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![]() Spirit's high-gain antenna successfully deployed BY WILLIAM HARWOOD STORY WRITTEN FOR CBS NEWS "SPACE PLACE" & USED WITH PERMISSION Posted: January 5, 2004 In another major milestone, the Spirit Mars rover's high-gain antenna was successfully deployed Sunday night and aimed at Earth. A few minutes before 12:30 a.m. EST today, the first direct-to-Earth communications session over the high-data-rate antenna began, prompting a now-familiar round of cheers and applause in mission control at the Jet Propulsion Laboratory in Pasadena, Calif. The X-band antenna is critical for Spirit's mission. Flight controllers plan to beam commands directly to the high-gain antenna every morning to tell the rover what to do. Science data from the rover can be beamed back through the high-gain or through NASA's Mars Global Surveyor and Mars Odyssey orbiters.
In the meantime, more low-resolution black-and-white Navcam images were downlinked, a series of pictures that will be stitched together into a panorama to help engineers judge how Spirit's mostly collapsed landing airbags change shape as daily heating and cooling affects trapped gases. Engineers are trying to determine what, if anything, needs to be done to further retract sections of partially inflated airbags that might block one or more of Spirits possible exit routes off the lander.
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