2014 Vasilevskis

2014 Vasilevskis
Discovery [1]
Discovered by A. R. Klemola
Discovery site Lick Obs.
Discovery date 2 May 1973
Designations
MPC designation 2014 Vasilevskis
Named after
 Stanislavs Vasilevskis
(astronomer)[2]
1973 JA
main-belt · Phocaea [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 42.82 yr (15,641 days)
Aphelion 3.0901 AU
Perihelion 1.7120 AU
2.4011 AU
Eccentricity 0.2869
3.72 yr (1,359 days)
136.44°
0° 15m 53.64s / day
Inclination 21.375°
204.09°
82.932°
Earth MOID 0.8406 AU
Physical characteristics
Dimensions 11.84±0.81 km[4]
9.071±0.051 km[5]
9.61 km (calculated)[3]
32.16±0.02 h[6]
36.25 h[7]
39±2 h[8]
15.6±0.1 h[9]
0.265±0.038[4]
0.4513±0.1032[5]
0.23 (assumed)[3]
S [3]
12.3[1][3]
11.7[4][5]
12.76±1.16[10]

    2014 Vasilevskis, provisional designation 1973 JA, is a stony Phocaean asteroid from the inner regions of the asteroid belt, about 10 kilometers in diameter. It was discovered on 2 May 1973, by American astronomer Arnold Klemola at the U.S. Lick Observatory on Mount Hamilton, California.[11]

    The stony S-type asteroid is a member of the Phocaea family, a group of asteroids with similar orbital characteristics, named after the family's namesake, 25 Phocaea. It orbits the Sun at a distance of 1.7–3.1 AU once every 3 years and 9 months (1,359 days). Its orbit has a typically high eccentricity of 0.29 and an inclination of 21° with respect to the plane of the ecliptic.[1]

    In May 2014, a photometric light-curve analysis by Robert Stevens at the U.S. Center for Solar System Studies (CS3), California, rendered a rotation period of 32.16±0.02 hours with a brightness amplitude of 0.26 in magnitude (U=3-). Alternative measurements also made in 2014, include an observation by astronomer René Roy, which rendered a period of 39±2 hours with an amplitude of 0.31 in magnitude (U=2),[8] and an analysis at the U.S. Burleith Observatory in Washington DC, with a period of 15.6±0.1 hours, or 49% of the first period (U=2-).[9]

    According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 11.8 and 9.1 kilometers with a surface albedo of 0.265 and 0.451, respectively.[4][5] The Collaborative Asteroid Lightcurve Link (CALL) assumes an albedo 0.23, which is identical to the one for 25 Phocaea, and calculates a diameter of 9.6 kilometers.[3]

    The minor planet was named after astronomer Stanislavs Vasilevskis (d. 1988), long-time staff member at the discovering Lick Observatory from 1949 to 1974. A specialist for astrometric instrumentation, in particular the computational analysis of the position of astronomical objects from photographic plates, he has also performed broad astronomical surveys to obtain the parallax and proper motion of stars.[2]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 2014 Vasilevskis (1973 JA)" (2016-02-27 last obs.). Jet Propulsion Laboratory. Retrieved March 2016.
    2. 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (2014) Vasilevskis. Springer Berlin Heidelberg. p. 163. ISBN 978-3-540-00238-3. Retrieved March 2016.
    3. 1 2 3 4 5 6 "LCDB Data for (2014) Vasilevskis". Asteroid Lightcurve Database (LCDB). Retrieved March 2016.
    4. 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". Publications of the Astronomical Society of Japan 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved March 2016.
    5. 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 March 2016.
    6. ↑ Stephens, Robert D. (October 2014). "Asteroids Observed from CS3: 2014 April-June". The Minor Planet Bulletin 41 (4): 226–230. Bibcode:2014MPBu...41..226S. ISSN 1052-8091. Retrieved March 2016.
    7. ↑ Holliday, B. (December 1995). "Lightcurve Observations of Minor Planets 1508 Kemi and 2014 Vasilevskis". The Minor Planet Bulletin 22.: 43. Bibcode:1995MPBu...22...43H. Retrieved March 2016.
    8. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (2014) Vasilevskis". Geneva Observatory. Retrieved March 2016.
    9. 1 2 Schmidt, Richard E. (January 2015). "NIR Minor Planet Photometry from Burleith Observatory: 2014 February - June". The Minor Planet Bulletin 42 (1): 1–3. Bibcode:2015MPBu...42....1S. ISSN 1052-8091. Retrieved March 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:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved March 2016.
    11. ↑ "2014 Vasilevskis (1973 JA)". Minor Planet Center. Retrieved March 2016.

    External links


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