14968 Kubáček

14968 Kubáček
Discovery [1]
Discovered by A. Galád
A. Pravda
Discovery site Modra Obs.
Discovery date 23 August 1997
Designations
MPC designation 14968 Kubáček
Named after
 Dalibor Kubáček
(astronomer)[2]
1997 QG · 1987 DG3
1998 XT89
main-belt · (middle) [3]
Orbital characteristics [1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc 29.29 yr (10,698 days)
Aphelion 2.8129 AU
Perihelion 2.3192 AU
2.5661 AU
Eccentricity 0.0962
4.11 yr (1,501 days)
152.97°
0° 14m 23.28s / day
Inclination 5.4431°
150.32°
296.87°
Physical characteristics
Dimensions 4.71 km (calculated)[3]
4.81±0.23 km[4]
4.89±0.01 h[5]
0.20 (assumed)[3]
0.210±0.046[4]
S [3]
13.90[4] · 14.0[1][3] · 14.20±0.12[6]

    14968 Kubáček, provisional designation 1997 QG, is a stony asteroid from the middle region of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 23 August 1997, by Slovak astronomers Adrián Galád and Alexander Pravda at Modra Observatory, Slovakia.[7]

    The S-type asteroid orbits the Sun at a distance of 2.3–2.8 AU once every 4 years and 1 month (1,501 days). Its orbit has an eccentricity of 0.10 and an inclination of 5° with respect to the ecliptic.[1] The first precovery was taken at the French Caussols Observatory in 1987, extending the asteroid's observation arc by 10 years prior to its discovery.[7]

    A rotational light-curve for this asteroid was obtained from photometric observations made by the discovering astronomer Adrián Galád at Modra Observatory in April 2008. The light-curve showed a rotation period of 4.89±0.01 hours with a brightness variation of 0.48 in magnitude (U=3-).[5]

    According to the survey carried out by NASA's space-based Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures 4.8 kilometers in diameter and its surface has an albedo of 0.21,[4] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 4.7 kilometers.[3]

    The minor planet is named in honor of astronomer Dalibor Kubáček (b. 1957), who explored the coma of comets at the Slovak Academy of Sciences in Bratislava. He readily instructed the peculiar methods of image processing to students and friends, as well as to the discoverers of this minor planet.[2] Naming citation was published on 27 April 2002 (M.P.C. 45339).[8]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 14968 Kubacek (1997 QG)" (2016-06-08 last obs.). Jet Propulsion Laboratory. Retrieved 3 December 2016.
    2. 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (14968) Kubáček. Springer Berlin Heidelberg. p. 819. ISBN 978-3-540-00238-3. Retrieved 6 April 2016.
    3. 1 2 3 4 5 6 "LCDB Data for (14968) Kubacek". Asteroid Lightcurve Database (LCDB). Retrieved 17 May 2016.
    4. 1 2 3 4 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794Freely accessible. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 17 May 2016.
    5. 1 2 Galad, Adrian; Kornos, Leonard; Vilagi, Jozef (January 2010). "An Ensemble of Lightcurves from Modra". The Minor Planet Bulletin. 37 (1): 9–15. Bibcode:2010MPBu...37....9G. ISSN 1052-8091. Retrieved 17 May 2016.
    6. ↑ 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:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 17 May 2016.
    7. 1 2 "14968 Kubacek (1997 QG)". Minor Planet Center. Retrieved 6 April 2016.
    8. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 17 May 2016.

    External links

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