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Daily Updates - March 18, 2004
Spirit Status at end of sol 73

Spirit spent most of sol 73, which ended at 5:46 a.m. PST on March 18, 2004, analyzing targets in the drift dubbed "Serpent" with the microscopic imager. But before the close-ups began, Spirit acquired miniature thermal emission spectrometer inertia measurements on a disturbed area of soil. It also captured panoramic camera images of the scuffed area, dubbed "Bear Paw," the wheel that did the digging, and a nearby rock target named "White Elephant."

The microscopic imager work began at 11:00 am Mars Local Solar Time and was targeted at four points within the scuffed area on Serpent. The targets were given the bear-type names of Polar, Spectacled, Kodiak and Panda. For each target, seven microscopic images were taken to assure proper focus. At the Spectacled and Kodiak targets, a microscopic image with the filter in place was also taken for pseudo-color. Then the Moessbauer was placed on Panda and started an overnight integration. The arm activities were completed by about noon Mars Local Solar time, and were followed by the second thermal inertia measurement on the disturbed soil.

The rover took a siesta until 1:00 p.m. Mars Local Solar time, and then woke up for a series of mini thermal emission spectrometer observations on the rocks named "White Elephant," "Fruitcake," and "Dihedral." Then the third and last thermal inertia measurement was taken on the disturbed soil.

Spirit took another quick nap in the afternoon, and then completed sky measurements with the mini thermal emission spectrometer and panoramic camera.

Spirit will have an early start on sol 74, which will end at 6:25 a.m. PST March 19, 2004. Sol 74 will include a tool change to the alpha particle X-ray spectrometer and the beginning of an integration on the drift target named Panda. Before the sol is over, Spirit will also analyze an undisturbed area of the Serpent drift before continuing to drive around the rim of "Bonneville" crater.

Spirit Daily Update Archive