Ōsumi (satellite)

Ōsumi

Mission type	Earth science
Operator	Institute of Space and Aeronautical Science, University of Tokyo (now part of JAXA)
COSPAR ID	1970-011A
Spacecraft properties
Launch mass	24.0 kilograms (52.9 lb)[1]
Power	10.3 watt[1]
Start of mission
Launch date	February 11, 1970, 04:25 UTC
Rocket	Lambda-4S
Launch site	Kagoshima LA-L
Contractor	ISAS
End of mission
Last contact	February 12, 1970[2]
Decay date	August 2, 2003[3]
Orbital parameters
Reference system	Geocentric
Regime	Medium Earth
Eccentricity	0.262379[4]
Perigee	350 kilometres (220 mi)
Apogee	5,140 kilometres (3,190 mi)
Inclination	31.0 degrees[5]
Period	144.0 minutes

Ōsumi (or Ohsumi) is the name of the first Japanese satellite put into orbit, named after the Ōsumi Province in the southern islands of Japan. It was launched on February 11, 1970 at 04:25 UTC with a Lambda 4S-5 rocket from Uchinoura Space Center by Institute of Space and Aeronautical Science, University of Tokyo, now part of the Japan Aerospace Exploration Agency (JAXA). Japan became the fourth nation after the USSR, United States and France to release an artificial satellite into successful orbit on its own.

See also

• Timeline of artificial satellites and space probes

References

1. "Ohsumi". NASA NSSDC Master Catalog. NSSDC, NASA. Retrieved 2008-02-12.
2. "ohsumi". Retrieved 14 August 2015.
3. "SPX-598". SPACEWARN Bulletin. NSSDC, NASA. Retrieved 2008-03-02.
4. "Trajectory Details". NASA NSSDC Master Catalog. NSSDC, NASA. Retrieved 2008-02-12.
5. "Osumi". Encyclopedia Astronautica. Astronautix. Retrieved 2008-03-02.

External links

• Official Osumi webpage
• Kiwi-Osumi-image