32145 Katberman

32145 Katberman, provisional designation 2000 LE30, is a stony asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter. The asteroid was discovered on 7 June 2000, by the LINEAR team at Lincoln Laboratory's Experimental Test Site in Socorro, New Mexico, United States. It was named for Katharine Berman, a 2016 Intel STS awardee.[2]

32145 Katberman
Discovery [1]
Discovered byLINEAR
Discovery siteLincoln Lab's ETS
Discovery date7 June 2000
Designations
(32145) Katberman
Named after
Katharine B. Berman
(2016 Intel STS awardee)[2]
2000 LE30 · 1996 MV
1998 YL15 · 1999 AL37
main-belt · (inner) [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc20.76 yr (7,582 days)
Aphelion2.8399 AU
Perihelion1.9889 AU
2.4144 AU
Eccentricity0.1762
3.75 yr (1,370 days)
236.95°
0° 15m 45.72s / day
Inclination9.0211°
105.91°
139.73°
Physical characteristics
Dimensions2.91 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]

    Orbit and classification

    Katberman orbits the Sun in the inner main-belt at a distance of 2.0–2.8 AU once every 3 years and 9 months (1,370 days). Its orbit has an eccentricity of 0.18 and an inclination of 9° with respect to the ecliptic.[1]

    The asteroid's observation arc begins 4 years prior to its official discovery observation, with a precovery taken by the Steward Observatory's Spacewatch survey at Kitt Peak in June 1996.[2]

    Physical characteristics

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Katberman 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 a stony asteroid of 0.20 and calculates a diameter of 2.9 kilometers with an absolute magnitude of 15.04.[3]

    Rotation period

    In October 2012, and January 2014, three rotational lightcurves of Katberman were obtained from photometric observations at the Palomar Transient Factory in California. Lightcurve analysis 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]

    Naming

    This minor planet was named after Katharine Barr Berman (born 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] The official naming citation was published by the Minor Planet Center on 21 May 2016 (M.P.C. 100315).[9]

    References
    1. "JPL Small-Body Database Browser: 32145 Katberman" (2017-03-20 last obs.). Jet Propulsion Laboratory. Retrieved 27 June 2017.
    2. "32145 Katberman". Minor Planet Center. Retrieved 24 May 2016.
    3. "LCDB Data for (32145) Katberman". Asteroid Lightcurve Database (LCDB). Retrieved 24 May 2016.
    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 24 May 2016.
    5. 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:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 2 December 2016.{{cite journal}}: CS1 maint: multiple names: authors list (link)
    6. 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 24 May 2016.
    7. 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:1506.08493. 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:1506.00762. 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.

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