Nadezhda (satellite)

Nadezhda (Russian: Надежда, means Hope in English) was a civilian satellite navigation system, part of the space segment of International Cospas-Sarsat Programme.

The system consisted of four satellites, each with a mass of 870 kg, diameter of 2m and length of 3.5.

[1] They orbit at an inclination of 89 degrees and an altitude of 1,000 km.

A newer version, called Nadezhda-M is reportedly smaller than the original one.

[2] The satellites were designed and manufactured by NPO PM.