1799 Koussevitzky

1799 Koussevitzky (prov. designation: 1950 OE) is an asteroid of the Eos family from the outer regions of the asteroid belt, approximately 18 kilometers (11 miles) in diameter. It was discovered on 25 July 1950, by astronomers at Indiana University during the Indiana Asteroid Program at Goethe Link Observatory in Indiana, United States.[1] The K-type asteroid has a rotation period of 6.3 hours.[12] It was named for Russian conductor Serge Koussevitzky.[2]

1799 Koussevitzky
Koussevitzky modeled from its lightcurve
Discovery [1]
Discovered byIndiana University
(Indiana Asteroid Program)
Discovery siteGoethe Link Obs.
Discovery date25 July 1950
Designations
(1799) Koussevitzky
Named after
Serge Koussevitzky [2]
(Russian conductor)
1950 OE · 1929 QD
1974 CF1
main-belt [1][3] · (outer)
Eos [4][5] · background [4]
Orbital characteristics [3]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 0
Observation arc68.24 yr (24,926 d)
Aphelion3.3845 AU
Perihelion2.6690 AU
3.0267 AU
Eccentricity0.1182
5.27 yr (1,923 d)
359.04°
0° 11m 13.92s / day
Inclination11.489°
156.61°
193.02°
Physical characteristics
Mean diameter
17.88±1.23 km[6]
18.196±0.156 km[7][8]
19.067±0.298 km[9]
23.26±2.4 km[10]
6.318±0.005 h[11][lower-alpha 1]
0.1426[10]
0.2128[9]
0.233[7][8]
0.241[6]
SMASS = K [3][12] · L [13]
10.90[6][7][9][10]
11.3[1][3][12]
11.59±0.29[13]

    Orbit and classification

    According to several HCM-analyses by Zappalà, Mothé-Diniz, as well as Milani and Knežević, Koussevitzky is a core member the Eos family (606),[5] the largest asteroid family of the outer main belt consisting of nearly 10,000 asteroids.[12] However, in a more recent HCM-analysis by Nesvorný, Koussevitzky is a non-family asteroid from the main belt's background population.[4]

    It orbits the Sun in the outer asteroid belt at a distance of 2.7–3.4 AU once every 5 years and 3 months (1,923 days; semi-major axis of 3.03 AU). Its orbit has an eccentricity of 0.12 and an inclination of 11° with respect to the ecliptic.[3] The asteroid was first observed as 1929 QD at Simeiz Observatory in August 1929. The body's observation arc begins with its official discovery observation at Goethe Link in July 1950.[1]

    Naming

    This minor planet was named in memory of Russian-born Serge Koussevitzky (1874–1951), long-time music director and conductor of the Boston Symphony Orchestra. The asteroid's name was proposed by astronomer Frank K. Edmondson of Indiana University on the occasion of Serge Koussevitzky's centenary of the birth on 26 July 1974.[2] The official naming citation was published by the Minor Planet Center on 1 January 1974 (M.P.C. 3569).[14]

    Physical characteristics

    In the SMASS classification, Koussevitzky is a stony K-type asteroid, typical for members of the Eos family.[3] The asteroid has also been characterized as an L-type by Pan-STARRS.[12][13]

    Rotation period

    In June 2013, a rotational lightcurve of Koussevitzky was obtained from photometric observations by Brian Warner at the Palmer Divide Station (U82) in California. Lightcurve analysis gave a well-defined rotation period of 6.318±0.005 hours with a brightness variation of 0.40 magnitude (U=3).[11][lower-alpha 1] Alternative period determinations of 6.325, 6.328 and 6.329 hours were made by astronomers at the University of Iowa using its Rigel Telescope at the Iowa Robotic Observatory (857) in Arizona, by French amateur astronomer René Roy, and by staff members of the Palomar Transient Factory in California, respectively (U=x2/3-/2).[15][16][17]

    Diameter and albedo

    According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Koussevitzky measures between 17.88 and 23.26 kilometers in diameter and its surface has an albedo between 0.1426 and 0.241.[6][7][8][9][10] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1506 and a diameter of 18.82 kilometers based on an absolute magnitude of 11.3.[12]

    Notes
    1. Lightcurve plot of (1799) Koussevitzky, B. Warner, June 2013, rotation period 6.318±0.005 hours with a brightness amplitude of 0.4 mag. Quality code is 3 (at CS3). Summary figures at the LCDB and CS3.

    References
    1. "1799 Koussevitzky (1950 OE)". Minor Planet Center. Retrieved 10 December 2018.
    2. Schmadel, Lutz D. (2007). "(1799) Koussevitzky". Dictionary of Minor Planet Names – (1799) Koussevitzky. Springer Berlin Heidelberg. p. 144. doi:10.1007/978-3-540-29925-7_1800. ISBN 978-3-540-00238-3.
    3. "JPL Small-Body Database Browser: 1799 Koussevitzky (1950 OE)" (2018-10-22 last obs.). Jet Propulsion Laboratory. Retrieved 10 December 2018.
    4. "Asteroid 1799 Koussevitzky". Small Bodies Data Ferret. Retrieved 10 December 2018.
    5. "Asteroid (1799) Koussevitzky – Proper elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 4 December 2018.
    6. Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 10 December 2018. (online, AcuA catalog p. 153)
    7. Mainzer, A. K.; Bauer, J. M.; Cutri, R. M.; Grav, T.; Kramer, E. A.; Masiero, J. R.; et al. (June 2016). "NEOWISE Diameters and Albedos V1.0". NASA Planetary Data System: EAR–A–COMPIL–5–NEOWISEDIAM–V1.0. Bibcode:2016PDSS..247.....M. Retrieved 10 December 2018.
    8. 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.
    9. 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. (catalog)
    10. Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System – IRAS-A-FPA-3-RDR-IMPS-V6.0: IRAS–A–FPA–3–RDR–IMPS–V6.0. Bibcode:2004PDSS...12.....T. Retrieved 10 December 2018.
    11. Warner, Brian D. (January 2014). "Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2013 June- September". The Minor Planet Bulletin. 41 (1): 27–32. Bibcode:2014MPBu...41...27W. ISSN 1052-8091.
    12. "LCDB Data for (1799) Koussevitzky". Asteroid Lightcurve Database (LCDB). Retrieved 10 December 2018.
    13. 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.
    14. Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. doi:10.1007/978-3-642-01965-4. ISBN 978-3-642-01964-7.
    15. Ivarsen, Kevin; Willis, Sarah; Ingleby, Laura; Matthews, Dan; Simet, Melanie (June 2004). "CCD observations and period determination of fifteen minor planets". The Minor Planet Bulletin. 31 (2): 29–33. Bibcode:2004MPBu...31...29I. ISSN 1052-8091.
    16. Behrend, Raoul. "Asteroids and comets rotation curves – (1799) Koussevitzky". Geneva Observatory. Retrieved 10 December 2018.
    17. 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.

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