At 15:17 UTC on Nov. 28, a Soyuz-2.1b launched from Site 43/3 at the Plesetsk Cosmodrome, carrying the final GLONASS-M satellite to orbit, designated Kosmos-2564. This is the first of two planned launches from the Plesetsk Cosmodrome in just three days, with a classified payload scheduled to launch onboard a Soyuz-2.1a on Wednesday, Nov. 30. GLONASS satellites provide 100-meter accuracy with their C/A (deliberately degraded) signals and 10-20 meter accuracy with their P (military) signals. The Uragan-M spacecraft are three-axis stabilized, nadir pointing with dual solar arrays. The payload consists of L-Band navigation signals in 25 channels separated by 0.5625 MHz intervals in two frequency bands: 1602.5625 – 1615.5 MHz and 1240 – 1260 MHz.
