STS-99 Mission Specialist Mamoru Mohri smiles as he dons his launch and entry suit during final launch preparations.

In the Operations and Checkout Building, STS-99 Mission Specialist Mamoru Mohri of Japan smiles as he dons his launch and entry suit during final launch preparations. Known as the Shuttle Radar Topography Mission (SRTM), STS-99 is scheduled for liftoff at 12:30 p.m. EST from Launch Pad 39A. The SRTM will chart a new course to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. The mission is expected to last 11days, with Endeavour landing at KSC Tuesday, Feb. 22, at 4:36 p.m. EST. This is the 97th Shuttle flight and 14th for Shuttle Endeavour