Venera 9
…mass 4,936 kg (10,882 lb) Landing mass 1,560 kg (3,440 lb) Payload mass 660 kg (1,455 lb) Start of mission Launch date June 8, 1975, 02:38 UTC Rocket Proton-K/D Launch site Baikonur 81/24 End of mission Last contact Orbiter primary mission: March 22, 1976 Lander: October 22, 1975 Orbital parameters Reference…