[meteorite-list] Dawn Heads Toward Final Orbit
From: Ron Baalke <baalke_at_meteoritecentral.com>
Date: Thu, 29 Oct 2015 09:36:47 -0700 (PDT)
Dawn Heads Toward Final Orbit
Jet Propulsion Laboratory
October 26, 2015
Dawn Mission Status Report
NASA's Dawn spacecraft fired up its ion engine on Friday, Oct. 23, to
begin its journey toward its fourth and final science orbit at dwarf planet
Ceres. The spacecraft completed two months of observations from an altitude
of 915 miles (1,470 kilometers) and transmitted extensive imagery and
other data to Earth.
The spacecraft is now on its way to the final orbit of the mission, called
the low-altitude mapping orbit. Dawn will spend more than seven weeks
descending to this vantage point, which will be less than 235 miles (380
kilometers) from the surface of Ceres. In mid-December, Dawn will begin
taking observations from this orbit, including images at a resolution
of 120 feet (35 meters) per pixel.
Of particular interest to the Dawn team is Occator crater, home to Ceres'
bright spots. A new mosaic of images from Dawn's third science orbit highlights
the crater and surrounding terrain.
More information on the Dawn mission is online at:
NASA's Jet Propulsion Laboratory, Pasadena, Calif.
Elizabeth.Landau at jpl.nasa.gov
Received on Thu 29 Oct 2015 12:36:47 PM PDT