STS-99STS-99 saw the deployment of the Shuttle Radar Topography Mission mast and the antenna turned to its operation position. After a successful checkout of the radar systems, mapping began.An international crew assigned to STS-99 takes a break from training to pose for the traditional crew portrait at NASA's...STS-99 Commander Kevin Kregel goes through countdown procedures on the flight deck aboard the Space Shuttle Endeavour during Terminal Countdown...The STS-99 crew members designed the flight insignia for the Shuttle Radar Topography Mission (SRTM), the most ambitious Earth mapping...The STS-99 crew wave to onlookers as they step eagerly from the Operations and Checkout Building enroute to Launch Pad...KENNEDY SPACE CENTER, Fla. -- Space Shuttle Endeavour is viewed atop the mobile launcher platform on its way to Launch...The brilliant exhaust from the solid rocket boosters (center) and blue mach diamonds from the main engine nozzles mark the...KENNEDY SPACE CENTER, Fla. -- Twin columns of flame flow from the solid rocket boosters, lighting the billows of steam...Launched February 11, 2000, the STS-99 Shuttle Radar Topographic Mission (SRTM) was the most ambitious Earth mapping mission to date....JSC2000E01556 (January 2000) --- With its C-band and X-band outboard antennae at work, the Earth-orbiting Space Shuttle Endeavour maps topography...S99-E-5546 (16 February 2000) --- Shuttle Radar Topography Mission (SRTM) antenna on the end of a 200 foot-long mast continues...STS099-703-082 (11-22 February 2000) --- Part of the Space Shuttle Endeavour's aft cargo bay, its vertical stabilizer and orbital maneuvering...The STS-99 crew pose for a "star-burst" pose in celebration of a successful Shuttle Radar Topographic Mission (SRTM) aboard NASA's...STS099-330-036 (11-22 February 2000) ---Astronaut Mamoru Mohri, mission specialist, on the aft flight deck of the Space Shuttle Endeavour, checks...STS099-327-003 (11-22 February 2000) --- Astronauts Gerhard P.J. Thiele and Janet L. Kavandi of the Red Team check Shuttle Radar...STS099-729-086 (11-22 February 2000) ---In this 70mm frame photographed by one of the STS-99 crew members, the city of Miami...STS099-723-054 (11-22 February 2000) --- A wide-sweeping occlusion in the South Pacific Ocean caught the eye of one of the...STS099-734-012 (11-22 February 2000) ---As photographed by one of the STS-99 crew members aboard the Space Shuttle Endeavour, a shallow...STS099-749-063 (11-22 February 2000) ---One of the astronauts aboard the Space Shuttle Endeavour for the STS-99 mission recorded this 70mm...STS099-752-073 (11-22 February 2000) ---As seen by the crew aboard the Space Shuttle Endeavour, the Moon appears above Earth's limb...STS099-753-032 (11-22 February 2000) ---This 70mm photograph, photographed from the Space Shuttle Endeavour, centers on the two westernmost Galapagos Islands--seahorse-shaped...KENNEDY SPACE CENTER, FLA. -- In the waning light after sundown, Space Shuttle Endeavour touches down on KSC's Shuttle Landing...