Apollinaris Patera
This month (April 1999), the Mars Global Surveyor Mars Orbiter
Camera (MOC) passed over the Apollinaris Patera volcano and captured
a patch of bright clouds hanging over its summit in the early martian
afternoon. This ancient volcano is located near the equator and--based
on observations from the 1970s Viking Orbiters--is thought to be as
much as 5 kilometers (3 miles) high. The caldera--the semi-circular crater
at the volcano summit--is about 80 kilometers (50 miles) across.
The color in this picture was derived from the MOC red and blue
wide angle camera systems and does not represent true color as
it would appear to the human eye (that is, if a human were in a
position to be orbiting around the red planet). Illumination is from the
upper left.
Malin Space Science Systems and the California Institute of
Technology built the MOC using spare hardware from the Mars Observer
mission. MSSS operates the camera from its facilities in San Diego, CA.
The Jet Propulsion Laboratory's Mars Surveyor Operations Project
operates the Mars Global Surveyor spacecraft with its industrial partner,
Lockheed Martin Astronautics, from facilities in Pasadena, CA and
Denver, CO.
Photo Credit: NASA/JPL/Malin Space Science Systems
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