Subject: [Sirgas-Mail] No.1489: igs08_1886.atx: Update including GLONASS-M satellite R851 From: Laura Sanchez This is a copy of [IGSMAIL-7258] igs08_1886.atx: Update including GLONASS-M satellite R851 Dear IGS colleagues! The absolute IGS antenna correction file (igs08_wwww.atx) has been updated. The new release is called ´igs08_1886.atx´ (Please note that ´1886´ corresponds to the number of the upcoming GPS week!). It contains the following changes: 1) According to the Information Analytical Centre (IAC), GLONASS-M satellite R851 (2016-008A) launched on 7 February 2016 replaced GLONASS-M satellite R714 in almanac slot 17. Therefore, the following satellite has been added: R17 (R851) The following PRELIMINARY phase center offset (PCO) values were assigned: PCO_X = -54.5 cm PCO_Y = 0.0 cm PCO_Z = 245.0 cm According to the Center for Orbit Determination in Europe (CODE), R851 is already active since 24 February 2016 (DOY 55). source: > | 751 | 2514 | 3/17 | 04 | 07.02.2016 | 24.02.2016 | unusable | 24.02.2016 | https://www.glonass-iac.ru/en/CUSGLONASS/index.php 2) A decommission date for the following satellite has been added: R17 (R714): 23 February 2016 NAGU message 013-160225: > NOTICE ADVISORY TO GLONASS USERS (NAGU) 013-160225 > SUBJ: TRANSFER TO THE RESERVE 17/04 (714) 24.02/0430-24.02/1206 MT > 1.CONDITION: 17/04 (714) TRANSFERRED TO THE RESERVE > SINCE 24.02/0430 UNTIL 24.02/1206 MT (UTC+0300) https://www.glonass-iac.ru/en/CUSGLONASS/index.php The updated antenna correction model is available at ftp://ftp.igs.org/pub/station/general/igs08_1886.atx or ftp://ftp.igs.org/pub/station/general/igs08.atx Many thanks to Stefan Schaer for his help! With best regards, Ralf Schmid on behalf of the IGS Antenna Working Group