HTV-1

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	10500 kg
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[1]
Unberthing date	30 October 2009, 15:18 UTC[2][failed verification]
RMS release	30 October 2009
Time berthed	43 days
Cargo
Mass	4500 kg[3]
Pressurised	3600 kg
Unpressurised	900 kg
Fuel	2432 kg
HTV ISS Resupply Kounotori 2 →

HTV-1, also known as the HTV Demonstration Flight^[4] or HTV Technical Demonstration Vehicle,^[5] 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, 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.