| Kosmos 2457 | |
| Mission Type: | Navigation |
| Operator: | Russian Space Forces |
| Cospar Id: | 2009-070B |
| Satcat: | 36112 |
| Spacecraft: | GC 733 |
| Spacecraft Type: | Uragan-M |
| Manufacturer: | Reshetnev ISS |
| Dimensions: | diameter |
| Power: | 1,540 watts |
| Launch Date: | UTC |
| Launch Rocket: | Proton-M/DM-2 |
| Launch Site: | Baikonur 81/24 |
| Orbit Reference: | Geocentric |
| Orbit Regime: | Medium Earth orbit |
| Orbit Eccentricity: | 0.0001 |
| Orbit Inclination: | 64.81 degrees |
| Orbit Period: | 675.76 minutes |
| Apsis: | gee |
Kosmos 2457 (Russian: Космос 2457 meaning Cosmos 2457) is one of a set of three Russian military satellites launched in 2009 as part of the GLONASS satellite navigation system. It was launched with Kosmos 2456 and Kosmos 2458.
This satellite is a GLONASS-M satellite, also known as Uragan-M, and is numbered Uragan-M No. 733.
Kosmos 2456/7/8 were launched from Site 81/24 at Baikonur Cosmodrome in Kazakhstan. A Proton-M carrier rocket with a Blok DM upper stage was used to perform the launch which took place at 10:38 UTC on 14 December 2009. The launch successfully placed the satellites into Medium Earth orbit. It subsequently received its Kosmos designation, and the international designator 2009-070B. The United States Space Command assigned it the Satellite Catalog Numbers 36112.
It is in the first orbital plane of the GLONASS constellation, in orbital slot 6. It started operations on 24 January 2010.