Astronomy:2020 UA

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Short description: Near earth asteroid
2020 UA
Discovery [1][2]
Discovered byMount Lemmon Survey
Discovery siteMt. Lemmon Obs.
Discovery date16 October 2020
Designations
2020 UA
C3K1WP2 [3][4]
Minor planet categoryNEO · Aten [5]
Orbital characteristics [5]
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 4
Observation arc4 days
|{{{apsis}}}|helion}}1.206 AU
|{{{apsis}}}|helion}}0.7537 AU
0.980 AU
Eccentricity0.23093
Orbital period0.97 yr
Mean anomaly133.866°
Mean motion1° 0m 57.005s / day
Inclination2.762°
Longitude of ascending node27.909°
|{{{apsis}}}|helion}}20 January 2020 05:17 UT [5]
27.909°
Earth MOID0.000204 AU (30,500 km)
Physical characteristics
Mean diameter5–12 m (assumed albedo 0.05–0.25)[6]
Apparent magnitude20.8 (at discovery)[1]
Absolute magnitude (H)28.39±0.38[5]
28.43[2]


2020 UA is a tiny near-Earth asteroid around 5–12 metres (16–39 ft) across that passed within 46,100 km (28,600 mi) of Earth on 21 October 2020 at 02:00 UT.[5]

References

  1. ↑ 1.0 1.1 "MPEC 2020-U52 : 2020 UA". Minor Planet Electronic Circular. Minor Planet Center. 17 October 2020. https://minorplanetcenter.net/mpec/K20/K20U52.html. Retrieved 19 January 2021. 
  2. ↑ 2.0 2.1 "2020 UA". Minor Planet Center. International Astronomical Union. http://www.minorplanetcenter.net/db_search/show_object?object_id=2020+UA. Retrieved 19 January 2021. 
  3. ↑ "2020 UA". NEO Exchange. Las Cumbres Observatory. 19 October 2020. https://neoexchange.lco.global/target/60765/. Retrieved 19 January 2021. 
  4. ↑ Gray, Bill (17 October 2020). ""Pseudo-MPEC" for C3K1WP2". Project Pluto. https://projectpluto.com/neocp2/mpecs/C3K1WP2.htm. Retrieved 19 January 2021. 
  5. ↑ 5.0 5.1 5.2 5.3 5.4 "JPL Small-Body Database Browser: 2020 UA". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=54073339;cad=1. Retrieved 19 January 2021. 
  6. ↑ Bruton, Dan. "Conversion of Absolute Magnitude to Diameter for Minor Planets". Department of Physics, Engineering, and Astronomy. Stephen F. Austin State University. http://www.physics.sfasu.edu/astro/asteroids/sizemagnitude.html. Retrieved 19 January 2021. 

External links




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