Norad ID: 39221
| Spacetrack Directory Name | HTV-4 (KOUNOTORI 4) |
| Orbit launches |
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| Deorbitation date |
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| Days in orbit | 35 |
| Country/organisation of origin | Japonia (JPN) |
| Starting point | TANSC (Tanegashima Space Center, Japan) |
HTV-4, 39221 was a payload satellite owned by JAXA (JP) that was launched on Sat, 03 Aug 2013 UTC via an H-IIB launch vehicle from the Tanegashima Space Center (TNSTA). Payloads include a variety of satellites, spacecraft, and rockets equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.