15460 Manca

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15460 Manca
Discovery [1]
Discovered by A. Boattini
L. Tesi
Discovery site San Marcello Pistoiese Obs.
Discovery date25 December 1998
Designations
(15460) Manca
Named after
 Francesco Manca
(Italian astronomer) [2]
1998 YD10 ·1994 ET1
main-belt  · Koronis [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 66.30 yr (24,216 days)
Aphelion 3.1671 AU
Perihelion 2.6460 AU
2.9065 AU
Eccentricity 0.0896
4.96 yr (1,810 days)
316.30°
0° 11m 56.04s / day
Inclination 3.2872°
92.423°
320.81°
Physical characteristics
Dimensions 5.17 km (calculated) [3]
5.354±0.315 km [4] [5]
7.2723±0.0209 h [6]
0.24 (assumed) [3]
0.2949±0.0586 [4]
0.295±0.059 [5]
X [7]  · S [3]
12.97±0.29 [7]  ·13.3 [4]  ·13.6 [1] [3]  ·14.114±0.005(S) [6]

    15460 Manca (provisional designation 1998 YD10) is a Koronian asteroid from the outer region of the asteroid belt, approximately 5 kilometers in diameter.

    Contents

    The asteroid was discovered on 25 December 1998, by Italian astronomers Andrea Boattini and Luciano Tesi at Pistoia Mountains Astronomical Observatory in San Marcello Pistoiese, central Italy. [8] It was named for Italian amateur astronomer Francesco Manca. [2]

    Orbit and classification

    Manca belongs to the Koronis family, a family of stony asteroids in the outer main-belt with nearly ecliptical orbits. It orbits the Sun at a distance of 2.6–3.2  astronomical units (AU) once every 4 years and 12 months (1,810 days). Its orbit has an eccentricity of 0.09 and an inclination of 3° with respect to the ecliptic. [1]

    The asteroid's observation arc begins 48 years prior to its official discovery observation, with a precovery taken at the Palomar Observatory in March 1950. [8]

    Physical characteristics

    Manca has also been characterized as an X-type asteroid by Pan-STARRS photometric survey. [7]

    Rotation period

    In August 2012, a rotational lightcurve was obtained for Manca from photometric observations made at the Palomar Transient Factory, California. Analysis of the lightcurve gave a rotation period of 7.2723 hours with a brightness variation of 0.22 magnitude ( U=2 ). [6]

    Diameter and albedo

    According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Manca measures 5.35 kilometers in diameter and its surface has an albedo of 0.295. [4] [5] The Collaborative Asteroid Lightcurve Link assumes a stony standard albedo for members of the Koronis family of 0.24, and calculates a diameter of 5.17 kilometers with an absolute magnitude of 13.6. [3]

    Naming

    This minor planet was named for Italian amateur astronomer Francesco Manca (born 1966), member of the "Gruppo Astrofili Brianza" and an active observer of near-Earth objects, and potentially hazardous asteroids in particular, at Sormano Astronomical Observatory in northern Italy. [2] The official naming citation was published by the Minor Planet Center on 13 October 2000 ( M.P.C. 41388). [9]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 15460 Manca (1998 YD10)" (2016-07-08 last obs.). Jet Propulsion Laboratory . Retrieved 26 June 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(15460) Manca". Dictionary of Minor Planet Names – (15460) Manca. Springer Berlin Heidelberg. p. 825. doi:10.1007/978-3-540-29925-7_9147. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 "LCDB Data for (15460) Manca". Asteroid Lightcurve Database (LCDB). Retrieved 5 November 2016.
    4. 1 2 3 4 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv: 1109.6407 . Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90.
    5. 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv: 1109.4096 . Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68 . Retrieved 5 November 2016.
    6. 1 2 3 Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv: 1504.04041 . Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75 . Retrieved 5 November 2016.
    7. 1 2 3 Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv: 1506.00762 . Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007 . Retrieved 5 November 2016.
    8. 1 2 "15460 Manca (1998 YD10)". Minor Planet Center. Retrieved 5 November 2016.
    9. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 5 November 2016.
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