|Begin:||February 11, 1970, 04:25 UTC|
|Status:||burned up on August 2, 2003|
|Rotation time :||145 min|
|Orbit inclination :||31 °|
|Apogee height :||5140 km|
|Perigee height :||350 km|
Ōsumi (also Ohsumi , Japanese. お お す み ) is the name of the first Japanese satellite . The Osumi was launched on February 11, 1970 with a Lambda-4 rocket from the Kagoshima Space Center . The Ōsumi satellite weighed 12 kg. The orbit incline was 31 degrees, the perigee 350 km and the apogee 5140 km. Only a few hours after take-off, the satellite stopped transmitting.
With this launch, Japan became the fourth nation to launch a satellite into space with its own launch vehicle.
- according to ISAS ( Memento from May 11, 2013 in the Internet Archive )
- Ōsumi in the NSSDCA Master Catalog , accessed on April 11, 2012 (English).