Mitsubishi Heavy IndustriesH-IIB 304Yoshinobu Launch Complex LP-2, Tanegashima Space Center, Japan
Kounotori 1 (HTV-1)
Launched
September 10, 2009
Image: JAXA
Summary
Kounotori 1 (HTV-1) launched on a Mitsubishi Heavy Industries H-IIB 304 from Yoshinobu Launch Complex LP-2, Tanegashima Space Center, Japan on September 10, 2009. It was Mitsubishi Heavy Industries's 10th launch, 1st this year and humanity's 5,005th orbital launch attempt. It was the 1st H-IIB 304 flight. The payload was bound for low Earth orbit (LEO). HTV 1, one of 4 catalogued objects, reached a 171 × 305 km orbit inclined 51.7°. The spacecraft was HTV Technical Demonstration Vehicle (HTV-1). 4 objects from this launch are catalogued, one of them a payload.
- Watch
- HTV技術実証機/H-IIB試験機クイックレビュー/HTV1/H-IIB TF Quick ReviewJAXA | 宇宙航空研究開発機構
- Booster
- No booster details on record.
- Mission
- Resupply · Low Earth Orbit (LEO)
- Milestone
- 1st H-IIB 304 flightMitsubishi Heavy Industries's 10th launch1st this yearhumanity's 5,005th orbital launch attempt51st orbital launch attempt this year
Spacecraft
HTV Technical Demonstration Vehicle (HTV-1)
HTV-1, also known as the HTV Demonstration Flight or HTV Technical Demonstration Vehicle, was the first Japanese Space Agency (JAXA) H-II Transfer Vehicle, launched in September 2009 to resupply the International Space Station and support the JAXA Kibo laboratory or JEM. It was an unmanned cargo spacecraft carrying a mixture of pressurised and unpressurised cargo to the 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 the Earth's atmosphere on 2 November and disintegrated on re-entry as planned.
- Destination: International Space Station
- Mission length: 52 days
- Docked September 17, 2009 at Harmony nadir
The Kounotori spacecraft burned up as planned upon entering Earth's atmosphere.
Flight preview
Orbit: as tracked
HTV 1 · NORAD 35817 · 2009-048 · Space-Track · tracking 1 of 4 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 2009-048A
- Epoch
- 2009-09-10 16:33:13 UTC
- Mean motion
- 16.15802799 rev/day
- Eccentricity
- 0.0100785
- Inclination
- 51.6503°
- Ascending node
- 229.3823°
- Arg. of perigee
- 322.3627°
- Mean anomaly
- 37.0997°
- Element set
- 999
- Rev at epoch
- 99999
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO. Ascent drawn from padside's representative profile.
Catalogued objects
4 catalogued: 1 payload, 1 rocket stage, 2 components
- HTV 1 · NORAD 35817
H-2B F1 Stage 2 · re-entered September 14, 2009
Data from J. McDowell, planet4589.org
About this launch
Maiden flight of the uncrewed cargo spacecraft to International Space Station.
Pad

Yoshinobu Launch Complex LP-2, Tanegashima Space Center, Japan
1st launch from Yoshinobu Launch Complex LP-2, 1st this year · 47th from Tanegashima Space Center, Japan
18 launches from this pad · 99 from Tanegashima Space Center, Japan
under an hour after the previous launch from this pad
All launches from Tanegashima Space Center, JapanOpen in maps
Questions
When did Kounotori 1 (HTV-1) launch?
Kounotori 1 (HTV-1) launched on September 10, 2009. The time is known to the hour, not the minute.
Where can I watch Kounotori 1 (HTV-1)?
Coverage: HTV技術実証機/H-IIB試験機クイックレビュー/HTV1/H-IIB TF Quick Review. Watch the replay
What rocket launched Kounotori 1 (HTV-1)?
H-IIB 304, flown by Mitsubishi Heavy Industries. H-IIB 304 spec sheet
Where did Kounotori 1 (HTV-1) launch from?
Yoshinobu Launch Complex LP-2, Tanegashima Space Center, Japan.
What orbit did Kounotori 1 (HTV-1) reach?
HTV 1, one of 4 catalogued objects, reached a 171 × 305 km orbit inclined 51.7°.
Which program is Kounotori 1 (HTV-1) part of?
International Space Station. About International Space Station
