32145 Katberman

32145 Katberman
Discovery [1]
Discovered by LINEAR
Discovery site Lincoln Lab's ETS
Discovery date 7 June 2000
Designations
MPC designation 32145 Katberman
Named after
 Katharine B. Berman
(awardee Intel STS)[2]
2000 LE30 · 1996 MV
1998 YL15 · 1999 AL37
main-belt · (inner) [3]
Orbital characteristics [1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc 20.40 yr (7,452 days)
Aphelion 2.8400 AU
Perihelion 1.9895 AU
2.4147 AU
Eccentricity 0.1761
3.75 yr (1,371 days)
184.43°
0° 15m 45.72s / day
Inclination 9.0203°
105.91°
139.70°
Physical characteristics
Dimensions 2.91 km (calculated)[3]
4.411±0.775 km[4][5]
9.1292±0.0095 h[6]
9.140±0.090 h[7]
9.1695±0.0095 h[3][6]
0.1578±0.0624[4]
0.158±0.062[5]
0.20 (assumed)[3]
S [3]
14.4[4] · 14.578±0.005 (R)[6]
14.6[1] · 14.670±0.250 (R)[7]
14.68±0.22[8] · 15.04[3]

    32145 Katberman, provisional designation 2000 LE30, is a stony asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter. It was discovered by the U.S. LINEAR team at Lincoln Laboratory's Experimental Test Site in Socorro, New Mexico, on 7 June 2000.[2]

    The S-type asteroid orbits the Sun at a distance of 2.0–2.8 AU once every 3 years and 9 months (1,371 days). Its orbit has an eccentricity of 0.18 and an inclination of 9° with respect to the ecliptic.[1] The first precovery was taken at Steward Observatory (Kitt Peak-Spacewatch) in 1996, extending the asteroid's observation arc by 4 years prior to its discovery.[2]

    According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, the asteroid measures 4.4 kilometers in diameter and its surface has an albedo of 0.16,[4] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 2.9 kilometers, based on an absolute magnitude of 15.04.[3]

    In October 2012 and January 2014, three rotational light-curves were obtained from photometric observations made at the U.S Palomar Transient Factory in California. The light-curves gave a rotation period of 9.14, 9.17 and 9.13 hours, respectively, with a corresponding brightness variation of 0.85, 0.80 and 0.70 in magnitude (U=2/2/2).[6][7]

    The minor planet was named after Katharine Barr Berman (b. 1998) awardee in the Intel Science Talent Search of 2016. She was a finalist for her cellular and molecular biology project. At the time, she attended the U.S. Hastings High School in New York.[2] Naming citation was published on 21 May 2016 (M.P.C. 100315).[9]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 32145 Katberman" (2016-11-10 last obs.). Jet Propulsion Laboratory. Retrieved 2 December 2016.
    2. 1 2 3 4 "32145 Katberman". Minor Planet Center. Retrieved 24 May 2016.
    3. 1 2 3 4 5 6 7 "LCDB Data for (32145) Katberman". Asteroid Lightcurve Database (LCDB). Retrieved 24 May 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:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 24 May 2016.
    5. 1 2 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096Freely accessible. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 2 December 2016.
    6. 1 2 3 4 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 24 May 2016.
    7. 1 2 3 Chang, Chan-Kao; Ip, Wing-Huen; Lin, Hsing-Wen; Cheng, Yu-Chi; Ngeow, Chow-Choong; Yang, Ting-Chang; et al. (August 2015). "Asteroid Spin-rate Study Using the Intermediate Palomar Transient Factory". The Astrophysical Journal Supplement Series. 219 (2): 19. arXiv:1506.08493Freely accessible. Bibcode:2015ApJS..219...27C. doi:10.1088/0067-0049/219/2/27. Retrieved 24 May 2016.
    8. ↑ 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:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 24 May 2016.
    9. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 24 May 2016.

    External links

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