HTV-1
 HTV-1 before berthing | |
| Mission type | ISS resupply |
|---|---|
| Operator | JAXA |
| COSPAR ID | 2009-048A |
| SATCAT no. | 35817 |
| Mission duration | 52 days |
| Spacecraft properties | |
| Spacecraft | HTV-1 |
| Spacecraft type | H-II Transfer Vehicle |
| Manufacturer | Mitsubishi Heavy Industries |
| Launch mass | 16000 kg |
| Dry mass | 11500 kg (note: empty mass without cargo ) |
| Start of mission | |
| Launch date | 10 September 2009, 17:01:46 UTC |
| Rocket | H-IIB 304 (F1) |
| Launch site | Tanegashima, Yoshinobu-2 |
| Contractor | Mitsubishi Heavy Industries |
| End of mission | |
| Disposal | Deorbited |
| Decay date | 1 November 2009, 21:26 UTC |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Low Earth orbit |
| Inclination | 51.66° |
| Berthing at ISS | |
| Berthing port | Harmony |
| RMS capture | 17 September 2009 |
| Berthing date | 17 September 2009, 22:26 UTC |
| Unberthing date | 30 October 2009, 15:18 UTC |
| RMS release | 30 October 2009 |
| Time berthed | 43 days |
| Cargo | |
| Mass | 4500 kg |
| Pressurised | 3600 kg |
| Unpressurised | 900 kg |
| Fuel | 2432 kg |
| |
HTV-1, also known as the HTV Demonstration Flight or HTV Technical Demonstration Vehicle, was the first flight of the Japanese Space Agency (JAXA) H-II Transfer Vehicle, launched in September 2009 to resupply the International Space Station and support the JAXA Kibō module (きぼう, Kibō; lit. 'Hope') or Japanese Experiment Module (JEM). It was an uncrewed cargo spacecraft carrying a mixture of pressurised and unpressurised cargo to the International Space Station. After a 52-day successful mission, HTV departed the ISS on 31 October 2009 after being released by the station's robotic arm. The spacecraft re-entered in the atmosphere of Earth on 1 November 2009 and disintegrated on re-entry as planned.