10046 Creighton

10046 Creighton
Discovery [1]
Discovered by INAS
Discovery site Palomar Obs.
Discovery date 2 May 1986
Designations
MPC designation 10046 Creighton
Named after
 James M. Creighton
(American architect)[2]
1986 JC · 1986 LD
1990 KH2 · 1990 SJ10
main-belt · (inner) [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 61.53 yr (22,475 days)       
Aphelion 2.8993 AU
Perihelion 1.7798 AU
2.3395 AU
Eccentricity 0.2392
3.58 yr (1,307 days)
76.620°
Inclination 8.3225°
101.68°
177.07°
Physical characteristics
Dimensions 12.40±0.7 km (IRAS:4)[1][3]
10.428±0.207 km[4]
11.15±2.45 km[5]
6.566±0.002 h[lower-alpha 1]
6.5698±0.0002 h[6]
6.5668±0.0036 h[7]
0.0418±0.005 (IRAS:4)
0.0709±0.0132[4]
0.052±0.038[5]
0.0417 (derived)[3]
C [3] · X [8]
13.6[1][3][5]
13.4[4]
13.637±0.009 (R)[7]
13.73±0.32[8]

    10046 Creighton, provisional designation 1986 JC, is a carbonaceous asteroid from the inner regions of the asteroid belt, approximately 12 kilometers in diameter. It was discovered by the International Near-Earth Asteroid Survey (INAS) at the U.S. Palomar Observatory, California, on 2 May 1986.[2]

    The dark C-type asteroid orbits the Sun at a distance of 1.8–2.9 AU once every 3 years and 7 months (1,307 days). Its orbit has a relatively high eccentricity of 0.24 and an inclination of 8° with respect to the ecliptic.[1] Due to precovery observations made at Palomar Observatory in 1954, the asteroid has a observation arc of more than 60 years.[2]

    A photometric light-curve analysis by American astronomer Brian Skiff in 2011, gave a well-defined rotation period of 6.566±0.002 hours with a brightness amplitude of 0.68 in magnitude (U=3).[lower-alpha 1] Other observations are in agreement and were made by the Palomar Transient Factory, California, and by Maurice Clark at the Preston Gott Observatory at Texas Tech University, rendering a period of 6.5668±0.0036 and 6.5698±0.0002 hours with a magnitude of 0.46 and 0.56, respectively (U=2/3-).[6][7]

    According to the surveys carried out by the Infrared Astronomical Satellite IRAS and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures between 10.4 and 12.4 kilometers in diameter, and its surface has a low albedo between 0.04 and 0.07.[1][4][5] The Collaborative Asteroid Lightcurve Link (CALL) derives an albedo of 0.04 and a diameter of 12.4 kilometers, in line with the 4 observations made by IRAS.[3]

    The minor planet was named after pioneering American architect James M. Creighton (1856-1946), who designed the Old Main building at Arizona State University, and designed and constructed the original road to the summit of Pikes Peak in Colorado.[2]

    References

    1. 1 2 Skiff (2011) web: rotation period 6.566±0.002 hours with a brightness amplitude of 0.68 mag. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (10046) Creighton
    1. 1 2 3 4 5 6 "JPL Small-Body Database Browser: 10046 Creighton (1986 JC)" (2016-01-12 last obs.). Jet Propulsion Laboratory. Retrieved March 2016.
    2. 1 2 3 4 "10046 Creighton (1986 JC)". Minor Planet Center. Retrieved March 2016.
    3. 1 2 3 4 5 6 "LCDB Data for (10046) Creighton". 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 3 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 March 2016.
    6. 1 2 Clark, Maurice (April 2012). "Asteroid Lightcurves from the Preston Gott Observatory". The Minor Planet Bulletin 39 (2): 63–65. Bibcode:2012MPBu...39...63C. ISSN 1052-8091. Retrieved March 2016.
    7. 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.
    8. 1 2 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 March 2016.

    External links


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