2020 UA - Misplaced Pages

Near earth asteroid

2020 UA
Discovery
Discovered by	Mount Lemmon Survey
Discovery site	Mt. Lemmon Obs.
Discovery date	16 October 2020
Designations
MPC designation	2020 UA
Alternative designations	C3K1WP2
Minor planet category	NEO · Aten
Orbital characteristics
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 4
Observation arc	4 days
Aphelion	1.206 AU
Perihelion	0.7537 AU
Semi-major axis	0.980 AU
Eccentricity	0.23093
Orbital period (sidereal)	0.97 yr
Mean anomaly	133.866°
Mean motion	1° 0 57.005 / day
Inclination	2.762°
Longitude of ascending node	27.909°
Time of perihelion	20 January 2020 05:17 UT
Argument of perihelion	27.909°
Earth MOID	0.000204 AU (30,500 km)
Physical characteristics
Mean diameter	5–12 m (assumed albedo 0.05–0.25)
Apparent magnitude	20.8 (at discovery)
Absolute magnitude (H)	28.39±0.38 28.43

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.

References

^ "MPEC 2020-U52 : 2020 UA". Minor Planet Electronic Circular. Minor Planet Center. 17 October 2020. Retrieved 19 January 2021.
^ "2020 UA". Minor Planet Center. International Astronomical Union. Retrieved 19 January 2021.
"2020 UA". NEO Exchange. Las Cumbres Observatory. 19 October 2020. Retrieved 19 January 2021.
Gray, Bill (17 October 2020). ""Pseudo-MPEC" for C3K1WP2". Project Pluto. Retrieved 19 January 2021.
^ "JPL Small-Body Database Browser: 2020 UA" (2020-10-20 last obs.). Jet Propulsion Laboratory. Retrieved 19 January 2021.
Bruton, Dan. "Conversion of Absolute Magnitude to Diameter for Minor Planets". Department of Physics, Engineering, and Astronomy. Stephen F. Austin State University. Archived from the original on 23 July 2011. Retrieved 19 January 2021.

External links

Near-Earth Asteroid 2020 UA extremely close encounter: online observations – 20 Oct. 2020
2020 UA at NeoDyS-2, Near Earth Objects—Dynamic Site
- Ephemerides · Observation prediction · Orbital info · MOID · Proper elements · Observational info · Close approaches · Physical info · Orbit animation
2020 UA at ESA–space situational awareness
- Ephemerides · Observations · Orbit · Physical properties · Summary
2020 UA at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

v t e 2020 in space
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Impact events	2020 China bolide
Selected NEOs	Asteroid close approaches 594913 ꞌAylóꞌchaxnim 2020 BX12 2020 CW 2020 CD3 (temporary satellite) (52768) 1998 OR2 2020 HS7 2020 JJ 2020 LD (163348) 2002 NN4 2020 OY4 2020 QG 2011 ES4 2018 VP1 2020 SO (space debris) 2020 SW 2020 SL1 2020 UA 2020 VV 2020 VT4 (153201) 2000 WO107 (501647) 2014 SD224 2020 XL5
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Space exploration	Spitzer retirement (Jan 2020) BepiColombo (Earth gravity assist; Apr 2020, Venus gravity assist; Oct 2020) OSIRIS-REx (sample collection from asteroid Bennu; Oct 2020) Hayabusa2 (sample return from asteroid Ryugu; Dec 2020) Chang'e 5 (lunar sample return; Dec 2020)
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Designation Groups List Moon Meanings of names
Asteroid	Active Aten asteroid Asteroid belt Family Jupiter trojan Near-Earth Spectral types
Distant minor planet	Centaur Neptune trojan Damocloid Trans-Neptunian object Detached Kuiper belt Oort cloud Scattered disc

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