The Molniya were Soviet communication satellites operating from an inclined highly elliptical earth orbit of 500 km × 40000 km with 12 hour period for coverage of high northern latitudes.
The Molniya was a modification of the well-known R-7 Semyorka rocket and had four stages. The 8K78 resulted from a crash program by the Korolev Bureau to develop a booster for launching planetary probes. A larger third stage was added along with a fourth stage (Blok L) that was designed to fire in-orbit to send the payload out of LEO. The basic R-7 core was also structurally strengthened and given more powerful engines. A rushed development produced multiple malfunctions of the upper stages, which led to its being replaced by the improved Molniya-M in 1964, but there were enough 8K78s left to continue flying them into 1967.
The Strategic Rocket Forces of the Russian Federation are a separate-troops branch of the Russian Armed Forces that control Russia's land-based intercontinental ballistic missiles (ICBMs).
WIKI9 Low Earth Orbit communication satellites with Ku, Q and V band payloads for the G60 constellation operated by Shanghai Spacesail Technologies with …
10 Low Earth Orbit communication satellites with Ku, Q and V band payloads for the G60 constellation operated by Shanghai Spacesail Technologies with…
Sentinel-3C is the third satellite in the Sentinel-3 constellation, which provides high-accuracy optical, radar and altimetry data for marine and lan…
3 high-throughput communications satellites in Medium Earth Orbit (MEO) built by Boeing and operated by SES.
Note: Payload and customer identities were not publicly announced. 5th of the BlackSky Gen-3 high resolution Earth-imaging satellites.
USSF-153 is a classified mission for the United States Space Force. It is possibly a batch of classified LEO satellites based on SpaceX’s Starshield …
6 Chinese military “remote sensing” satellite of unknown purposes.
A batch of 27 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Second test flight of the Isar Spectrum launch vehicle. This launch will carry 5 cubesats and 1 non-separable experiment as part of European Space Ag…
GISAT-1A (GEO Imaging Satellite) is an Indian earth observing satellite operating from geostationary orbit to facilitate continuous observation of In…