5101 Akhmerov

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5101 Akhmerov
Discovery  [1]
Discovered by L. V. Zhuravleva
Discovery site Crimean Astrophysical Obs.
Discovery date22 October 1985
Designations
(5101) Akhmerov
Named after
Vadim Akhmerov
(Ukrainian surgeon) [2]
1985 UB5 ·1969 TQ
main-belt  · Eos   [3]
Orbital characteristics   [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 47.37 yr (17,303 days)
Aphelion 3.3535 AU
Perihelion 2.6561 AU
3.0048 AU
Eccentricity 0.1160
5.21 yr (1,903 days)
60.772°
0° 11m 21.12s / day
Inclination 10.699°
205.91°
174.12°
Physical characteristics
Dimensions11.012±0.228 km [4] [5]
12.32 km (calculated) [3]
4.2705±0.0010 h [6]
0.14 (assumed) [3]
0.192±0.036 [4] [5]
CX  [7]  · S   [3]
12.2 [4]  ·12.3 [1] [3]  ·12.36±0.41 [7]  ·12.925±0.003(S) [6]

    5101 Akhmerov, provisional designation 1985 UB5, is an Eos asteroid from the outer region of the asteroid belt, about 12 kilometers in diameter. It was discovered on 22 October 1985, by Russian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. [8] It was later named for Ukrainian surgeon Vadim Akhmerov. [2]

    Contents

    Orbit and classification

    Akhmerov is a member of the Eos family ( 606 ), the largest asteroid family in the outer main belt consisting of nearly 10,000 asteroids.

    It orbits the Sun at a distance of 2.7–3.4  AU once every 5 years and 3 months (1,903 days). Its orbit has an eccentricity of 0.12 and an inclination of 11° with respect to the ecliptic. [1] A first precovery was obtained at the discovering observatory in 1969, extending the body's observation arc by 16 years prior to its official discovery observation. [8]

    Physical characteristics

    PanSTARRS photometric survey has characterized Akhmerov as a CX-type asteroid, a transitional group between the carbonaceous C-type asteroid and the metallic X-type asteroids. [3] [7]

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Akhmerov measures 11.0 kilometers in diameter and its surface has an albedo of 0.19. [4] [5] The Collaborative Asteroid Lightcurve Link (CALL) assumes an albedo of 0.14 – derived from 221 Eos, the largest member and namesake of this orbital family – and calculates a diameter of 12.3 kilometers with an absolute magnitude of 12.3. [3]

    Rotation period

    A rotational lightcurve of Akhmerov was obtained from photometric observations taken at the U.S. Palomar Transient Factory in September 2011. The lightcurve gave a rotation period of 4.2705±0.0010 hours with a brightness amplitude of 0.33 in magnitude ( U=2 ). [6]

    Naming

    This minor planet was named after Vadim Zinov'evich Akhmerov (born 1929), long-time physician at the maternity hospital in Alushta on the Crimean peninsula. [2] The official naming citation was published by the Minor Planet Center on 4 May 1999 ( M.P.C. 34620). [9]

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    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 5101 Akhmerov (1985 UB5)" (2017-02-20 last obs.). Jet Propulsion Laboratory . Retrieved 20 June 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(5101) Akhmerov". Dictionary of Minor Planet Names – (5101) Akhmerov. Springer Berlin Heidelberg. p. 439. doi:10.1007/978-3-540-29925-7_4958. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 7 "LCDB Data for (5101) Akhmerov". Asteroid Lightcurve Database (LCDB). Retrieved 3 May 2016.
    4. 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 . Retrieved 3 May 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: 1109.4096 . Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68 . Retrieved 5 December 2016.
    6. 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 . Retrieved 3 May 2016.
    7. 1 2 3 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 3 May 2016.
    8. 1 2 "5101 Akhmerov (1985 UB5)". Minor Planet Center. Retrieved 3 May 2016.
    9. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 3 May 2016.
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