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 · (inner) [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 29.06 yr (10,615 days)
Aphelion 2.8126 AU
Perihelion 2.3224 AU
2.5675 AU
Eccentricity 0.0954
4.11 yr (1,503 days)
56.849°
0° 14m 22.2s / day
Inclination 5.4438°
150.33°
297.17°
Physical characteristics
Dimensions 4.81±0.23 km[4]
4.71 km (calculated)[3]
4.89±0.01 h[5]
0.210±0.046[4]
0.20 (assumed)[3]
S [3]
14.0[1][3]
13.90[4]
14.20±0.12[6]

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

    The S-type asteroid orbits the Sun at a distance of 2.3–2.8 AU once every 4 years and 1 month (1,503 days). Its orbit has an eccentricity of 0.10 and an inclination of 5° with respect to the ecliptic.[1] Due to a precovery at the French Caussols Observatory from 1987, the asteroid's observation arc begins a decade earlier than its actual discovery date.[7]

    In 2008, the discovering astronomer Adrián Galád obtained a rotational light-curve based on photometric observations at Modra Observatory. It showed a rotation period of 4.89±0.01 hours with a brightness amplitude of 0.48 in magnitude (U=3-).[5]

    According to the survey carried out by NASA's 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 (CALL) 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 Dalibor Kubáček (b. 1957), who explored the coma of comets using image processing at the Slovak Academy of Sciences in Bratislava He readily instructed this technique to students and friends, as well as to the discoverers of this minor planet.[2]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 14968 Kubacek (1997 QG)" (2016-03-17 last obs.). Jet Propulsion Laboratory. Retrieved April 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 April 2016.
    3. 1 2 3 4 5 6 "LCDB Data for (14968) Kubacek". Asteroid Lightcurve Database (LCDB). Retrieved April 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:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved April 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 April 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:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved April 2016.
    7. 1 2 "14968 Kubacek (1997 QG)". Minor Planet Center. Retrieved April 2016.

    External links


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