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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .107535630954213 1.6062e-08  
a 2.994938721208501 1.5407e-08 au
q 2.672876096154142 5.2969e-08 au
i 9.134290766839072 7.3786e-07 deg
node 226.96685627351 8.4435e-06 deg
peri 108.9590117869133 1.4351e-05 deg
M 204.7937645158142 1.5147e-05 deg
tp 2460016.681981065865
(2023-Mar-13.18198107)
8.2589e-05 TDB
period 1893.129565748985
5.18
1.4609e-05
4e-08
d
yr
n .1901613109388907 1.4674e-09 deg/d
Q 3.317001346262861 1.7064e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2152  
   data-arc span      10374 days (28.40 yr)  
   first obs. used      1992-10-19  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45593  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:54:52  

Additional Information
 Earth MOID = 1.68004 au 
 Jupiter MOID = 2.07731 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 13.05   n/a E2021B10  
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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