15258 Alfilipenko

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15258 Alfilipenko
Discovery [1]
Discovered by L. V. Zhuravleva
Discovery site Crimean Astrophysical Obs.
Discovery date 15 September 1990
MPC designation (15258) Alfilipenko
Named after
Aleksandr Filipenko
(Russian civil engineer)[2]
1990 RN17 · 1998 BJ11
main-belt · (outer)[1]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 26.63 yr (9,726 days)
Aphelion 3.7790 AU
Perihelion 2.7040 AU
3.2415 AU
Eccentricity 0.1658
5.84 yr (2,132 days)
0° 10m 8.04s / day
Inclination 6.7272°
Physical characteristics
Dimensions 11.29 km (calculated)[3]
12.059±0.379 km[4][5]
4.3655±0.0016 h[6]
0.057 (assumed)[3]
12.74±0.59[7] · 12.9[4] · 13.014±0.002 (R)[6] · 13.1[1] · 13.46[3]

15258 Alfilipenko, provisional designation 1990 RN17, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 15 September 1990, by Russian–Ukraininan astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory, Nauchnyj, on the Crimean peninsula.[8] The asteroid was named after Russian civil engineer Aleksandr Filipenko.[2]

Orbit and classification[edit]

Alfilipenko orbits the Sun in the outer main-belt at a distance of 2.7–3.8 AU once every 5 years and 10 months (2,132 days). Its orbit has an eccentricity of 0.17 and an inclination of 7° with respect to the ecliptic.[1] No precoveries were taken. The asteroid's observation arc begins with its official discovery observation.[8]

Physical characteristics[edit]


A rotational lightcurve of Alfilipenko was obtained from photometric observations made at the U.S. Palomar Transient Factory in October 2013. Lightcurve analysis gave a rotation period of 4.3655 hours with a brightness variation of 0.11 magnitude (U=2).[6]

Diameter and albedo[edit]

According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Alfilipenko measures 12.1 kilometers in diameter and its surface has an albedo of 0.084,[4] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 11.3 kilometers with an absolute magnitude of 13.46.[3]


This minor planet was named in honour of Russian civil engineer Aleksandr Vasil'evich Filipenko (born 1950) from Khanty-Mansiysk, Siberia. He is the chairman of a charitable foundation for the memory of Alexander Danilovich Menshikov (1673–1729), after whom the minor planet 3889 Menshikov is named.[2] The official naming citation was published by the Minor Planet Center on 13 July 2004 (M.P.C. 52323).[9]


  1. ^ a b c d e "JPL Small-Body Database Browser: 15258 Alfilipenko (1990 RN17)" (2017-05-02 last obs.). Jet Propulsion Laboratory. Retrieved 26 June 2017. 
  2. ^ a b c Schmadel, Lutz D. (2006). Dictionary of Minor Planet Names – (15258) Alfilipenko, Addendum to Fifth Edition: 2003–2005. Springer Berlin Heidelberg. p. 91. ISBN 978-3-540-34360-8. Retrieved 11 May 2016. 
  3. ^ a b c d e "LCDB Data for (15258) Alfilipenko". Asteroid Lightcurve Database (LCDB). Retrieved 11 May 2016. 
  4. ^ a b c d 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 11 May 2016. 
  5. ^ a b 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 3 December 2016. 
  6. ^ a b c 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 11 May 2016. 
  7. ^ 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 11 May 2016. 
  8. ^ a b "15258 Alfilipenko (1990 RN17)". Minor Planet Center. Retrieved 11 May 2016. 
  9. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 11 May 2016. 

External links[edit]