WASHINGTON — A Japanese environmental monitoring satellite successfully deployed its solar paddle and main sensor antenna after being launched along with a Korean imaging spacecraft aboard an H-2A rocket, the Japan Aerospace Exploration Agency (JAXA) reported May 18.

JAXA’s Global Change Observation Mission 1st-Water (GCOM-W1) satellite and the Korean Multipurpose Satellite-3 (Kompsat-3) lifted off from Japan’s Tanegashima Space Center during the early morning hours May 18, the agency said.  Kompsat-3 separated from the rocket’s upper stage about 16 minutes after liftoff, with GCOM-W1 releasing just under 7 minutes later, JAXA said.

The launch also deployed JAXA’s Small Demonstration Satellite 4, which the agency declared to be healthy and transmitting data.

GCOM-W1, equipped with the Advanced Microwave Scanning Radiometer 2 instrument, will monitor global water circulation patterns in conjunction with the NASA-JAXA Global Precipitation Monitoring satellite, currently scheduled to launch in February 2014 on a Japanese rocket.

Kompsat-3 carries a German-supplied optical camera capable of collecting imagery at resolutions of 70 centimeters, meaning objects of that size and larger can be detected.

Dan Leone is the NASA reporter for SpaceNews, where he also covers other civilian-run U.S. government space programs and a growing number of entrepreneurial space companies. He joined SpaceNews in 2011.Dan earned a bachelor's degree in public communications...

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