From arturo.villiger at aiub.unibe.ch Tue Mar 13 06:10:11 2018 From: arturo.villiger at aiub.unibe.ch (Arturo Villiger) Date: Tue, 13 Mar 2018 14:10:11 +0100 Subject: [IGSMAIL-7609] igs14_1992.atx: Update including reactivated BLOCK IIA satellite SVN34/PRN18 Message-ID: Dear IGS colleagues, The absolute IGS antenna correction file (igs14_wwww.atx) has been updated. The new release is called 'igs14_1992.atx'. It contains the following changes: 1) According to NANU 2018010, Block IIA satellite SVN34 has resumed transmitting L-band utilizing PRN18 on approximately 8 March 2018. According to CODE, satellite SVN34 has been observed occasionally by the IGS network between the the decommission of satellite SVN54 and the official announcement. Therefore, the following satellite has been added to the igs14.atx starting from 24. January 2018: G18 (G034) NANU message 2018010: NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2018010 NANU TYPE: GENERAL *** GENERAL MESSAGE TO ALL GPS USERS *** ON 07 MAR 2018, AFTER 2200Z, GPS WILL TRANSITION SVN34 (PRN18) INTO THE BROADCAST ALMANAC FOR ALL SATELLITES. THE ALMANAC TRANSITION, ONE SATELLITE AT A TIME, WILL REQUIRE APPROXIMATELY 24 HOURS TO COMPLETE. ALSO, ON APPROXIMATELY 08 MAR 2018, SVN34 WILL RESUME TRANSMITTING L-BAND UTILIZING PRN18. SVN34/PRN18 WILL BE UNUSABLE UNTIL FURTHER NOTICE. FUTURE NANUS WILL NOTIFY USERS OF ANY CHANGES TO THE ABOVE STATED STATUS. *** GENERAL MESSAGE TO ALL GPS USERS *** https://www.navcen.uscg.gov/?Do=gpsShowNanu&num=2018010 2) The following decommission date has been added: ? G18 (G054):? 23 January 2018 The updated antenna correction model is available at ftp://ftp.igs.org/pub/station/general/igs14_1992.atx or ftp://ftp.igs.org/pub/station/general/igs14.atx With best regards, Arturo Villiger on behalf of the IGS Antenna Working Group -- ------------------------------------------------------------------------ Arturo Villiger Astronomical Institute University of Bern Sidlerstrasse 5 CH - 3012 Bern / Switzerland phone ++41 31 631 85 06 fax?? ++41 31 631 38 69 arturo.villiger at aiub.unibe.ch ------------------------------------------------------------------------ -------------- next part -------------- An HTML attachment was scrubbed... URL: