1933 Tinchen

1933 Tinchen

A three-dimensional model of 1933 Tinchen based on its light-curve
Discovery [1]
Discovered by L. Kohoutek
Discovery site Bergedorf Obs.
Discovery date 14 January 1972
Designations
MPC designation 1933 Tinchen
Named after
 Christine Kohoutek
(wife of the discoverer)[2]
1972 AC · 1956 TB
1956 VE · 1962 JF
1962 JS
main-belt · Vesta [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 59.46 yr (21718 days)
Aphelion 2.6433 AU (395.43 Gm)
Perihelion 2.0646 AU (308.86 Gm)
2.3539 AU (352.14 Gm)
Eccentricity 0.12291
3.61 yr (1319.1 d)
151.27°
0° 16m 22.44s / day
Inclination 6.8820°
164.93°
214.44°
Earth MOID 1.06816 AU (159.794 Gm)
Jupiter MOID 2.81852 AU (421.645 Gm)
Jupiter Tisserand parameter 3.536
Physical characteristics
Dimensions 6.454±0.041 km[4]
4.51±0.11 km[5]
5.28 km (calculated)[3]
3.671±0.001 h[lower-alpha 1]
3.67±0.07 h[6]
3.672±0.001 h[lower-alpha 1]
3.6703±0.0006 h[7]
3.671 h (0.1530 d)[1]
0.2950±0.0588[4]
0.613±0.029[5]
0.4 (assumed)[3]
V [3]
13.0

    1933 Tinchen, provisional designation 1972 AC, is a vestoid asteroid from the inner regions of the asteroid belt, about 5 kilometers in diameter. It was discovered by Czech astronomer Luboš Kohoutek at the Hamburger Bergedorf Observatory, Germany on 14 January 1972.[8] It orbits the Sun at a distance of 2.1–2.6 AU once every 3 years and 7 months (1,319 days).[1]

    The vestoid or V-type asteroid is also a member of the Vesta family, having a semi-major axis of 2.35, an eccentricity of 0.12, and an inclination of 6.9 degrees. 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. Tinchen has a rotation period of 3.671 hours.[lower-alpha 1][6][7] Its assumed high geometric albedo of 0.4 is based on observational data in the range of 0.30–0.61.[4][5]

    The discoverer named the asteroid after his wife, Christine Kohoutek.[2]

    References

    1. 1 2 3 Figures at LCDB – 1933 Tinchen for results: Ryan (2007), albedo of 3.672±0.001 hours, and Hasegawa (2012b), albedo of 3.671 hours.
    1. 1 2 3 4 "JPL Small-Body Database Browser: 1933 Tinchen (1972 AC)" (2015-03-24 last obs.). Jet Propulsion Laboratory. Retrieved 18 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1933) Tinchen. Springer Berlin Heidelberg. p. 155. ISBN 978-3-540-29925-7. Retrieved 7 November 2015.
    3. 1 2 3 4 "LCDB Data for (1933) Tinchen". Asteroid Lightcurve Database (LCDB). Retrieved 7 November 2015.
    4. 1 2 3 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 7 November 2015.
    5. 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; Cabrera, M. S. (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:1209.5794Freely accessible. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 7 November 2015.
    6. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1933) Tinchen". Geneva Observatory. Retrieved 7 November 2015.
    7. 1 2 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 7 November 2015.
    8. ↑ "1933 Tinchen (1972 AC)". Minor Planet Center. Retrieved 7 November 2015.

    External links


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