Russian Space Forces
| Russia
Plesetsk Cosmodrome, Russian Federation July 4, 1975, 12:56 a.m.
Status: Launch Successful
Mission:
The Tselina-O (11F616) was one component of two-satellite Tselina ELINT satellite system. Tselina-O provided general ELINT surveillance to be examined in detail by the larger Tselina-D satellites.
Soviet Space Program
| Russia
Plesetsk Cosmodrome, Russian Federation June 27, 1975, 1 p.m.
Status: Launch Successful
Mission:
The soviet Zenit-2M (Gektor, 11F690) was an improved version of the Zenit-2 area surveillance reconnaissance satellite. It was part of the Vostok-based Zenit-family.
Convair
| United States of America
Cape Canaveral SFS, FL, USA June 18, 1975, 9 a.m.
Status: Launch Successful
Mission:
Canyon was the first series of NRO's near geostationary ELINT/SIGINT satellites launched under the designation AFP-827 or Program 7500 for NRO's Program A. They were focussed on communications intelligence (COMINT).