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2001 Mars Odyssey
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Instruments

THEMIS
THEMIS instrument

The Thermal Emission Imaging System weighs 11.2 kilograms (24.7 pounds). It is 54.5 centimeters (21.5 inches) by 37 centimeters (14.6 inches) by 28.6 centimeters (11.3 inches). THEMIS runs on 14 watts of electrical power.

How THEMIS Works
THEMIS instrument site at Arizona State University


GRS

The Gamma Ray Spectrometer weighs 30.5 kilograms (67.2 pounds) and uses 32 watts of power. Along with its cooler, the Gamma Ray Spectrometer measures 46.8 centimeters (18.4 inches) by 53.4 centimeters (21.0 inches) by 60.4 centimeters (23.8 inches).


The neutron spectrometer is 17.3 centimeters (6.8 inches) by 14.4 centimeters (5.7 inches) by 31.4 centimeters (12.4 inches).


The high-energy neutron detector measures 30.3 centimeters (11.9 inches) by 24.8 centimeters (9.8 inches) by 24.2 centimeters (9.5 inches). The instrument's central electronics box is 28.1 inches (11.1 inches) by 24.3 centimeters (9.6 inches) by 23.4 centimeters (9.2 inches).


How GRS Works
GRS instrument site at the University of Arizona


grs-draw.jpg

Gamma Sensor Head


MARIE

The Mars Radiation Environment Experiment weighs 3.3 kilograms (7.3 pounds) and uses 7 watts of power. It measures 29.4 centimeters (11.6 inches) by 23.2 centimeters (9.1 inches) by 10.8 centimeters (4.3 inches). MARIE
How MARIE Works
MARIE instrument site at Johnson Space Center
MARIE




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