(52760) 1998 ML14

(52760) 1998 ML14, provisional designation 1998 ML14, is a stony asteroid, classified as near-Earth object of the Apollo group and potentially hazardous asteroid, approximately 1 kilometer in diameter. It was discovered on 24 June 1998, by the LINEAR survey at the Lincoln Laboratory's Experimental Test Site in Socorro, New Mexico.[2]

(52760) 1998 ML14
Discovery[1]
Discovered byLINEAR
Discovery siteLincoln Lab's ETS
Discovery date24 June 1998
Designations
(52760) 1998 ML14
1998 ML14
NEO · Apollo[1][2] · PHA[1][2]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc15.54 yr (5,676 days)
Aphelion3.9104 AU
Perihelion0.9071 AU
2.4088 AU
Eccentricity0.6234
3.74 yr (1,366 days)
21.557°
0° 15m 48.96s / day
Inclination2.4274°
338.72°
20.324°
Earth MOID0.0167 AU · 6.5 LD
Physical characteristics
Dimensions1.0±0.05 km[3]
0.81±0.16 km[4]
1.17 km (derived)[5]
14.98±0.06 h[6]
14.98±0.06 h[7]
14.28±0.01 h[8]
0.27±0.24[4]
0.20 (assumed)[5]
S (Tholen)[5]
16.93±0.01[7] · 17.02[5][6] · 17.5[1]

    Description

    1998 ML14 orbits the Sun at a distance of 0.9–3.9 AU once every 3 years and 9 months (1,366 days). Its orbit has an eccentricity of 0.62 and an inclination of 2° with respect to the ecliptic.[1] It is also a Mars-crossing asteroid.

    Shortly after its discovery, 1998 ML14 was imaged by radar at Goldstone and Arecibo.[9]

    The study showed that the asteroid has a rotation period of 15 hours, and a shape that is roughly spherical, with some steep protrusions and large craters.[6][7][8]

    On 24 August 2013 it passed at a distance of 21.9 Lunar distances.[1] It was hoped to be observed by Goldstone radar.[10]

    Numbering and naming

    This minor planet was numbered by the Minor Planet Center on 16 February 2003.[11] As of 2018, it has not been named.[2]

    References

    1. "JPL Small-Body Database Browser: 52760 (1998 ML14)" (2014-01-07 last obs.). Jet Propulsion Laboratory. Retrieved 23 October 2017.
    2. "52760 (1998 ML14)". Minor Planet Center. Retrieved 23 October 2017.
    3. Ostro, Steven J.; Hudson, R. Scott; Benner, Lance A. M.; Nolan, Michael C.; Giorgini, Jon D.; Scheeres, Daniel J.; et al. (September 2001). "Radar observations of asteroid 1998 ML14". Meteoritics and Planetary Science. 36 (9): 1225–1236. Bibcode:2001M&PS...36.1225O. doi:10.1111/j.1945-5100.2001.tb01956.x.
    4. Mueller, Michael; Delbo', M.; Hora, J. L.; Trilling, D. E.; Bhattacharya, B.; Bottke, W. F.; et al. (April 2011). "ExploreNEOs. III. Physical Characterization of 65 Potential Spacecraft Target Asteroids" (PDF). The Astronomical Journal. 141 (4): 9. Bibcode:2011AJ....141..109M. doi:10.1088/0004-6256/141/4/109.
    5. "LCDB Data for (52760)". Asteroid Lightcurve Database (LCDB). Retrieved 23 October 2017.
    6. Hicks, M. D.; Weissman, P. R.; Rabinowitz, D. L.; Chamberlin, A. B.; Buratti, B. J.; Lee, C. O. (September 1998). "Close Encounters: Observations of the Earth-crossing Asteroids 1998 KY26 and 1998 ML14". American Astronomical Society. 30: 1029. Bibcode:1998DPS....30.1006H.
    7. Hicks, M.; Weissman, P. (August 1998). "1998 ML_14". IAU Circ. 6987 (6987): 1. Bibcode:1998IAUC.6987....1H.
    8. Warner, Brian D. (April 2014). "Near-Earth Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2013 September–December". The Minor Planet Bulletin. 41 (2): 113–124. Bibcode:2014MPBu...41..113W. ISSN 1052-8091. PMC 7268210. PMID 32494788.
    9. "NEA CIRCULAR POLARIZATION RATIO RANKING". Asteroid Radar Research. 11 April 2006. Archived from the original on 25 April 2001. Retrieved 15 December 2009.
    10. Goldstone radar
    11. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 24 February 2018.
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