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259645 (2003 WJ81)
Classification: Main-belt Asteroid          SPK-ID: 2259645
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1446365372334039 5.8142e-08  
a 2.430787516446235 1.333e-08 au
q 2.079206827317265 1.4092e-07 au
i 2.093794483670492 6.4396e-06 deg
node 16.32463088431149 0.00012308 deg
peri 5.830029813022745 0.00012453 deg
M 160.9580496704961 1.7209e-05 deg
tp 2458381.587686637731
(2018-Sep-20.08768664)
6.5178e-05 TDB
period 1384.2639946653
3.79
1.1386e-05
3.117e-08
d
yr
n .2600659999735412 2.1392e-09 deg/d
Q 2.782368205575204 1.5258e-08 au
  Orbit Determination Parameters
   # obs. used (total)      238  
   data-arc span      8973 days (24.57 yr)  
   first obs. used      1995-08-29  
   last obs. used      2020-03-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54228  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 23:08:35  

Additional Information
 Earth MOID = 1.0822 au 
 Jupiter MOID = 2.67363 au 
 T_jup = 3.492 
[ 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 17.3   n/a MPO454933  

259645 (2003 WJ81)          Discovered 2003-Nov-20 by LINEAR at Socorro
Reference: 20110119/Numbers.arcLast Updated: 2011-01-25

Alternate Designations
 2003 WJ81 = 1999 TD318 = 1999 UW41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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