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JPL Small-Body Database Browser
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15303 Hatoyamamachi (1992 UJ2)
Classification: Main-belt Asteroid          SPK-ID: 2015303
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .107014162799893 3.8378e-08  
a 2.996003050999952 1.7958e-08 au
q 2.675388292751267 1.1255e-07 au
i 9.134405362445111 4.2779e-06 deg
node 226.9886099603755 2.5486e-05 deg
peri 108.8700391662882 3.2564e-05 deg
M 90.84138728750385 2.1817e-05 deg
tp 2458122.538339794872
(2018-Jan-04.03833980)
0.00011342 TDB
period 1894.138815045545
5.19
1.703e-05
4.663e-08
d
yr
n .1900599877582592 1.7088e-09 deg/d
Q 3.316617809248637 1.988e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1749  
   data-arc span      9910 days (27.13 yr)  
   first obs. used      1992-10-19  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48063  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:57:19  

Additional Information
 Earth MOID = 1.68346 au 
 Jupiter MOID = 2.07567 au 
 T_jup = 3.227 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0   n/a MPO365435  
diameter diameter 8.523 km 0.204 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.202   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15303 Hatoyamamachi           Discovered 1992 Oct. 19 by K. Endate and K. Watanabe at Kitami.
Hatoyamamachi is a town in Saitama within the Tokyo metropolitan area. While rich in nature, the town contains cutting-edge technology institutes for earth observation, meteorology and fundamental research.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-08-29Last Updated: 2015-09-02

Alternate Designations
 1992 UJ2 = 1998 XH95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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