411 REFERENCE · Wikipedia
11133 Kumotori
Reference material by Wikipedia contributors. This retains its source identity and is not 411 news reporting.
Main-belt background asteroid
March 2018
yes
11133 Kumotori
#D6D6D6
T. Kobayashi
Ōizumi Obs.
2 December 1996
(11133) Kumotori
1996 XY
Mount Kumotori(Japanese mountain)
main-belt(outer)background
23 March 2018 (JD 2458200.5)
0
28.27 yr (10,324 d)
2.9313 AU
2.6210 AU
2.7762 AU
0.0559
4.63 yr (1,690 d)
54.098°
0.2131 ms / day
10.689°
83.096°
158.34°
8.96 km (calculated)
4.634 0.0005 h
0.057 (assumed)
LC (assumed)
13.517 0.003 (R)13.613.9714.10 0.46
11133 Kumotori (provisional designation 1996 XY) is a background asteroid from the central regions of the asteroid belt, approximately 9 km mi off 1 us in diameter. It was discovered on 2 December 1996, by Japanese amateur astronomer Takao Kobayashi at his Ōizumi Observatory. The asteroid was named after Mount Kumotori near Tokyo. It has a rotation period of 4.6 hours.
Orbit and classification
Kumotori is a non-family asteroid from the main belt's background population. It orbits the Sun in the central main-belt at a distance of 2.6–2.9 AU once every 4 years and 8 months (1,690 days; semi-major axis of 2.786 AU). Its orbit has an eccentricity of 0.06 and an inclination of 11° with respect to the ecliptic. The asteroid was first observed at Palomar Observatory in March 1989. The body's observation arc begins with its official discovery observation at Oizumi.
Physical characteristics
Kumotori has been characterized as a rare L-type asteroid by Pan-STARRS survey. It is also assumed to be a carbonaceous C-type asteroid.
Rotation period
In April 2012, a rotational lightcurve of Kumotori was obtained from photometric observations in the R-band by astronomers at the Palomar Transient Factory in California. Lightcurve analysis gave a rotation period of 4.634 hours with a brightness amplitude of 0.33 magnitude (U=2).
Diameter and albedo
The Collaborative Asteroid Lightcurve Link assumes an albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 8.96 kilometers based on an absolute magnitude of 13.97.
Naming
This minor planet was named after Mount Kumotori (雲取山 Kumotori-san). With an altitude of 2017 m ft, it is the highest peak in the Tokyo metropolitan area, located at the boundary between Tokyo and Saitama and considered to be one of the 100 most celebrated mountains of Japan. The official naming citation was published by the Minor Planet Center on 9 November 2003 (M.P.C. 50251).
References
30em 2017-07-05 last obs.
JPL Small-Body Database Browser: 11133 Kumotori (1996 XY)
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2011133
Jet Propulsion Laboratory
2 March 2018
11133 Kumotori (1996 XY)
Minor Planet Center
https://www.minorplanetcenter.net/db_search/show_object?object_id=11133
2 March 2018
MPC/MPO/MPS Archive
Minor Planet Center
https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html
2 March 2018
Asteroid 11133 Kumotori – Proper Elements
AstDyS-2, Asteroids – Dynamic Site
https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=11133
29 October 2019
11133
2 March 2018
6
Adam Waszczak
Chan-Kao Chang
Eran O. Ofek
Russ Laher
Frank Masci
David Levitan
Jason Surace
Yu-Chi Cheng
Wing-Huen Ip
Daisuke Kinoshita
George Helou
Thomas A. Prince
Shrinivas Kulkarni
September 2015
Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W
The Astronomical Journal
150
3
35
2015AJ....150...75W
10.1088/0004-6256/150/3/75
1504.04041
2 March 2018
6
Peter Veres
Robert Jedicke
Alan Fitzsimmons
Larry Denneau
Mikael Granvik
Bryce Bolin
Serge Chastel
Richard J. Wainscoat
William S. Burgett
Kenneth C. Chambers
Heather Flewelling
Nick Kaiser
Eugen A. Magnier
Jeff S. Morgan
Paul A. Price
John L. Tonry
Christopher Waters
November 2015
Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V
Icarus
261
34–47
2015Icar..261...34V
10.1016/j.icarus.2015.08.007
1506.00762
2 March 2018
External links
Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 )
Dictionary of Minor Planet Names, Google books
Discovery Circumstances: Numbered Minor Planets (10001)-(15000) – Minor Planet Center
2011133
11132 Horne 11133 11134 České Budějovice
011133
Category:Discoveries by Takao Kobayashi
Category:Named minor planets
19961202