Proton launches in 1978
March 1978
30 Mar
Kosmos 997
Proton
May 1978
27 May
Ekran #13L
Proton
July 1978
18 Jul
Gran' #14L
Proton
August 1978
17 Aug
Ekran #15L
Proton
September 1978
October 1978
17 Oct
Ekran #14L
Proton
December 1978
19 Dec
Gorizont #11L
Proton