Phoenix Revises Method To Deliver Icy SampleJuly 27, 2008 -- NASA's Phoenix Mars Lander’s robotic arm will use a revised collection-and-delivery sequence overnight Sunday with the goal of depositing an icy soil sample in the lander’s oven. “We are going to modify the process we ran on Sol 60 to acquire another icy sample and attempt to deliver it to TEGA,” the Thermal and Evolved-Gas Analyzer, said Barry Goldstein, Phoenix project manager from NASA’s Jet Propulsion Laboratory in Pasadena, Calif. “We will repeat what we did successfully with small modifications to adjust for what we learned.” The Sol 60 effort on July 26 by Phoenix successfully obtained a sample by rasping 16 holes into and scraping the work trench informally named “Snow White.” Most of the sticky Martian soil adhered to the scoop even after the scoop was tipped and the rasp activated to help sprinkle soil into TEGA. The revised plan includes reducing the length of time the rasp operates as it makes the holes in the trench to reduce any potential heating of the sample, and for increasing the number of times the scoop is vibrated during the sample delivery action. Images received Sunday morning showed the soil collected on Sol 60 had fallen out of the scoop, which had been left inverted over the lander’s deck.  |
THE MISSIONThe University of Arizona is honored to be the first public university to lead a mission to Mars. The Phoenix Mars Mission, scheduled to land May 25, 2008, is the first in NASA's "Scout Program." Scouts are designed to be highly innovative and relatively low-cost complements to major missions being planned as part of the agency's Mars Exploration Program. Learn More |
The Phoenix Mission is led by Principal Investigator Peter H. Smith of The University of Arizona, supported by a science team of CO-Is, with project management at NASA's Jet Propulsion Laboratory and development partnership with Lockheed Martin Space Systems. International contributions are provided by the Canadian Space Agency; the University of Neuchatel, Switzerland; the universities of Copenhagen and Aarhus Denmark; the Max Planck Institute, Germany; and the Finnish Meteorological Institute. Additional information on Phoenix is online at here and here. JPL, a division of the California Institute of Technology in Pasadena, manages Mars Odyssey and Mars Reconnaissance Orbiter for the NASA Science Mission Directorate, Washington. Additional information on NASA's Mars program is online at here.
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