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437218 (2012 WJ23)
Classification: Main-belt Asteroid          SPK-ID: 2437218
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2334578942172087 5.1571e-08  
a 2.618999361643316 2.5785e-08 au
q 2.007573285717854 1.3166e-07 au
i 17.64248519651069 6.3216e-06 deg
node 56.63268164472759 1.954e-05 deg
peri 266.5684038756899 2.53e-05 deg
M 86.21893598465151 1.3372e-05 deg
tp 2459025.732486917089
(2020-Jun-25.23248692)
5.8107e-05 TDB
period 1548.1089297322
4.24
2.2863e-05
6.26e-08
d
yr
n .2325417760249434 3.4342e-09 deg/d
Q 3.230425437568779 3.1805e-08 au
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      7231 days (19.80 yr)  
   first obs. used      2001-02-22  
   last obs. used      2020-12-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59512  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 07:55:48  

Additional Information
 Earth MOID = 1.08526 au 
 Jupiter MOID = 2.33915 au 
 T_jup = 3.302 
[ 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 16.56   n/a E2021B25  

437218 (2012 WJ23)          Discovered 2012-Nov-07 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-06-04

Alternate Designations
 2012 WJ23 = 2015 FR295 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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