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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1073338592737587 3.7999e-08  
a 2.995502444682373 1.7328e-08 au
q 2.673983606830635 1.1065e-07 au
i 9.133648129119139 3.6987e-06 deg
node 226.9767393427363 2.5325e-05 deg
peri 108.8964237265007 3.1603e-05 deg
M 166.8300487393184 2.1375e-05 deg
tp 2458122.944241652779
(2018-Jan-04.44424165)
0.00010917 TDB
period 1893.664093443041
5.18
1.6431e-05
4.499e-08
d
yr
n .190107633791298 1.6496e-09 deg/d
Q 3.317021282534111 1.9188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1996  
   data-arc span      10053 days (27.52 yr)  
   first obs. used      1992-10-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45886  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:09:38  

Additional Information
 Earth MOID = 1.68295 au 
 Jupiter MOID = 2.07729 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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