24260 Kriváň

24260 Kriváň, provisional designation 1999 XW127, is a stony Eunomian asteroid from the middle region of the asteroid belt, approximately 8 kilometers in diameter. It was discovered by Slovak astronomer Peter Kušnirák at the Czech Ondřejov Observatory on 13 December 1999, and named after the Kriváň mountain peak in Slovakia.[2][8]

24260 Kriváň
Discovery [1]
Discovered byP. Kušnirák
Discovery siteOndřejov Obs.
Discovery date13 December 1999
Designations
(24260) Kriváň
Named after
Kriváň (Slovak mountain)[2]
1999 XW127 · 1982 YG1
main-belt · Eunomia [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc40.95 yr (14,956 days)
Aphelion2.9352 AU
Perihelion2.2617 AU
2.5985 AU
Eccentricity0.1296
4.19 yr (1,530 days)
120.34°
0° 14m 7.08s / day
Inclination14.283°
43.060°
31.066°
Physical characteristics
Dimensions8.320±0.189 km[4][5]
8.36 km (calculated)[3]
3.318±0.001 h[6]
0.21 (assumed)[3]
0.2798±0.0414[4]
0.280±0.041[5]
S [3]
12.4[4] · 12.7[1][3] · 13.16±0.73[7]

    Orbit and classification

    The asteroid is a member of the Eunomia family, a large group of stony S-type asteroids and the most prominent family in the intermediate main-belt. It orbits the Sun in the central main-belt at a distance of 2.3–2.9 AU once every 4 years and 2 months (1,530 days). Its orbit has an eccentricity of 0.13 and an inclination of 14° with respect to the ecliptic.[1] The first precovery was taken at the Australian Siding Spring Observatory in 1976, extending the asteroid's observation arc by 23 years prior to its discovery.[8]

    Physical characteristics

    In December 2011, a rotational lightcurve was obtained for this asteroid from photometric observation by U.S. astronomer James W. Brinsfield at the Via Observatory in Thousand Oaks, California. It gave a well-defined rotation period of 3.318±0.001 hours with a brightness variation of 0.42 in magnitude (U=3).[6]

    According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 8.3 kilometers in diameter and its surface has an albedo of 0.28,[4] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo of 0.21 – derived from 15 Eunomia, the family's largest member and namesake – and calculates a diameter of 8.4 kilometers with an absolute magnitude of 12.7.[3]

    Naming

    This minor planet was named after the Kriváň mountain (2,494 metres (8,182 ft)), located in the High Tatras of Slovakia. It is considered to be the country's most beautiful peak and one of its national symbols.[2] The approved naming citation was published by the Minor Planet Center on 4 August 2001 (M.P.C. 43194).[9]

    References
    1. "JPL Small-Body Database Browser: 24260 Krivan (1999 XW127)" (2017-06-05 last obs.). Jet Propulsion Laboratory. Retrieved 5 July 2017.
    2. Schmadel, Lutz D. (2007). "(24260) Kriváň". Dictionary of Minor Planet Names – (24260) Kriváň. Springer Berlin Heidelberg. p. 874. doi:10.1007/978-3-540-29925-7_9769. ISBN 978-3-540-00238-3.
    3. "LCDB Data for (24260) Krivan". Asteroid Lightcurve Database (LCDB). Retrieved 17 August 2016.
    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. 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 2 December 2016.
    6. Brinsfield, James W. (April 2012). "Asteroid Lightcurve Analysis at the Via Capote Observatory: 2011 Apr-Dec". The Minor Planet Bulletin. 39 (2): 55–57. Bibcode:2012MPBu...39...55B. ISSN 1052-8091. Retrieved 17 August 2016.
    7. 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 17 August 2016.
    8. "24260 Krivan (1999 XW127)". Minor Planet Center. Retrieved 17 August 2016.
    9. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 17 August 2016.

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