astro.wikisort.org - Asteroid

(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 by	LINEAR
Discovery site	Lincoln Lab's ETS
Discovery date	24 June 1998
Designations
MPC designation	(52760) 1998 ML14
Alternative designations	1998 ML14
Minor planet category	NEO · Apollo[1][2] · PHA[1][2]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	15.54 yr (5,676 days)
Aphelion	3.9104 AU
Perihelion	0.9071 AU
Semi-major axis	2.4088 AU
Eccentricity	0.6234
Orbital period (sidereal)	3.74 yr (1,366 days)
Mean anomaly	21.557°
Mean motion	0° 15m 48.96s / day
Inclination	2.4274°
Longitude of ascending node	338.72°
Argument of perihelion	20.324°
Earth MOID	0.0167 AU · 6.5 LD
Physical characteristics
Dimensions	1.0±0.05 km[3] 0.81±0.16 km[4] 1.17 km (derived)[5]
Synodic rotation period	14.98±0.06 h[6] 14.98±0.06 h[7] 14.28±0.01 h[8]
Geometric albedo	0.27±0.24[4] 0.20 (assumed)[5]
Spectral type	S (Tholen)[5]
Absolute magnitude (H)	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

External links

• Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
• Dictionary of Minor Planet Names, Google books
• Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
• (52760) 1998 ML14 at NeoDyS-2, Near Earth Objects—Dynamic Site
  • Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
• (52760) 1998 ML14 at ESA–space situational awareness
  • Ephemerides · Observations · Orbit · Physical Properties · Summary
• (52760) 1998 ML14 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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