10121 Arzamas

10121 Arzamas
Discovery [1]
Discovered by E. W. Elst
Discovery site Caussols (010)
Discovery date 27 January 1993
Designations
MPC designation 10121 Arzamas
Named after
 Arzamas
(Russian city)[2]
1993 BS4 · 1994 GA11
2118 T-1
main-belt (outer) · Themis [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 44.98 yr (16,428 days)  
Aphelion 3.7015 AU (553.7 Gm)
Perihelion 2.7065 AU (404.9 Gm)
3.2040 AU (479.3 Gm)
Eccentricity 0.15527
5.74 yr (2,095 days)
217.00°
0° 10m 18.48s / day
Inclination 0.89670°
30.567°
263.13°
Physical characteristics
Dimensions 10.757±0.391 km[4]
10.28 km (calculated)[3]
12.1±0.3 h[5]
12.1991±0.0060 h[6]
0.0801±0.0237[4]
0.08 (assumed)[3]
C [3]
13.4[1]
13.2[4]
13.375±0.003[6]

    10121 Arzamas, provisional designation 1993 BS4, is a carbonarceous Themistian asteroid from the outer region of the asteroid belt, about 10 kilometers in diameter. It was discovered on 27 January 1993, by Belgian astronomer Eric Elst at Caussols (010), southeastern France.[7]

    The dark C-type asteroid is a member of the Themis family, a dynamical family of outer main-belt asteroids with nearly coplanar ecliptical orbits. It orbits the Sun at a distance of 2.7–3.7 AU once every 5 years and 9 months (2,095 days). Its orbit has an eccentricity of 0.16 and an inclination of 1° with respect to the ecliptic.[1] Two photometric light-curve observations at the U.S. Palomar Transient Factory, California, rendered a rotation period of 12.1±0.3 and 12.1991±0.0060 hours with a brightness amplitude of 0.7 and 0.6 in magnitude, respectively (U=2).[5][6] According to the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 10.8 kilometer in diameter based on an albedo of 0.08.[4] The Collaborative Asteroid Lightcurve Link (CALL) also assumes an albedo of 0.08 and calculates a diameter of 10.3 kilometers.[3]

    The minor planet is named after the Russian city of Arzamas, a major transit center on the road from Moscow to the eastern parts of the country. It was founded in 1578 by Ivan the Terrible and is located on the Tyosha River, known for making leather and dyeing fabrics ever since.[2][7]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 10121 Arzamas (1993 BS4)" (2016-02-17 last obs.). Jet Propulsion Laboratory. Retrieved 8 April 2016.
    2. 1 2 Schmadel, Lutz D. (2009). Dictionary of Minor Planet Names – (10121) Arzamas, Addendum to Fifth Edition: 2006–2008. Springer Berlin Heidelberg. p. 47. ISBN 978-3-540-00238-3. Retrieved March 2016.
    3. 1 2 3 4 5 "LCDB Data for (10121) Arzamas". Asteroid Lightcurve Database (LCDB). Retrieved March 2016.
    4. 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.
    5. 1 2 Polishook, D.; Ofek, E. O.; Waszczak, A.; Kulkarni, S. R.; Gal-Yam, A.; Aharonson, O.; et al. (April 2012). "Asteroid rotation periods from the Palomar Transient Factory survey". Monthly Notices of the Royal Astronomical Society 421 (3): 2094–2108. arXiv:1201.1930. Bibcode:2012MNRAS.421.2094P. doi:10.1111/j.1365-2966.2012.20462.x. Retrieved March 2016.
    6. 1 2 3 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 March 2016.
    7. 1 2 "10121 Arzamas (1993 BS4)". Minor Planet Center. Retrieved March 2016.

    External links


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