9916 Kibirev

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9916 Kibirev
Discovery  [1]
Discovered by N. Chernykh
Discovery site Crimean Astrophysical Obs.
Discovery date3 October 1978
Designations
(9916) Kibirev
Named after
 Sergej Kibirev   [1]
(Russian informatician)
1978 TR2 ·1983 VL1
main-belt   [1] [2]  ·(outer)
Koronis   [3] [4]
Orbital characteristics   [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc 44.52 yr (16,261 d)
Aphelion 3.0950 AU
Perihelion 2.6050 AU
2.8500 AU
Eccentricity 0.0860
4.81 yr (1,757 d)
83.251°
0° 12m 17.28s / day
Inclination 1.0178°
288.18°
79.224°
Physical characteristics
Mean diameter
5.49 km(calculated) [4]
6.201±0.050  km [5] [6]
15.171±0.3802  h [7]
15.48±0.250 h [8]
0.24(assumed) [4]
0.260±0.034 [5]
0.2898±0.0435 [6]
S (assumed) [4]
13.0 [6]
13.018±0.002(R) [7]
13.160±0.170(R) [8]
13.2 [2]
13.37±0.30 [9]
13.47 [4]

    9916 Kibirev, provisional designation 1978 TR2, is a Koronian asteroid from the outer regions of the asteroid belt, approximately 6 kilometers (3.7 miles) in diameter. It was discovered on 3 October 1978, by astronomer Nikolai Chernykh at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. The likely S-type asteroid has a rotation period of about 15.2 hours and was named after Russian informatician Sergej Kibirev. [1] [4]

    Contents

    Orbit and classification

    Orbit of Kibirev (blue) with the inner planets and Jupiter in red AnimatedOrbitOf9916Kibirev.gif
    Orbit of Kibirev (blue) with the inner planets and Jupiter in red

    Kibirev is a core member of the Koronis family ( 605 ), [4] [3] a very large outer asteroid family with nearly co-planar ecliptical orbits. [10] It orbits the Sun in the outer main-belt at a distance of 2.6–3.1  AU once every 4 years and 10 months (1,757 days; semi-major axis of 2.85 AU). Its orbit has an eccentricity of 0.09 and an inclination of 1° with respect to the ecliptic. [2] The body's observation arc begins with a precovery taken at Palomar Observatory in September 1973, or 5 years prior to its official discovery observation. [1]

    Physical characteristics

    Kibirev is an assumed S-type asteroid, [4] which is also the Koronis family's overall spectral type. [10] : 23 

    Rotation period

    In 2014, two rotational lightcurves of Kibirev were obtained from photometric observations in the R-band by astronomers at the Palomar Transient Factory in California. [7] [8] Lightcurve analysis gave a rotation period of 15.171 and 15.48 hours with a brightness amplitude of 0.36 and 0.45 magnitude, respectively ( U=2/2 ). [4]

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Kibirev measures 6.201 kilometers in diameter and its surface has an albedo between 0.260 and 0.2898. [5] [6]

    The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 and calculates a diameter of 5.49 kilometers based on an absolute magnitude of 13.47. [4]

    Naming

    This minor planet was named after Russian Sergej Feodosievich Kibirev (born 1950), who works on new methods to process information and organizes the production of microelectronics in the Russian city of Novosibirsk. [1] The official naming citation was published by the Minor Planet Center on 9 March 2001 ( M.P.C. 42359). [11]

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    References

    1. 1 2 3 4 5 6 "9916 Kibirev (1978 TR2)". Minor Planet Center. Retrieved 2 May 2018.
    2. 1 2 3 4 "JPL Small-Body Database Browser: 9916 Kibirev (1978 TR2)" (2018-03-28 last obs.). Jet Propulsion Laboratory . Retrieved 2 May 2018.
    3. 1 2 "Asteroid 9916 Kibirev – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 27 October 2019.
    4. 1 2 3 4 5 6 7 8 9 10 "LCDB Data for (9916) Kibirev". Asteroid Lightcurve Database (LCDB). Retrieved 2 May 2018.
    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: 1109.4096 . Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. S2CID   118745497.
    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. (catalog)
    7. 1 2 3 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. S2CID   8342929.
    8. 1 2 3 Chang, Chan-Kao; Ip, Wing-Huen; Lin, Hsing-Wen; Cheng, Yu-Chi; Ngeow, Chow-Choong; Yang, Ting-Chang; et al. (August 2015). "Asteroid Spin-rate Study Using the Intermediate Palomar Transient Factory". The Astrophysical Journal Supplement Series. 219 (2): 19. arXiv: 1506.08493 . Bibcode:2015ApJS..219...27C. doi:10.1088/0067-0049/219/2/27. S2CID   17093124.
    9. ↑ 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.
    10. 1 2 Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. arXiv: 1502.01628 . Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN   9780816532131. S2CID   119280014.
    11. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 2 May 2018.
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