Mission Overview

Cosmos 428 was a third generation, low resolution Soviet photo surveillance satellite launched from the Baikonur cosmodrome aboard a Soyuz rocket. It also contained a scintillation spectrometer sensitive to x-rays › 30 keV, with a 2 deg x 17 deg field of view. In addition, there was an x-ray telescope which operated in the range 2-30 keV. Though its mission was brief, it detected several x-ray sources which were correlated to already identified Uhuru point sources.

Launch Information
Launch Date: 1971-06-24 at 08:09:00 UTC
Launch Vehicle: Soyuz
Launch Site: Tyuratam (Baikonur Cosmodrome), U.S.S.R
Decay Date: 1971-07-06

Trajectory Details
Type: Orbiter
Central Body: Earth
Epoch start: 1971-06-24 00:00:00 UTC

Orbital Parameters
Periapsis 208.0 km
Apoapsis 271.0 km
Period 89.0999984741211 minutes
Inclination 51.79999923706055°
Eccentricity 0.004757000133395195