November 28, 1964, 14:22:01 (1964-11-28UTC14:22:01Z) UTC
Rocket
Atlas LV-3 Agena-D
Launch site
Cape Canaveral LC-12
End of mission
Last contact
December 21, 1967
Orbital parameters
Reference system
Heliocentric
Semi-major axis
199,591,220 kilometers (124,020,230 mi)
Eccentricity
0.17322[2]
Perihelion altitude
166,052,670 kilometers (103,180,350 mi)[2]
Aphelion altitude
234,867,290 kilometers (145,939,770 mi)[2]
Inclination
2.544 degrees[2]
Period
567.11 days[2]
Epoch
July 14, 1965, 21:00:57 UTC[2]
Flyby of Mars
Closest approach
July 15, 1965, 01:00:57UTC
Distance
9,846 kilometers (6,118 miles)
Instruments
Cosmic dust detector Cosmic ray telescope Geiger counter/ionization chamber Helium magnetometer Solar plasma probe Trapped radiation detector TV camera
Mariner
← Mariner 3
Mariner 5 →
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,[3] 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, dead planet largely changed the scientific community's view of life on Mars.[4][5] 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. Initially expected to remain in space for eight months, Mariner 4's mission lasted about three years in solar orbit.[6] On December 21, 1967, communications with Mariner 4 were terminated.
^"Mariner 4". NASA Solar System Exploration. NASA's Solar System Exploration website. Retrieved November 30, 2022.
^
Momsen, Bill (2006). "Mariner IV – First Flyby of Mars: Some personal experiences". p. 1. Archived from the original on June 20, 2002. Retrieved February 11, 2009.
^
Momsen, Bill (2006). "Mariner IV – First Flyby of Mars: Some personal experiences". p. 2. Archived from the original on December 30, 2008. Retrieved February 11, 2009.
^"Mariner 4 – Mars Missions – NASA Jet Propulsion Laboratory". NASA Jet Propulsion Laboratory (JPL). Retrieved August 30, 2022.
Mariner4 (together with Mariner 3 known as Mariner-Mars 1964) was the fourth in a series of spacecraft intended for planetary exploration in a flyby...
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explored by uncrewed spacecraft and rovers, with the first flyby by the Mariner4 probe in 1965, the first Mars orbiter by the Mars 2 probe in 1971, and...
Martian subsurface to find currently habitable environments. In 1965, the Mariner4 probe discovered that Mars had no global magnetic field that would protect...
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first observed by Mariner4, and a survey of the planet to identify suitable landing sites. Major global surveys were conducted by Mariner 9 and Viking 1...
planets. Mariner 10 was launched approximately two years after Mariner 9 and was the last spacecraft in the Mariner program. (Mariner 11 and Mariner 12 were...
Paul Mariner (22 May 1953 – 9 July 2021) was an English football player and coach. A centre forward during his playing days, Mariner began his career...
The Mercury Mariner is a compact crossover SUV that was introduced in 2005. It is a sibling of the Mazda Tribute and Ford Escape, although it is more...
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successful flyby of Mars was on 14–15 July 1965, by NASA's Mariner4. On November 14, 1971, Mariner 9 became the first space probe to orbit another planet...
considerable length." Later in the same year, the arrival of the United States' Mariner4 spacecraft debunked for good the idea that Mars could be inhabited by...
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relatively large weather phenomena. The first Martian flyby mission was Mariner4, which arrived in 1965. That quick two-day pass (July 14–15, 1965) with...
event). The Viking 1 orbiter was not expected to decay until at least 2019. Mariner 9, which entered Mars orbit in 1971, was expected to remain in orbit until...
are part of the popular tradition." Eventually, the flyby of Mars by Mariner4 in 1965 conclusively determined that the canals were mere optical illusions...
The Mariner Moose is the team mascot of the Seattle Mariners, a Major League Baseball team. He is an anthropomorphic moose who mainly appears and performs...
Global Information
