NASA Logo, National Aeronautics and Space Administration
NASA Space Science Data Coordinated Archive Header

Cosmos 2318

NSSDCA/COSPAR ID: 1995-037C

Description

Cosmos 2318 was a Russian Global Navigation Satellite System (GLONASS) satellite launched from the Baikonur cosmodrome aboard a Proton rocket. Originally established in order to locate the Soviet Union's civil aircraft and its merchant and fishing vessels, the signals were used by many American GPS system receivers as a complement/backup to the GPS system itself. The operational system contained 21 satellites in 3 orbital planes, with 3 on-orbit backups. Each satellite was identified by its slot number, which defined the orbital plane (1-8, 9-16, 17-24) and the location within the plane. The 3 orbital planes were separated 120 degrees, and the satellites within the same orbit plane by 45 degrees. The orbits were roughly circular with an inclination of about 64.8 degrees, a semi-axis of 25,440 km, and a period of 11h 15m 44s.

The 3-axis stabilized spacecraft possessed a mass of about 1,400 kg, a slight increase over the 1,250 original model. The diameter and height of the satellite bus were approximately 2.4 m and 3.7 m, respectively, with a solar array span of 7.2 m for an electrical power generation capability of 1.6 kW at beginning of life. The aft payload structure housed 12 primary antennas for L-band transmissions. Laser corner-cube reflectors were also carried to aid in precise orbit determination and geodetic research.

Alternate Names

  • 23622
  • Cosmos2318
  • 1995-037C

Facts in Brief

Launch Date: 1995-07-24
Launch Vehicle: Proton-K
Launch Site: Tyuratam (Baikonur Cosmodrome), Kazakhstan
Mass: 1400 kg
Nominal Power: 1600 W

Funding Agency

  • Scientific Production Association(Russia) Russia

Discipline

  • Navigation/Global Positioning

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

 

Personnel

NameRoleOriginal AffiliationE-mail
[USA.gov] NASA Logo - nasa.gov