Soyuz-U | Soyuz 35
Launch Successful
L - -- : -- : -- : --
Instantaneous launch window.
Launch Window
April 9, 1980, 1:38 p.m. - April 9, 1980, 1:38 p.m.
Instantaneous launch window.
April 9, 1980, 1:38 p.m. - April 9, 1980, 1:38 p.m.
Soyuz 35 was the eighth mission to visit the Salyut 6 space station and carried the EO-4 expedition, which was the fourth long-duration crew for the station. The mission began on April 9, 1980, 13:38:22 UTC, launching Commander Leonid Popov and Research Cosmonaut/Flight Engineer Valery Ryumin into orbit. They docked with the station the next day. During their 186-day stay on the station, EO-4 crew conducted various scientific experiments, some repairs and replacements to the station and were visited by three uncrewed Progress cargo spacecrafts and 4 crewed Soyuz vehicles. Soyuz 35 swapped vehicles with the Soyuz 37 crew, which allowed for a longer stay in orbit. The mission concluded with a safe landing back on Earth on October 11, 1980, 09:49:57 UTC.
Soyuz 35 was a Soyuz spacecraft which launched on 9 April 1980 13:38 UTC. It transported two cosmonauts of EO-4 to Salyut 6. The crew was Leonid Popov and Valery Ryumin. It also ferried down two cosmonauts from EP-5.
Soyuz Details
Date of
Birth: Aug. 31, 1945
Age: 80
Date of
Birth: Aug. 16, 1939
Age: 86
The Roscosmos State Corporation for Space Activities, commonly known as Roscosmos, is the governmental body responsible for the space science program of the Russian Federation and general aerospace research. Soyuz has many launch locations the Russian sites are Baikonur, Plesetsk and Vostochny however Ariane also purchases the vehicle and launches it from French Guiana.
INFO WIKINote: Payload and customer identities unconfirmed, identification based on mission patch and rocket drop zones analysis. 3rd of the BlackSky Gen-3…
3 Chinese satellites described as for “Space Environment Measurements” purposes. Actual usage not known.
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Sub-orbital launch under Rocket Lab’s Hypersonic Accelerator Suborbital Test Electron (HASTE) program. This mission was lead by MDA and deployed a…
The Sentinel-6 Michael Freilich (launched November 2020) and Sentinel-6B make up the Sentinel-6 mission, also known as Jason Continuity of Service (…
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
The ViaSat-3 is a series of three Ka-band satellites is expected to provide vastly superior capabilities in terms of service speed and flexibility fo…
Second flight of Blue Origin's New Glenn launch vehicle carrying the Escape and Plasma Acceleration and Dynamics Explorers (EscaPADE), a dual-spacecr…
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.