1030 Vitja

1030 Vitja, provisional designation 1924 RQ, is a dark background asteroid from the outer regions of the asteroid belt, approximately 60 kilometers (37 miles) in diameter. It was discovered on 25 May 1924, by Soviet–Russian astronomer Vladimir Albitsky at the Simeiz Observatory on the Crimean peninsula.[1] The asteroid was named in honor of Viktor Zaslavskij (1925–1944), a relative of the discoverer.[2]

1030 Vitja
Modelled shape of Vitja from its lightcurve
Discovery[1]
Discovered byV. Albitzkij
Discovery siteSimeiz Obs.
Discovery date25 May 1924
Designations
(1030) Vitja
Named after
Viktor Zaslavskij[2]
(discoverer's relative)
1924 RQ · 1961 AF
1964 TB
main-belt[1][3] · (outer)[4]
background[5]
Orbital characteristics[3]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc93.01 yr (33,972 d)
Aphelion3.5067 AU
Perihelion2.7357 AU
3.1212 AU
Eccentricity0.1235
5.51 yr (2,014 d)
38.994°
0° 10m 43.32s / day
Inclination14.780°
187.86°
6.2246°
Physical characteristics
Mean diameter
52.72±14.29 km[6]
58.38±0.79 km[7]
59.717±0.226 km[8]
64.13±2.0 km[9]
65.94±0.68 km[10]
69.139±1.074 km[11]
5.7014±0.0003 h[12]
6.332±0.001 h[13]
0.0280±0.0121[11]
0.031±0.005[10]
0.0326±0.002[9]
0.040±0.001[7]
0.05±0.06[6]
P[11] · C[14]
C (assumed)[4]
10.14±0.24[14]
10.30[3][4][7][9][10][11]
10.37[6]

    Orbit and classification

    Vitja is a non-family asteroid from the main belt's background population.[5] It orbits the Sun in the outer asteroid belt at a distance of 2.7–3.5 AU once every 5 years and 6 months (2,014 days; semi-major axis of 3.12 AU). Its orbit has an eccentricity of 0.12 and an inclination of 15° with respect to the ecliptic.[3] The asteroid's first recorded observation was made a week after its official discovery at Heidelberg Observatory in June 1924, while its observation arc begins more than seven years later at Lowell Observatory in October 1931.[1]

    Naming

    This minor planet was named by the discoverer after his relative Viktor "Vitja" Viktorovich Zaslavskij (1925–1944), who died during World War II. He was the nephew of Spiridon Zaslavskij, the brother-in-law of the discoverer, after whom the asteroid 1330 Spiridonia was later named.[2] No accurate naming citation was given for this asteroid in The Names of the Minor Planets. The author of the Dictionary of Minor Planets, Lutz Schmadel, researched the naming circumstances himself (LDS).[2][15]

    Physical characteristics

    Vitja has been characterized as a primitive P-type and carbonaceous C-type asteroid by the Wide-field Infrared Survey Explorer (WISE) and Pan-STARRS photometric survey, respectively.[11][14] The Collaborative Asteroid Lightcurve Link (CALL) assumes it to be a very dark C-type asteroid.[4]

    Rotation period

    In July 2007, a rotational lightcurve of Vitja was obtained from photometric observations by French amateur astronomer René Roy. Lightcurve analysis gave a rotation period of 5.7014 hours and a brightness variation of 0.18 magnitude (U=3-).[12] Another observation by Andrea Ferrero at the Bigmuskie Observatory (B88) in Italy showed a period of 6.332 with an amplitude of 0.21 (U=2).[13]

    Diameter and albedo

    According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's WISE telescope, Vitja measures between 52.72 and 69.139 kilometers (32.759 and 42.961 mi) in diameter and its surface has an albedo between 0.0280 and 0.05.[6][7][8][9][10][11]

    CALL adopts the results obtained by IRAS, that is, an albedo of 0.0326 and a diameter of 64.13 kilometers (39.85 mi) based on an absolute magnitude of 10.3.[4]

    Between 2007 and 2021, 1030 Vitja has been observed to occult four stars.

    References
    1. "1030 Vitja (1924 RQ)". Minor Planet Center. Retrieved 19 March 2018.
    2. Schmadel, Lutz D. (2007). "(1030) Vitja". Dictionary of Minor Planet Names – (1030) Vitja. Springer Berlin Heidelberg. p. 88. doi:10.1007/978-3-540-29925-7_1031. ISBN 978-3-540-00238-3.
    3. "JPL Small-Body Database Browser: 1030 Vitja (1924 RQ)" (2017-06-05 last obs.). Jet Propulsion Laboratory. Retrieved 19 March 2018.
    4. "LCDB Data for (1030) Vitja". Asteroid Lightcurve Database (LCDB). Retrieved 19 March 2018.
    5. "Asteroid 1030 Vitja – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 24 October 2019.
    6. Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv:1606.08923. Bibcode:2016AJ....152...63N. doi:10.3847/0004-6256/152/3/63. S2CID 119289027. Retrieved 19 March 2018.
    7. 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. (online, AcuA catalog p. 153)
    8. Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. S2CID 119293330.
    9. Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 22 October 2019.
    10. Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. S2CID 46350317. Retrieved 19 March 2018.
    11. 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 118700974.
    12. Behrend, Raoul. "Asteroids and comets rotation curves – (1030) Vitja". Geneva Observatory. Retrieved 19 March 2018.
    13. Ferrero, Andrea (January 2014). "Period Determination of Four Main-belt Asteroids in Mid-2013". The Minor Planet Bulletin. 41 (1): 24–25. Bibcode:2014MPBu...41...24F. ISSN 1052-8091. Retrieved 19 March 2018.
    14. 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. Retrieved 19 March 2018.
    15. Schmadel, Lutz D. (1997). Dictionary of Minor Planet Names – Introduction, Source of Information. Springer Berlin Heidelberg. p. 16. ISBN 978-3-662-06617-1.
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