[IGSMAIL-8624] Start of GLONASS R808/R20 signal transmisssion

[Peter.Steigenberger at dlr.de]

Dear colleagues,



the latest GLONASS-K1B satellite launched on 13-Sep-2025 started signal transmission yesterday (16-Oct-2025) around 1:22 with PRN R20 and FCN 2. It replaces the old GLONASS-M satellite R719 launched in 2007 which stopped signal transmission as R20 around 0:24 and started with PRN R28 and FCN 7 around 2:00. This information has been added to the IGS satellite metadata file available at https://files.igs.org/pub/station/general/igs_satellite_metadata.snx



Please note that R719/R28 is currently unhealthy whereas R808/R20 is healthy since 16-Oct-2025  ~11:50.



Best regards,



Peter







----------------------------------------------------

Peter Steigenberger

Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)

German Space Operations Center Oberpfaffenhofen

D-82234 Wessling

Germany



Tel.    +49 (8153) 28-3765

Fax     +49 (8153) 28-1450

e-mail  peter.steigenberger at dlr.de<mailto:peter.steigenberger at dlr.de>

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