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instrument

ROSALIND FRANKLIN (ROVER)

Target: Mars  
State: Planned

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state

Mission

Kind: Mars flyby

State: Successful

Place: Mars

Operator: NASA / JPL

Instruments: Cosmic dust detector Cosmic ray telescope Geiger counter/ionization chamber Helium magnetometer Solar plasma probe Trapped radiation detector TV camera

Date

Start:

Duration: 3 years, 23 days

Mission Ending

Last Contact: December 21, 1967

Rocket

Rocket: Atlas LV-3 Agena-D

Kind: NASA / JPL

Manufacturer: Jet Propulsion Laboratory

Mass: 260.8 kilograms (575 lb)

Launch Site: Cape Canaveral LC-12

Flyby

1º Flyby: Mars

Orbit

Reference System: Heliocentric

Lander

"The journey, not the arrival, matters; the voyage, not the landing." - Paul Theroux



Mariner 4 (together with Mariner 3 known as Mariner–Mars 1964) was the fourth in a series of spacecraft intended for planetary exploration in a flyby mode. It was designed to conduct closeup scientific observations of Mars and to transmit these observations to Earth. Launched on November 28, 1964, Mariner 4 performed the first successful flyby of the planet Mars, returning the first close-up pictures of the Martian surface. It captured the first images of another planet ever returned from deep space, their depiction of a cratered, seemingly dead world, largely changed the scientific community's view of life on Mars. Other mission objectives were to perform field and particle measurements in interplanetary space in the vicinity of Mars and to provide experience in and knowledge of the engineering capabilities for interplanetary flights of long duration. On December 21, 1967, communications with Mariner 4 were terminated.

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