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Kosmos-3M | Sfera 13

Russian Space Forces | Russia
Plesetsk Cosmodrome, Russian Federation
Feb. 12, 1975, 3:30 a.m.
Status: Launch Successful
Mission:

The Sfera or Geoid series were the first soviet geodetic satellites to improve the accuracy of maps. The development of the satellites started in 1965 at NPO-PM.

Low Earth Orbit
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Delta 2914 | SMS 2

McDonnell Douglas | United States of America
Cape Canaveral SFS, FL, USA
Feb. 6, 1975, 10:04 p.m.
Status: Launch Successful
Mission:

Geostationary meteorological satellite

Geostationary Orbit
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Diamant BP4 | Starlette

Société d'étude et de réalisation d'engins balistiques | France
Guiana Space Centre, French Guiana
Feb. 6, 1975, 4:35 p.m.
Status: Launch Successful
Mission:

Passive French satellite dedicated to geodetic and geophysical studies

Low Earth Orbit
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Molniya-M | Molniya-2 12

Russian Space Forces | Russia
Plesetsk Cosmodrome, Russian Federation
Feb. 6, 1975, 4:49 a.m.
Status: Launch Successful
Mission:

Government communications satellite.

Elliptical Orbit
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Kosmos-3M | Tselina-O 26

Russian Space Forces | Russia
Plesetsk Cosmodrome, Russian Federation
Feb. 5, 1975, 1:15 p.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.

Low Earth Orbit
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Molniya-M | US-K 4

Russian Space Forces | Russia
Plesetsk Cosmodrome, Russian Federation
Jan. 30, 1975, 3:02 p.m.
Status: Launch Successful
Mission:

Early warning satellite

Elliptical Orbit
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Kosmos 11K63 | DS-P1-Yu 75

Strategic Rocket Forces | Russia
Plesetsk Cosmodrome, Russian Federation
Jan. 28, 1975, 12:05 p.m.
Status: Launch Successful
Mission:

The DS-P1-Yu series of satellites was used to calibrate space surveillance and early warning radars.

Low Earth Orbit
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Voskhod | Zenit-4MK 35

Soviet Space Program | Russia
Plesetsk Cosmodrome, Russian Federation
Jan. 23, 1975, 11 a.m.
Status: Launch Successful
Mission:

High resolution optical reconnaissance satellite of the Vostok-based Zenit family.

Low Earth Orbit
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Delta 2910 | Landsat 2

McDonnell Douglas | United States of America
Vandenberg SFB, CA, USA
Jan. 22, 1975, 5:55 p.m.
Status: Launch Successful
Mission:

Earth observation satellite

Sun-Synchronous Orbit
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Kosmos 11K63 | DS-P1-Yu 74

Strategic Rocket Forces | Russia
Plesetsk Cosmodrome, Russian Federation
Jan. 21, 1975, 11:04 a.m.
Status: Launch Successful
Mission:

The DS-P1-Yu series of satellites was used to calibrate space surveillance and early warning radars.

Low Earth Orbit
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