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 | |
| Mission type | ISS resupply |
|---|---|
| Operator | JAXA |
| COSPAR ID | 2020-030A |
| SATCAT no. | 45607 |
| Mission duration | 92 days |
| Spacecraft properties | |
| Spacecraft | Kounotori 9 |
| Spacecraft type | H-II Transfer Vehicle |
| Manufacturer | Mitsubishi Heavy Industries |
| Launch mass | 16500 kg[1] |
| Payload mass | 6200 kg |
| Dimensions | 9.8 meters in length, 4.4 metres in diameter |
| Start of mission | |
| Launch date | 20 May 2020, 17:31:00 UTC[2] |
| Rocket | H-IIB F9 (last) |
| Launch site | Tanegashima, LA-Y2 |
| Contractor | Mitsubishi Heavy Industries |
| End of mission | |
| Disposal | Deorbited |
| Decay date | 20 August 2020, 07:07 UTC |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Low Earth orbit |
| Inclination | 51.66° |
| Epoch | 20 May 2020 |
| Berthing at International Space Station | |
| Berthing port | Harmony nadir |
| RMS capture | 25 May 2020, 12:13 UTC[3] |
| Berthing date | 25 May 2020, 14:46 UTC[3] |
| Unberthing date | 18 August 2020, 13:51 UTC |
| RMS release | 18 August 2020, 17:36 UTC |
| Time berthed | 85 days, 2 hours, 50 minutes |
| Cargo | |
| Mass | 6200 kg |
| Pressurised | 4300 kg |
| Unpressurised | 1900 kg |
Kounotori 9 (こうのとり9号機), also known as HTV-9 was the 9th flight of the H-II Transfer Vehicle, a robotic cargo spacecraft to resupply the International Space Station (ISS).[4][5] It was launched on 20 May 2020, at 17:31:00 UTC.[6]
Kounotori 9 is the last HTV of the original model, with following missions replaced with the HTV-X.[4][7]
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