2013 ET

2013 ET
Radar imaging of 2013 ET
Discovery[1]
Discovered by Catalina Sky Survey
Discovery site Mount Lemmon Obs.
(first observed only)
Discovery date March 3, 2013
Designations
MPC designation 2013 ET
MPO 307059
NEO · Apollo
Orbital characteristics[2]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 3[1]
Observation arc 6[1] d
Aphelion 1.66881 AU (249.650 Gm)
Perihelion 0.74239 AU (111.060 Gm)
1.20560 AU (180.355 Gm)
Eccentricity 0.38421
1.32 yr (483.506 d)
1.32 yr
97.151°
0° 44m 39.048s /day[1]
Inclination 4.85153°
171.316°
81.911°
Earth MOID 0.00375179 AU (561,260 km)[2]
Mercury MOID 0.28725 AU (42,972,000 km)[1]
Physical characteristics
Dimensions 100 m (330 ft)[3]
23.1[2]

    2013 ET is a near-Earth asteroid that was first observed on March 3, 2013,[4] six days before its closest approach to Earth. It is estimated to be around 100 meters (330 feet) wide.[3][5]

    Its closest approach to Earth was 0.0065207 AU (975,480 km; 606,140 mi) on March 9, 2013 at 12:09 UT.[2][6] The asteroid also makes close approaches to Mars and Venus.[2] The asteroid was imaged by Goldstone radar on March 10, 2013.[7]

    See also

    References

    1. 1 2 3 4 5 "2013 ET". Minor Planet Center. Retrieved 21 August 2017.
    2. 1 2 3 4 5 "(2013 ET)". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 3629117. Retrieved 21 August 2017.
    3. 1 2 Wall, Mike (March 5, 2013). "Big Asteroid to Zoom By Earth This Weekend". Space.com.
    4. ↑ "MPEC 2013-E14 : 2013 ET". IAU Minor Planet Center. 2012-03-04. Retrieved 2012-03-09. (K13E00T)
    5. ↑ Dr. Lance A. M. Benner (2013-03-07). "2013 ET Goldstone Radar Observations Planning". NASA/JPL Asteroid Radar Research. Retrieved 2013-03-09.
    6. ↑ Gray, Melissa (March 7, 2013). "Asteroid to fly past Earth this weekend". Light Years. CNN.
    7. ↑ DC Agle (2013-03-18). "Goldstone Radar Snags Images of Asteroid 2013 ET". NASA/JPL. Retrieved 2013-03-19.


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