(163899) 2003 SD 220

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Asteroid
(163899) 2003 SD 220
(163899) 2003 SD220
Properties of the orbit ( animation )
Orbit type Aten type
Major semi-axis 0.827  AU
eccentricity 0.211
Perihelion - aphelion 0.653 AU - 1.001 AU
Inclination of the orbit plane 8.51 °
Sidereal period 274.55 d
Physical Properties
Medium diameter 0.80 ± 0.02 km
Albedo 0.31 ± 0.04
Rotation period 285 ± 5 h
Absolute brightness 17.36 likes
history
Explorer LONEOS
Date of discovery September 23, 2003
Another name 2003 SD 220 , 2000 AD 229
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items.

(163899) 2003 SD 220 is a near-Earth asteroid that crosses the earth's orbit and whose perihelion lies within the orbit of Venus . 2003 SD 220 was discovered on September 23, 2003 as part of the LONEOS project .

The asteroid moves to Earth in a 4: 3 orbital resonance , causing a close encounter every three years. On December 24, 2015, 2003 SD 220 approached the earth to a distance of 11 million kilometers. On December 22, 2018, the distance was just 2.8 million kilometers. In 2070 the asteroid will pass Earth at a distance of 2.7 million kilometers.

See also

Individual evidence

  1. ↑ a b c iopscience.iop.org: NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos , accessed December 22, 2018
  2. ↑ planetarysciences.org: Brightness curve from (163899) 2003 SD 220 , accessed on December 22, 2018
  3. ↑ jpl.nasa.gov: Radar Images of a Christmas-Eve Asteroid: An Early Gift for Astronomers , accessed December 22, 2018