASS, GLONASS numbers ”701...” (GLONASS-K) and ”750...” (GLONASS-M) are converted to ”R801...” and ”R850...”, respectively.” According to that recommendation, the following two satellites will be renamed with the next release of igs08.atx: R754/R18 (2014-012A) --> R854 R755/R21 (2014-032A) --> R855 If you expect a problem that deserves closer attention, please let me know! Sorry for the delay in adding G070 to igs08.atx! With best regards, Ralf Schmid on behalf of the IGS Antenna Working Group