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Voskhod | Zenit-2M 18

Soviet Space Program | Russia
Plesetsk Cosmodrome, Russian Federation
April 2, 1971, 8:20 a.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.

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Tsiklon-2 | US-A 2

Yuzhnoye Design Bureau | Ukraine
Baikonur Cosmodrome, Republic of Kazakhstan
April 1, 1971, 11:29 a.m.
Status: Launch Successful
Mission:

Active radar satellite for ocean surveillance powered by a nuclear reactor.

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Thor Delta E1 | Isis 2

McDonnell Douglas | United States of America
Vandenberg SFB, CA, USA
April 1, 1971, 2:57 a.m.
Status: Launch Successful
Mission:

ISIS 2 was an ionospheric observatory instrumented with a sweep- and a fixed-frequency ionosonde, a VLF receiver, energetic and soft particle detectors, an ion mass spectrometer, an electrostatic probe, a retarding potential analyzer, a beacon transmitter, a cosmic noise experiment, and two photometers.

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Voskhod | Zenit-4M 13

Soviet Space Program | Russia
Plesetsk Cosmodrome, Russian Federation
March 27, 1971, 10:59 a.m.
Status: Launch Successful
Mission:

The soviet Zenit-4M (Rotor, 11F691) was an improved version of the Zenit-4 high resolution reconnaissance satellite and was part of the Vostok-based Zenit-family.

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Thorad SLV-2H Agena D | KH-4B 14

McDonnell Douglas | United States of America
Vandenberg SFB, CA, USA
March 24, 1971, 9:06 p.m.
Status: Launch Successful
Mission:

The KH-4B (Keyhole-4B) was sixth optical reconnaissance satellite version in the Corona-program.

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Titan 33B | Jumpseat 1

Lockheed Martin | United States of America
Vandenberg SFB, CA, USA
March 21, 1971, 3:45 a.m.
Status: Launch Successful
Mission:

Signal intelligence satellite operating from highly elliptic Molniya-type orbits.

Elliptical Orbit
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Kosmos-3M | DS-P1-M 4

Russian Space Forces | Russia
Plesetsk Cosmodrome, Russian Federation
March 18, 1971, 9:45 p.m.
Status: Launch Successful
Mission:

ASAT target satellite

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Thor Delta M6 | IMP 6

McDonnell Douglas | United States of America
Cape Canaveral SFS, FL, USA
March 13, 1971, 4:15 p.m.
Status: Launch Successful
Mission:

Earth-orbiting satellite designed to study interplanetary and outer magnetospheric regions.

Elliptical Orbit
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Kosmos 11K63 | Zenit-2M 17

Strategic Rocket Forces | Russia
Kapustin Yar, Russian Federation
March 5, 1971, 8:15 a.m.
Status: Launch Failure
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.

Low Earth Orbit
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Voskhod | DS-P1-Yu 40

Soviet Space Program | Russia
Plesetsk Cosmodrome, Russian Federation
March 5, 1971, 1:02 a.m.
Status: Launch Failure
Mission:

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

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