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 International Space Station Astronaut Leroy Chiao, like the rest of NASA, tracks key milestones for the Space Shuttle Return-to-Flight operations. A lucky overpass of the Space Station over Florida (United States) on April 6, 2005, allowed Leroy and his crew mate Salizhan Sharipov a unique view of the rollout of the Space Shuttle Discovery. At the time of his observations, Discovery was approximately midway between the Vehicle Assembly Building (VAB) and launch pad 39-B at Kennedy Space Center in Florida.
The Shuttle, mated with its solid-fuel booster rockets and orange external fuel tank, is visible on the wide Crawler-Transporter track (marked with white box and shown in an inset image). Moving at a maximum speed of 1 mile per hour (1.6 km/hr), the massive Crawler-Transporter, laden with a launch-configured Shuttle and Mobile Launch Platform, takes approximately 13 hours to move between the VAB and pad 39-B. Launch of the Discovery will mark NASA’s "Return to Flight" following the loss of the Shuttle Columbia with its crew on February 1, 2003. The primary goal for the upcoming Discovery mission will be to test several vehicle modifications and damage-assessment data sources, tools, and procedures. These modifications include a modified design for the external fuel tank, more cameras focused on the launch and ascent of the Shuttle, and detailed imaging of the Shuttle’s heat-resistant tiles and reinforced carbon-carbon surfaces on the wings and nosecap. |
| Source of material: NASA |
Last Update: 2005-Mai-06