Japanese Resupply Ship, SpaceX Crew Dragon Nearing Launch Dates

A Japanese cargo ship is poised to resupply the Expedition 63 crew just as a U.S. space freighter has completed its stay at the International Space Station. The three station residents are also getting ready to welcome two Commercial Crew members in just over two weeks.

Japan’s ninth H-II Transfer Vehicle cargo mission (HTV-9) is due to lift off on May 20 aboard an H-IIB rocket from the Tanegashima Space Center. The cargo craft from JAXA (Japan Aerospace Exploration Agency) is delivering fresh food and supplies, new science experiments and new lithium-ion batteries to upgrade the station’s power systems.

The HTV-9 will arrive at the station on May 25 where Commander Chris Cassidy, with Flight Engineer Ivan Vagner as back up, will capture the cargo craft with the Canadarm2 robotic arm. Ground controllers will take over afterward and remotely install the HTV-9 to the Harmony module’s Earth-facing port where it will stay for two months.

Just two days later, NASA will launch the first crew from the United States since 2011 aboard the SpaceX Crew Dragon. Veteran astronauts Bob Behnken and Doug Hurley will take a 19-hour trip to the station while testing systems inside the Crew Dragon. It will automatically dock on May 28 to the International Docking Adapter located on the Harmony module’s forward port. After the hatches open, the duo will join the Expedition 63 crew to ramp up science and maintenance operations aboard the orbiting lab.