Mariner 3

The Mariner 3 spacecraft
Mission type	Mars flyby
Operator	NASA / JPL
COSPAR ID	1964-073A
SATCAT no.	923
Mission duration	Launch failure
Spacecraft properties
Manufacturer	Jet Propulsion Laboratory
Launch mass	260.8 kilograms (575 lb)
Power	300 watts (at Mars encounter)
Start of mission
Launch date	November 5, 1964, 19:22:05 (1964-11-05UTC19:22:05Z) UTC
Rocket	Atlas LV-3 Agena-D
Launch site	Cape Canaveral LC-13
Orbital parameters
Reference system	Heliocentric

Mariner 3 was a NASA spacecraft. It was the third spacecraft in the Mariner program. It was designed to take photos of the planet Mars after an eight month journey studying interplanetary (between planet) space.^[1] However, the spacecraft lost power eight hours after launch, and it never achieved the correct Mars trajectory. It eventually entered a heliocentric (Sun-centred) orbit.^[1]

• "Mariner 3". NASA. Retrieved 2011-09-04.
• "Mariner 3". NASA. Archived from the original on 2011-05-16. Retrieved 2011-09-04.

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