4997 Ksana

4997 Ksana
Discovery [1]
Discovered by L. G. Karachkina
Discovery site Crimean Astrophysical Obs.
Discovery date 6 October 1986
Designations
MPC designation 4997 Ksana
Named after
 Kseniya A. Nessler
(discoverer's friend)[2]
1986 TM
main-belt · (outer) [3]
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 29.24 yr (10,681 days)
Aphelion 3.8111 AU
Perihelion 1.9271 AU
2.8691 AU
Eccentricity 0.3283
4.86 yr (1,775 days)
16.786°
0° 12m 10.08s / day
Inclination 32.839°
10.897°
57.272°
Physical characteristics
Dimensions 7.36±2.79 km[4]
9.860±0.160 km[5][6]
9.97±0.33 km[7]
10±1 km[8]
14.64 km (calculated)[3]
3.4342±0.0003 h[9]
0.057 (assumed)[3]
0.16±0.03[8]
0.271±0.206[4]
0.312±0.022[7]
0.3157±0.0548[6]
0.316±0.055[5]
SMASS = B [1] · B [3]
11.9[3][6][7]
12.70[4][8]
12.79±0.30[10]
13.0[1]

    4997 Ksana, provisional designation 1986 TM, is a rare-type asteroid from the outer region of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 6 October 1986, by Russian astronomer Lyudmila Karachkina at Crimean Astrophysical Observatory on the Crimean peninsula.[11]

    The asteroid orbits the Sun at a distance of 1.9–3.8 AU once every 4 years and 10 months (1,775 days). Its orbit has an eccentricity of 0.33 and an inclination of 33° with respect to the ecliptic.[1] As no precoveries were taken, the asteroid's observation arc begins with its discovery observation in 1986.[11]

    On the SMASS taxonomic scheme, it has a B-type spectrum, which is typical for primitive, volatile-rich asteroids. According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the body measures between 7.36 and 10±1 kilometers in diameter and its surface has an albedo between 0.16 and 0.316,[4][5][6][7][8] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a larger diameter of 14.64 kilometers, based on an absolute magnitude of 12.9.[3]

    In February 2007, a rotational light-curve was obtained for this asteroid from photometric observations by Italian astronomer Federico Manzini at the SAS observatory in Novara, Italy. It gave it a rotation period of 3.4342±0.0003 hours with a brightness variation of 0.21 in magnitude (U=2).[9]

    The minor planet was named by the discoverer for Russian chemist Kseniya Andreevna Nessler, who has been an advocate against environmental pollution.[2] Naming citation was published on 1 September 1993 (M.P.C. 22505 and 22609).[12]

    References

    1. 1 2 3 4 5 "JPL Small-Body Database Browser: 4997 Ksana (1986 TM)" (2016-01-03 last obs.). Jet Propulsion Laboratory. Retrieved 30 October 2016.
    2. 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (4997) Ksana. Springer Berlin Heidelberg. p. 430. ISBN 978-3-540-00238-3. Retrieved 30 October 2016.
    3. 1 2 3 4 5 6 "LCDB Data for (4997) Ksana". Asteroid Lightcurve Database (LCDB). Retrieved 30 October 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 30 October 2016.
    5. 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:1109.4096Freely accessible. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 30 October 2016.
    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" (PDF). The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 30 October 2016.
    7. 1 2 3 4 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" (PDF). Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 30 October 2016.
    8. 1 2 3 4 Alí-Lagoa, V.; de León, J.; Licandro, J.; Delbó, M.; Campins, H.; Pinilla-Alonso, N.; et al. (June 2013). "Physical properties of B-type asteroids from WISE data". Astronomy and Astrophysics. 554: 16. arXiv:1303.5487Freely accessible. Bibcode:2013A&A...554A..71A. doi:10.1051/0004-6361/201220680. Retrieved 30 October 2016.
    9. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (4997) Ksana". Geneva Observatory. Retrieved 30 October 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:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 30 October 2016.
    11. 1 2 "4997 Ksana (1986 TM)". Minor Planet Center. Retrieved 30 October 2016.
    12. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 30 October 2016.

    External links

    This article is issued from Wikipedia - version of the 10/30/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.