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H-II Transfer Vehicle KOUNOTORI (HTV)

HTV8 Mission

Last Updated: August 7, 2019

HTV8 mission logo

Developed and built in Japan, the H-II Transfer Vehicle (HTV) known as "KOUNOTORI (meaning 'white stork' in Japanese)" is an unmanned cargo transfer spacecraft that delivers supplies to the International Space Station (ISS).
"KOUNOTORI" provides very basic support for ISS operations by delivering up to six tons of cargo and has the world's largest transportation capacity. It also has the unique function of carrying multiple numbers of large-size experimental instruments on one flight.


HTV8 media briefing at Tanegashima Space Center (July 19, 2019)

On July 19th, the H-II Transfer Vehicle (HTV8) "KOUNOTORI8" was unveiled to media at JAXA's Tanegashima Space Center (TNSC) along with the briefing of its upcoming mission.

» HTV8 Mission News

HTV8 Mission Schedule (as of August 7, 2019)

Item Schedule
HTV flight name HTV8 (KOUNOTORI8) (The eight HTV flight: HTV8)
Scheduled Date of Launch September 11, 2019
Scheduled Time of Launch 6:33 a.m. (Japan Standard Time, JST)*1
Reserved Launch Period September 12 through October 31, 2019*2
Arrival of the KOUNOTORI8 at ISS if launched as scheduled Evening of September 14, 2019 (Japan Standard Time)*1
  • *1 The launch time is subject to change as the ISS orbit is updated.
  • *2 Launch time and date during this period are pending, determined by the ISS operations and other status.

*All times are Japan Standard Time (JST. UTC + 9 hours)

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