5101 Akhmerov

5101 Akhmerov
Discovery [1]
Discovered by L. V. Zhuravleva
Discovery site CrAO – Nauchnyj
Discovery date 22 October 1985
Designations
MPC designation 5101 Akhmerov
Named after
 Vadim Akhmerov
(surgeon)[2]
1985 UB5 · 1969 TQ
main-belt · Eos [3]
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 45.77 yr (16,719 days)
Aphelion 3.3547 AU
Perihelion 2.6564 AU
3.0056 AU
Eccentricity 0.1162
5.21 yr (1,903 days)
344.9908°
0° 11m 21.12s / day
Inclination 10.698°
205.9071°
174.2405°
Physical characteristics
Dimensions 11.012±0.228 km[4]
12.32 km (calculated)[3]
4.2705±0.0010 h[5]
0.1920±0.0355[4]
0.14 (assumed)[3]
CX [6] · S [3]
12.3[1][3]
12.36±0.41[6]
12.2[4]
12.925±0.003 (S)[5]

    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 female astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula.[7]

    The asteroid is a member of the Eos family, an orbital group of more than 4,000 asteroids, which are well known for mostly being of stony composition with a relatively high albedo. 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 plane of the ecliptic.[1] The first precovery was obtained at the discovering observatory in 1969, extending the asteroid's observation arc by 16 years prior to its discovery.[7]

    According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, the asteroid measures 11.0 kilometers in diameter and its surface has an albedo of 0.19.[4] The Collaborative Asteroid Lightcurve Link (CALL) assumes an albedo of 0.14 – which derives from 221 Eos, the largest member and namesake of this orbital family – and calculates a diameter of 12.3 kilometers.[3] While CALL classifies it as a stony S-type asteroid, the large-scale survey by Pan-STARRS rates it a CX class body, a transitional type between the carbonaceous C-type and the metallic X-type asteroids.[3][6]

    A rotational light-curve of this asteroid was obtained from photometric observations taken at the U.S. Palomar Transient Factory in September 2011. The light-curve gave a rotation period of 4.2705±0.0010 hours with a brightness amplitude of 0.33 in magnitude (U=2).[5]

    The minor planet was named after Vadim Zinov'evich Akhmerov (b. 1929), long-time physician at the maternity hospital in Alushta on the Crimean peninsula.[2] Naming citation was published on 4 May 1999 (M.P.C. 34620).[8]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 5101 Akhmerov (1985 UB5)" (2015-07-17 last obs.). Jet Propulsion Laboratory. Retrieved 3 May 2016.
    2. 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (5101) Akhmerov. Springer Berlin Heidelberg. p. 439. ISBN 978-3-540-00238-3. Retrieved 3 May 2016.
    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:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 3 May 2016.
    5. 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:1504.04041Freely accessible. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 3 May 2016.
    6. 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:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 3 May 2016.
    7. 1 2 "5101 Akhmerov (1985 UB5)". Minor Planet Center. Retrieved 3 May 2016.
    8. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 3 May 2016.

    External links

    This article is issued from Wikipedia - version of the 9/23/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.