Ōsumi (satellite)

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Ōsumi
Osumi satellite.jpg
Organization Institute of Space and Aeronautical Science, University of Tokyo (now part of JAXA)
Mission type Earth science
Satellite of Earth
Launch date February 11, 1970 at 04:25 UTC
Launch vehicle Lambda 4S-5
Orbital decay August 2, 2003
COSPAR ID 1970-011A
Mass 24.0 kg[1]
Power 10.3 watt[1]
Orbital elements
Eccentricity .262379[2]
Inclination 31.0°[2]
Orbital period 144.0 minutes[2]
Apoapsis 5,140 km[2]
Periapsis 350 km[2]

Ōsumi (or Ohsumi) is the name of the first Japanese artificial 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, USA and France to release an artificial satellite into successful orbit.

[edit] Parameters

The Ōsumi satellite weighed 24 kilograms. It orbited the Earth with a perigee of 323 km and an apogee of 2440 km, and with an inclination of 31.0°.[3] Ōsumi decayed from orbit and burned up in the atmosphere on August 2, 2003.[4]

[edit] References

  1. ^ a b "Ohsumi". NASA NSSDC Master Catalog. NSSDC, NASA. http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1970-011A. Retrieved 2008-02-12. 
  2. ^ a b c d e "Trajectory Details". NASA NSSDC Master Catalog. NSSDC, NASA. http://nssdc.gsfc.nasa.gov/nmc/spacecraftOrbit.do?id=1970-011A. Retrieved 2008-02-12. 
  3. ^ "Osumi". Encyclopedia Astronautica. Astronautix. http://www.astronautix.com/craft/osumi.htm. Retrieved 2008-03-02. 
  4. ^ "SPX-598". SPACEWARN Bulletin. NSSDC, NASA. http://nssdcftp.gsfc.nasa.gov/miscellaneous/spacewarn/spx.598. Retrieved 2008-03-02. 

[edit] External links