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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1077199987063918 1.5981e-08  
a 2.994251901884017 1.4347e-08 au
q 2.671711090886459 5.2881e-08 au
i 9.135545675703638 7.3775e-07 deg
node 226.9611387082757 8.2831e-06 deg
peri 109.0517723041772 1.4268e-05 deg
M 241.98299097464 1.5103e-05 deg
tp 2460016.901774150949
(2023-Mar-13.40177415)
8.1423e-05 TDB
period 1892.478385436359
5.18
1.3601e-05
3.724e-08
d
yr
n .190226743285627 1.3672e-09 deg/d
Q 3.316792712881574 1.5892e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2441  
   data-arc span      10464 days (28.65 yr)  
   first obs. used      1992-10-19  
   last obs. used      2021-06-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44589  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:47:38  

Additional Information
 Earth MOID = 1.67993 au 
 Jupiter MOID = 2.07735 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 13.06   n/a MPCxxxxx  
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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