Spacecraft Specifications

Mariner 4


Launch date:		November 28, 1964   14:22EST
Mars arrival date:	July 14, 1965  (closest approach of 9844 km)

Launch vehicle:		Atlas-Agena SLV-3

Control system:		12 N2 jets
			3 gyros, Canopus sensor
			Earth sensor,  Mars sensor
			2 primary sun sensors, 2 secondary sun sensors

Electrical power:	28 224 solar cells  producing 310 watts at Mars
			(Total solar panel area = 6.3m2)
			Silver-zinc battery w/ output of 1200 watts/hour

Propulsion:		Monopropellant hydrazine 
			225 newtons thrust 
			4-jet vane vector control

Launch weight:		260.8 kilograms

Dimensions:		Height: 2.89m	Width (panels extended): 6.88m

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Dr. David R. Williams,
NSSDCA, Mail Code 690.1
NASA Goddard Space Flight Center
Greenbelt, MD 20771

NASA Official: Dave Williams,
Original Page Author: Malcolm J. Shaw,
Last Updated: 06 January 2005, DRW