{author}        National Aeronautics and Space Administration

{date}          10-Jan-2005

{description}   the Fischer Assembly building at Ball Aerospace in Boulder, Colo.
                Deep Impact will probe beneath the surface of Comet Tempel 1 on
                July 4, 2005, when the comet is 83 million miles from Earth, and
                reveal the secrets of its interior. After releasing a 3- by 3-
                foot projectile (impactor) to crash onto the surface, Deep
                Impacts flyby spacecraft will collect pictures and data of how
                the crater forms, measuring the craters depth and diameter, as
                well as the composition of the interior of the crater and any
                material thrown out, and determining the changes in natural
                outgassing produced by the impact. The impactor will separate
                from the flyby spacecraft 24 hours before it impacts the surface
                of Tempel 1's nucleus. The impactor delivers 19 Gigajoules
                (that's 4.8 tons of TNT) of kinetic energy to excavate the
                crater. This kinetic energy is generated by the combination of
                the mass of the impactor and its velocity when it impacts. To
                accomplish this feat, the impactor uses a high-precision star
                tracker, the Impactor Target Sensor (ITS), and Auto-Navigation
                algorithms developed by Jet Propulsion Laboratory to guide it to
                the target. Deep Impact is a NASA Discovery mission. Launch of
                Deep Impact is scheduled for Jan. 12 from Launch Pad 17-B, Cape
                Canaveral Air Force Station, Fla.

{highres}       3000 x 2025

{highsize}      396592

{hightype}      JPEG

{keywords}      NASA,KSC,Kennedy Space Center

{lowres}        320 x 215

{lowsize}       78814

{lowtype}       GIF

{mediumres}     1024 x 691

{mediumsize}    114938

{mediumtype}    JPEG

{number}        KSC-05PD-0114

{slideres}      120 x 108

{slidesize}     15500

{slidetype}     GIF

{tinyres}       100 x 67

{tinysize}      8401

{tinytype}      GIF

{title}         KSC-05PD-0114

{type}          Image

{end}