Cosmos 2475, 2476 & 2477

Launch Success

Liftoff Time (GMT)

12:51:41

Friday November 4, 2011

Mission Details

Cosmos 2475, 2476 & 2477

Wiki

Uragan-M spacecraft are the second generation of GLONASS satellites with an increased lifetime of 7 years following up the first generation Uragan spacecraft. GLONASS (Globalnaya Navigationnaya Sputnikovaya Sistema, Global Orbiting Navigation Satellite System) is a Russian space-based navigation system comparable to the American GPS system, which consists of Uragan spacecraft. The operational system contains 21 satellites in 3 orbital planes, with 3 on-orbit spares. GLONASS provides 100 meters accuracy with its C/A (deliberately degraded) signals and 10-20 meter accuracy with its P (military) signals. The Uragan-M spacecraft are 3-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 2 frequency bands: 1602.5625 - 1615.5 MHz and 1240 - 1260 MHz. EIRP 25 to 27 dBW. Right hand circular polarized. On-board cesium clocks provide time accuracy to 1000 nanoseconds. A civil reference signal on L2 frequency was added after the completion of flight testing of Glonass-M in 2004 to substantially increase the accuracy of navigation relaying on civil signals.

Medium Earth Orbit

3 Payloads

4,500 kilograms

Rocket

Active
Proton-M/Briz-M

Active Since 2001

Khrunichev State Research and Production Space Center logo

Manufacturer

Khrunichev

Price

$65.00 million

Rocket

Height: 58.18m

Payload to Orbit

LEO: 21,000 kg

GTO: 6,900 kg

Liftoff Thrust

10,027 Kilonewtons

Fairing

Diameter: 4.35m

Height: 15.26m

Stages

4

Launch Site

Site 81/24

Baikonur Cosmodrome, Kazakhstan

Fastest Turnaround

6 days

Stats

Proton-M


57th

Mission

7th

Mission of 2011

2011


67th

Orbital launch attempt