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

Nadezhda 1



Flown for the first time with a designator other than Cosmos, the Nadezhda civil navigation satellite lifted off from Plesetsk by a Cosmos C-1 booster. Carrying transponders for the COSPAS/SARSAT international search and rescue system, the satellite was also designated COSPAS 4. It was a cylinder, 2 m in diameter, 2.1 m long, with an extended boom. It was co-planar with Cosmos 1791 and, presumably, replaced it.

Alternate Names

  • 20103
  • COSPAS 4
  • Nadezhda1

Facts in Brief

Launch Date: 1989-07-04
Launch Vehicle: Modified SS-5 (SKean IRBM) plus Upper Stage
Launch Site: Plesetsk, U.S.S.R
Mass: 825 kg

Funding Agency

  • Unknown (U.S.S.R)


  • Navigation/Global Positioning

Additional Information

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

[] NASA Logo -