The launch of Roscosmos Soyuz-M took place on 31 Mar 1976, launching the Kosmos 811 (Zenit-4MT #10, Orion #10) mission. The launch site was Plesetsk, Arkhangelsk Oblast, Russia. The payload was deployed in a LEO orbit at an altitude of 269.
DATE AND TIME
OPERATOR
LAUNCH SITE
Arkhangelsk Oblast, Russia
VEHICLE
LEO
269km
72.8°
0.242
334km
204km