Subject: [SIR-Mail] No.1023: igs08_1804.atx: Update including Block IIF satellite G068 and GLONASS-M satellite R755 From: Laura Sanchez Copy of [IGSMAIL-6953] Dear IGS colleagues! The absolute IGS antenna correction file (igs08_wwww.atx) has been updated. The new release is called ´igs08_1804.atx´. It contains the following changes: 1) The seventh Block IIF satellite launched on 2 August 2014 was added: G09 (G068) 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 2014062: > NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2014062 > SUBJ: SVN68 (PRN09) LAUNCH JDAY 214 > 1. NANU TYPE: LAUNCH > NANU NUMBER: 2014062 > NANU DTG: 020344Z AUG 2014 > SVN: 68 > PRN: 09 > LAUNCH JDAY: 214 > LAUNCH TIME ZULU: 0323 > > 2. GPS SATELLITE SVN68 (PRN09) WAS LAUNCHED ON JDAY 214. > A USABINIT NANU WILL BE SENT WHEN THE SATELLITE IS SET ACTIVE TO SERVICE. http://www.navcen.uscg.gov/?Do=gpsShowNanu&num=2014062 spaceflightnow.com: Atlas 5 rocket deploys new GPS navigation satellite http://spaceflightnow.com/atlas/av048/#.U99lbqZ8aCw 2) A GLONASS-M satellite launched on 14 June 2014 was added with a preliminary z-offset value of 245 cm: R21 (R755) NAGU message 060-140804: > NOTICE ADVISORY TO GLONASS USERS (NAGU) 060-140804 > SUBJ: 21/04 (755) PUT INTO OPERATION 03.08/1143 MT > 1.CONDITION: 21/04 (755) PUT INTO OPERATION 03.08/1143 MT (UTC+0300) http://glonass-iac.ru/en/CUSGLONASS/index.php 3) Decommission dates for the following two satellites were added: G09 (G039): 21 July 2014 R21 (R725): 3 August 2014 NAGU message 059-140804: > NOTICE ADVISORY TO GLONASS USERS (NAGU) 059-140804 > SUBJ: 21/04 (725) UNUSABLE 01.08/1445 MT - UNFINISHED > 1.CONDITION: 21/04 (725) UNUSABLE SINCE 01.08/1445 > MT (UTC+0300) UNTIL FURTHER NOTICE DUE TO MAINTENANCE http://glonass-iac.ru/en/CUSGLONASS/index.php 4) One robot calibration provided by Geo++ GmbH was added: AERAT1675_120 SPKE This antenna type is installed at the proposed EPN station YLDZ in Turkey. The updated antenna correction model is available at ftp://igs.org/pub/station/general/igs08_1804.atx or ftp://igs.org/pub/station/general/igs08.atx The exact date of the switch from R725 to R755 is not clear yet and could be changed later on. According to the Information-Analytical Centre, R755 should already be active: http://glonass-iac.ru/en/GLONASS/ Thanks to Richard Langley for his help! With best regards, Ralf Schmid on behalf of the IGS Antenna Working Group -- Laura Sánchez Deutsches Geodätisches Forschungsinstitut Alfons-Goppel-Str. 11, 80539 München phone: +49 89 23031-1295 fax: +49 89 23031-1240 mailto:sanchez@dgfi.badw.de http://www.dgfi.badw.de/