2020 HA10
Discovery [1]
Discovered byMount Lemmon Survey
Discovery siteMount Lemmon Obs.
Discovery date28 April 2020
(first observed only)
Designations
2020 HA10
NEO · Atira [1]
Orbital characteristics [2]
Epoch 30 April 2020 (JD 2458969.5)
Uncertainty parameter 8
Observation arc5 days
Aphelion0.9471 AU
Perihelion0.6937 AU
0.8204 AU
Eccentricity0.1544
0.74 yr (271.4 d)
117.5°
1° 19m 33.6s / day
Inclination49.66°
103.46°
27.1°
Earth MOID0.087 AU
Physical characteristics
Mean diameter
100–500 m (est. at 0.05–0.15)
19.1±0.8[2]

    2020 HA10 is a near-Earth object of the Atira group.

    Discovery

    2020 HA10 was discovered at G=20.4 mag on 2020 April 28 by the Mount Lemmon Survey using the 0.5 m reflector + 10 K CCD.[3]

    Orbit and classification

    It orbits the Sun at a distance of 0.7–0.9 AU once every 9 months (271 days; semi-major axis of 0.82 AU). Its orbit has an eccentricity of 0.15 and an unusually high inclination of 50° with respect to the ecliptic.[2]

    The orbital evolution of 2020 HA10 leads the object into the Aten orbital realm periodically.[4]

    References

    1. 1 2 "2020 HA10". Minor Planet Center. Retrieved 17 August 2020.
    2. 1 2 3 "JPL Small-Body Database Browser: (2020 HA10)" (2020-05-03 last obs.). Jet Propulsion Laboratory. Retrieved 17 August 2020.
    3. ↑ "MPEC 2020-J11 : 2020 HA10". Minor Planet Electronic Circular. 1 May 2020. Retrieved 18 August 2020.
    4. ↑ de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (30 July 2020). "Near the Edge of the Atira Orbital Realm: Short-term Dynamical Evolution of 2020 HA10 and 2020 OV1". Research Notes of the American Astronomical Society. 4 (7): 123. Bibcode:2020RNAAS...4..123D. doi:10.3847/2515-5172/abaa4f. S2CID 225388347.
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