19763 Klimesh

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19763 Klimesh
Discovery [1]
Discovered by NEAT
Discovery site Haleakala Obs.
Discovery date18 June 2000
Designations
(19763) Klimesh
Named after
Matthew Klimesh
(NEAT team member) [2]
2000 MC ·1998 AX10
main-belt  · Phocaea [3] [4]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 31.56 yr (11,526 days)
Aphelion 2.8640 AU
Perihelion 1.9179 AU
2.3910 AU
Eccentricity 0.1978
3.70 yr (1,350 days)
216.28°
0° 15m 59.76s / day
Inclination 23.298°
287.18°
56.652°
Physical characteristics
Dimensions5.65±0.88 km [5]
7.270±0.138 km [6] [7]
7.29 km (taken) [3]
7.291 km [8]
4.4178±0.0001 h [9]
101 h [lower-alpha 1]
0.1635 [8]
0.175±0.046 [6] [7]
0.24±0.07 [5]
S [3]
12.9 [1]  ·12.78±0.12 [lower-alpha 1]  ·13.2 [6]  ·13.27±0.13 [3] [8]  ·12.89±0.28 [10]  ·13.18 [5]

    19763 Klimesh (provisional designation 2000 MC) is a stony Phocaea asteroid and slow rotator from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. Discovered by NEAT at Haleakala Observatory in 2000, the asteroid was named for NEAT's software specialist Matthew Klimesh. [2]

    Contents

    Discovery

    Klimesh was discovered on 18 June 2000, by NASA's and JPL's Near-Earth Asteroid Tracking program (NEAT) with the Maui Space Surveillance System (MSSS) at the Haleakala Observatory site on the island of Maui, Hawaii, in the United States. [11] The body's observation arc begins 15 years prior to its official discovery observation, with a precovery from the Digitized Sky Survey taken at the Australian Siding Spring Observatory in September 1985. [11]

    Orbit and classification

    This asteroid is a member of the Phocaea family ( 701 ), [4] a group of asteroids with similar orbital characteristics. It orbits the Sun in the inner main-belt at a distance of 1.9–2.9  AU once every 3 years and 8 months (1,350 days). Its orbit has an eccentricity of 0.20 and an inclination of 23° with respect to the ecliptic. [1]

    Physical characteristics

    Klimesh has been characterized as a stony S-type asteroid. [3] It possibly rotates chaotically. [3]

    Slow rotator

    Klimesh is a slow rotator, as it has a rotation period of 101 hours with a brightness variation of 0.67 magnitude. The photometric observations were made by Czech astronomer Petr Pravec at the Ondřejov Observatory during the asteroid's 2011-opposition ( U=2 ). [lower-alpha 1]

    The result supersedes a period of 4.4 hours with an amplitude of 0.12, obtained from a fragmentary lightcurve by Italian astronomer Silvano Casulli ( U=1 ). [9]

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Klimesh has a diameter of 5.65 and 7.27 kilometers with an albedo of 0.24 and 0.175, respectively. [5] [6] [7] The Collaborative Asteroid Lightcurve Link adopts Petr Pravec's revised WISE-data, that is, an albedo of 0.1635 and a diameter of 7.29 kilometers with an absolute magnitude of 13.27. [3] [8]

    Naming

    This minor planet was named after JPL researcher Matthew Klimesh (born 1968), developer of the compression algorithm used for handling the vast amount of data obtained by the discovering NEAT program. Since 1996 at JPL's Communications Systems and Research Section, his work includes data compression, rate–distortion theory and channel coding. [2] The official naming citation was published by the Minor Planet Center on 9 May 2001 ( M.P.C. 42677). [12]

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    References

    1. 1 2 3 Pravec (2001): lightcurve plot of (19763) Klimesh with a rotation period 101 hours and a brightness amplitude of 0.67 mag. Analysis is based on an absolute magnitude of 12.78±0.12. It has a Quality Code of 2, which denotes a "good determination, pole likely correct to ±15-20°, but may be ambiguous with two or more solutions that are possible, or the sense of rotation is not determined". Summary figures at Collaborative Asteroid Lightcurve Link (CALL)

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 19763 Klimesh (2000 MC)" (2017-03-30 last obs.). Jet Propulsion Laboratory . Retrieved 27 June 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(19763) Klimesh". Dictionary of Minor Planet Names – (19763) Klimesh. Springer Berlin Heidelberg. p. 859. doi:10.1007/978-3-540-29925-7_9586. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 7 "LCDB Data for (19763) Klimesh". Asteroid Lightcurve Database (LCDB). Retrieved 17 May 2016.
    4. 1 2 "Asteroid 19763 Klimesh – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 27 October 2019.
    5. 1 2 3 4 Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv: 1606.08923 . Bibcode:2016AJ....152...63N. doi: 10.3847/0004-6256/152/3/63 .
    6. 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. S2CID   35447010 . Retrieved 17 May 2016.
    7. 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. S2CID   118745497 . Retrieved 3 December 2016.
    8. 1 2 3 4 Pravec, Petr; Harris, Alan W.; Kusnirák, Peter; Galád, Adrián; Hornoch, Kamil (September 2012). "Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations". Icarus. 221 (1): 365–387. Bibcode:2012Icar..221..365P. doi:10.1016/j.icarus.2012.07.026 . Retrieved 17 May 2016.
    9. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (19763) Klimesh". Geneva Observatory . Retrieved 17 May 2016.
    10. ↑ 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. S2CID   53493339 . Retrieved 17 May 2016.
    11. 1 2 "19763 Klimesh (2000 MC)". Minor Planet Center. Retrieved 25 January 2016.
    12. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 17 May 2016.
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