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442748 (2012 WJ19)
Classification: Main-belt Asteroid          SPK-ID: 2442748
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1304285404823016 5.4513e-08  
a 2.639398475722486 3.3636e-08 au
q 2.295145584782791 1.5235e-07 au
i 9.838377678857583 8.6975e-06 deg
node 251.6378611614205 3.651e-05 deg
peri 73.77513193791989 5.2261e-05 deg
M 352.7239282805699 3.8561e-05 deg
tp 2459032.155584699355
(2020-Jul-01.65558470)
0.00016797 TDB
period 1566.231193314881
4.29
2.9939e-05
8.197e-08
d
yr
n .229851123854883 4.3937e-09 deg/d
Q 2.983651366662182 3.8023e-08 au
  Orbit Determination Parameters
   # obs. used (total)      114  
   data-arc span      6149 days (16.84 yr)  
   first obs. used      2003-09-29  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58723  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-26 00:53:26  

Additional Information
 Earth MOID = 1.30628 au 
 Jupiter MOID = 2.33938 au 
 T_jup = 3.363 
[ 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 17.0   n/a MPO434644  

442748 (2012 WJ19)          Discovered 2012-Oct-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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