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Ralf Schmid 04-Jan-2017 15:33
IGSMAIL
Sujet : [IGSMAIL-7406] igs08_1930.atx: Update including reactivated Block IIR-M satellite SVN49/PRN04 (37522)
De . Ralf Schmid - schmid@tum.de
Date : 04-Jan-2017 15:33 - fr-FR
À : igsmail@igscb.jpl.nasa.gov, igs-equipment-files@igscb.jpl.nasa.gov











Dear IGS colleagues!





A happy and healthy new year to all of you!





The absolute IGS antenna correction file (igs08_wwww.atx) has been


updated. The new release is called 'igs08_1930.atx'. It contains the


following changes:





1) According to NANU 2017001, Block IIR-M satellite SVN49 will resume


transmitting L-band utilizing PRN04 on approximately 5 January 2017.


Therefore, the following satellite has been added to igs08.atx:





G04 (G049)





NANU message 2017001:


> NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2017001 NANU TYPE: GENERAL


> *** GENERAL MESSAGE TO ALL GPS USERS ***


> ON APPROXIMATELY 05 JAN 2017, SVN49 WILL RESUME TRANSMITTING L-BAND UTILIZING PRN04. AT L-BAND ACTIVATION, SVN49/PRN04 WILL BE UNUSABLE UNTIL FURTHER NOTICE. ADDITIONALLY, NO BROADCAST ALMANACS WILL INCLUDE SVN49/PRN04 UNTIL FURTHER NOTICE.


http://www.navcen.uscg.gov/?Do=gpsShowNanu&num=2017001





2) According to CODE, G034 stopped signal transmission on 3 January


2017. Therefore, a decommission date for the following satellite has


been added:





G04 (G034): 3 January 2017








The updated antenna correction model is available at


ftp://ftp.igs.org/pub/station/general/igs08_1930.atx


or


ftp://ftp.igs.org/pub/station/general/igs08.atx





Many thanks to Andreja Susnik and Rolf Dach for their help!





With best regards,


Ralf Schmid


on behalf of the IGS Antenna Working Group


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