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1933 Tinchen

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1933 Tinchen
Lightcurve-based 3D-model of Tinchen
Discovery
Discovered byL. Kohoutek
Discovery siteBergedorf Obs.
Discovery date14 January 1972
Designations
MPC designation(1933) Tinchen
Named afterChristine Kohoutek
(wife of the discoverer)
Alternative designations1972 AC · 1956 TB
1956 VE · 1962 JF
1962 JS
Minor planet categorymain-belt · Vesta
Orbital characteristics
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc60.59 yr (22,131 days)
Aphelion2.6437 AU
Perihelion2.0617 AU
Semi-major axis2.3527 AU
Eccentricity0.1237
Orbital period (sidereal)3.61 yr (1,318 days)
Mean anomaly315.04°
Mean motion0° 16 23.16 / day
Inclination6.8822°
Longitude of ascending node164.93°
Argument of perihelion214.52°
Physical characteristics
Dimensions4.51±0.11 km
5.04 km (calculated)
6.454±0.041 km
Synodic rotation period3.67±0.07 h
3.6703±0.0006 h
3.671±0.005 h
3.672±0.003 h
Geometric albedo0.2950±0.0588
0.4 (assumed)
0.613±0.029
Spectral typeV
Absolute magnitude (H)12.769±0.003 (R) · 12.88 · 12.9 · 13.07±0.32 · 13.1

1933 Tinchen, provisional designation 1972 AC, is a Vestian asteroid from the inner regions of the asteroid belt, about 5 kilometers in diameter. It was discovered on 14 January 1972, by Czech astronomer Luboš Kohoutek at the Hamburger Bergedorf Observatory in Germany, who named it after his wife, Christine Kohoutek.

Classification and orbit

Tinchen orbits the Sun in the inner main-belt at a distance of 2.1–2.6 AU once every 3 years and 7 months (1,318 days). Its orbit has an eccentricity of 0.12 and an inclination of 7° with respect to the ecliptic.

The vestoid or V-type asteroid is also a member of the Vesta family. Asteroids with these spectral and orbital characteristics are thought to have all originated from the Rheasilvia crater, a large impact crater on the south-polar surface of 4 Vesta, which is the main-belt's second-most-massive asteroid after 1 Ceres.

Physical characteristics

Tinchen has a rotation period of 3.671 hours.

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Tinchen measures between 4.51 and 6.454 kilometers in diameter and its surface has an albedo between 0.2950 and 0.613. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for Vestian asteroids of 0.40 and calculates a diameter of 5.04 kilometers with an absolute magnitude of 13.1.

Naming

The discoverer named this minor planet after his wife, Christine Kohoutek. The official naming citation was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3938).

Notes

  1. ^ Ryan 2007 (web) figures at LCDB for results of LCDB – 1933 Tinchen

References

  1. ^ "JPL Small-Body Database Browser: 1933 Tinchen (1972 AC)" (2017-05-05 last obs.). Jet Propulsion Laboratory. Retrieved 10 June 2017.
  2. ^ Schmadel, Lutz D. (2007). "(1933) Tinchen". Dictionary of Minor Planet Names – (1933) Tinchen. Springer Berlin Heidelberg. p. 155. doi:10.1007/978-3-540-29925-7_1934. ISBN 978-3-540-00238-3.
  3. ^ "LCDB Data for (1933) Tinchen". Asteroid Lightcurve Database (LCDB). Retrieved 9 December 2016.
  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 9 December 2016.
  5. ^ 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.
  6. ^ Behrend, Raoul. "Asteroids and comets rotation curves – (1933) Tinchen". Geneva Observatory. Retrieved 9 December 2016.
  7. ^ 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:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 9 December 2016.
  8. Hasegawa, Sunao; Miyasaka, Seidai; Mito, Hiroyuki; Sarugaku, Yuki; Ozawa, Tomohiko; Kuroda, Daisuke; et al. (June 2014). "Lightcurve survey of V-type asteroids in the inner asteroid belt". Publications of the Astronomical Society of Japan. 66 (3): 5415. arXiv:1311.4653. Bibcode:2014PASJ...66...54H. doi:10.1093/pasj/psu040. Retrieved 9 December 2016.
  9. 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 9 December 2016.
  10. "1933 Tinchen (1972 AC)". Minor Planet Center. Retrieved 9 December 2016.
  11. Schmadel, Lutz D. (2009). "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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