From Space.com:
SpaceX is expected to launch a small Malaysian satellite Monday night during the fifth flight of the company's Falcon 1 booster.
The company, formed in 2002 to lower the cost of space travel, had not officially confirmed the scheduled launch late Sunday night, but sources indicated preparations were on track.
The 70-foot-tall rocket has five hours to launch Monday, beginning at 2300 GMT (7 p.m. EDT).
Liftoff will occur from Omelek Island, a seven-acre strip of land at Kwajalein Atoll in the Marshall Islands. The launch pad is part of the U.S. Army's Reagan Test Site.
The launch window opens at 11 a.m. Tuesday local time in the Marshall Islands.
Fueled by refined kerosene and liquid oxygen, the black-and-white launcher will propel the RazakSAT spacecraft into orbit during a mission featuring two burns of the upper stage.
The flight was postponed from April 20 to give engineers more time to remedy launch vibrations that could damage the satellite on its way to space. SpaceX installed a vibration isolation system to reduce loads on the satellite, the company said in a statement.
RazakSAT is launching for ATSB, a Malaysian satellite operator pioneering space technology in that country.
The 400-pound satellite is bound for a circular orbit about 425 miles high with an inclination of 9 degrees, according to ATSB.
Monday's launch will be the fifth time the start-up company has tried to launch the small two-stage booster. The first three Falcon 1 rockets fell short of orbit during launches in 2006, 2007 and August 2008.
The privately-developed rocket finally achieved orbit in September 2008 with a dummy payload.
The successful launch also tested the upper stage's ability to restart its engine, a critical capability that will be needed to deliver RazakSAT to its operational orbit.
RazakSAT carries a medium-sized aperture camera, or MAC, for Earth observations. The imager has a black-and-white resolution of about 8.2 feet and a color resolution of approximately 16.4 feet, according to ATSB.
The six-sided satellite, standing nearly four feet tall, will be used by customers, researchers and government users.
Applications for RazakSAT imagery include agriculture, environmental monitoring, exploration, forestry, mapping, transportation, utilities management and urban planning, according to ATSB.
The satellite's low-inclination orbit will bring RazakSAT over Malaysia up to a dozen times each day, increasing domestic image coverage over existing Earth observation orbiters.
RazakSAT is ATSB's second satellite, launching almost nine years after the smaller TiungSAT craft.
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