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H-II Transfer Vehicle KOUNOTORI (HTV)
HTV9 Mission
HTV9 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.
News
Reentry of KOUNOTORI9 was confirmed (August 20, 2020)
The reentry of the H-II Transfer Vehicle KOUNOTORI9 (HTV9) into Earth's atmosphere was confirmed.
KOUNOTORI9 performed final de-orbit maneuver for reentry (August 20, 2020)
KOUNOTORI9 performed three de-orbit maneuvers for reentry into Earth's atmosphere.
HTV9 Mission Schedule (as of August 20, 2020)
| Item | Schedule*1 |
|---|---|
| HTV flight name | HTV9 (KOUNOTORI9) (The ninth HTV flight: HTV9) |
| Date of Launch | May 21, 2020 |
| Time of Launch | 2:31:00 a.m. |
| HTV9 capture | 9:13 p.m., May 25, 2020 |
| Berthing completion to the ISS | 3:25 a.m., May 26, 2020 |
| Departure from the ISS | 2:37 a.m., August 19, 2020 |
| Estimated re-entry*2 | 4:07 p.m., August 20, 2020 |
| Estimated splashdown | 4:19 p.m. - 4:57 p.m., August 20, 2020 |
- *1 All times are Japan Standard Time (JST. UTC + 9 hours)
- *2 Altitude at 120 km
Major payload to be delivered on board HTV9
Major payload to be delivered on board HTV9 is as follows.
Cargo in the Pressurized Logistics Carrier (PLC)
- Utilization/experiment-related items
- integrated Standard Imager for Microsatellites (iSIM)
- Solid Combustion Experiment Module (SCEM) and related equipments for the "FLARE"
- Broadcasting related equipments for "The Space Frontier Studio KIBO"
- Cargo for the ISS crew
- Fresh Food
- Crew Provisioning Items
Cargo in the Unpressurized Logistics Carrier (ULC)
- ISS Li-ion battery Orbital Replacement Units (ORUs)
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