2008 Konstitutsiya

2008 Konstitutsiya, provisionally designated 1973 SV4, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 50 kilometers in diameter. It was discovered on 27 September 1973, by Soviet astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula.[11] The asteroid was named for the 1977 Soviet Constitution.[2]

2008 Konstitutsiya
Discovery [1]
Discovered byL. Chernykh
Discovery siteCrimean Astrophysical Obs.
Discovery date27 September 1973
Designations
(2008) Konstitutsiya
Named after
1977 Soviet Constitution [2]
1973 SV4 · 1938 SV
1950 VG · 1953 EH
1953 FE · 1967 RY
1973 UE · 1976 ED
main-belt · (outer) [1]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc49.63 yr (18,127 days)
Aphelion3.5286 AU
Perihelion2.8995 AU
3.2141 AU
Eccentricity0.0979
5.76 yr (2,105 days)
35.505°
0° 10m 15.6s / day
Inclination20.667°
15.619°
201.79°
Physical characteristics
Dimensions45.46±19.42 km[3]
50.07±0.66 km[4]
50.31 km (derived)[5]
51.37±0.80 km[6]
52.023±0.135 km[7]
53.942±0.281 km[8]
11.2692±0.0004 h[9]
11.279±0.009 h[10]
0.0505±0.0080[8]
0.056±0.002[6]
0.0580 (derived)[5]
0.06±0.06[3]
0.070±0.010[4][7]
C [5]
10.00[4] · 10.2[1][5][6][8] · 10.32[3]

    Classification and orbit

    Konstitutsiya orbits the Sun in the outer main-belt at a distance of 2.9–3.5 AU once every 5 years and 9 months (2,105 days). Its orbit has an eccentricity of 0.10 and an inclination of 21° with respect to the ecliptic.[1] In September 1938, the asteroid was first identified as 1938 SV at Turku Observatory, Finland, extending the body's observation arc by 35 years prior to its official discovery observation at Nauchnyj.[11]

    Physical characteristics

    Konstitutsiya is an assumed C-type asteroid.[5]

    Lightcurves

    Two rotational lightcurves of Konstitutsiya were obtained from photometric observations in 2011. Lightcurve analysis gave a rotation period of 11.2692 and 11.279 hours with a low brightness variation of 0.08 and 0.06 magnitude, respectively (U=3/3-).[9][10] A low brightness amplitude suggests that the body has a nearly spheroidal shape.

    Diameter and albedo

    According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Konstitutsiya measures between 45.46 and 53.942 kilometers in diameter and its surface has an albedo between 0.0505 and 0.070.[3][4][6][7][8] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0580 and a diameter of 50.31 kilometers based on an absolute magnitude of 10.2.[5]

    Naming

    This minor planet was named on the occasion of the adoption of the new 1977 Soviet Constitution, also known as Brezhnev Constitution.[2] It was the third and last Soviet Constitution ever to be adopted. The official naming citation was published by the Minor Planet Center on 1 September 1978 (M.P.C. 4481).[12]

    References
    1. "JPL Small-Body Database Browser: 2008 Konstitutsiya (1973 SV4)" (2017-04-28 last obs.). Jet Propulsion Laboratory. Retrieved 30 June 2017.
    2. Schmadel, Lutz D. (2007). "(2008) Konstitutsiya". Dictionary of Minor Planet Names – (2008) Konstitutsiya. Springer Berlin Heidelberg. p. 163. doi:10.1007/978-3-540-29925-7_2009. ISBN 978-3-540-00238-3.
    3. 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. Retrieved 30 June 2017.
    4. 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. Retrieved 30 June 2017.
    5. "LCDB Data for (2008) Konstitutsiya". Asteroid Lightcurve Database (LCDB). Retrieved 30 June 2017.
    6. 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 17 October 2019. (online, AcuA catalog p. 153)
    7. 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. Retrieved 30 June 2017.
    8. 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.
    9. Oey, Julian; Colazo, Carlos; Mazzone, Fernando; Chapman, Andrés (January 2012). "The Lightcurve Analysis of 918 Itha and 2008 Konstitutsiya". The Minor Planet Bulletin. 39 (1): 1–2. Bibcode:2012MPBu...39....1O. ISSN 1052-8091. Retrieved 30 June 2017.
    10. Ditteon, Richard; Horn, Lauren; Kamperman, Amy; Vorjohan, Bradley; Kirkpatrick, Elaine (January 2012). "Asteroid Lightcurve Analysis at the Oakley Souther Sky Observatory: 2011 April-May". The Minor Planet Bulletin. 39 (1): 26–28. Bibcode:2012MPBu...39...26D. ISSN 1052-8091. Retrieved 30 June 2017.
    11. "2008 Konstitutsiya (1973 SV4)". Minor Planet Center. Retrieved 30 June 2017.
    12. Schmadel, Lutz D. "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. doi:10.1007/978-3-642-01965-4. ISBN 978-3-642-01964-7.

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