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442500 (2011 WG2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2442500
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07968793909747061 7.3851e-08  
a 3.541657283842093 8.1532e-08 au
q 3.259429913903171 2.75e-07 au
i 19.13814173179472 7.7858e-06 deg
node 74.50756834185272 2.1609e-05 deg
peri 307.7950404840348 5.4789e-05 deg
M 200.9206862252835 5.6911e-05 deg
tp 2460472.270015371465
(2024-Jun-10.77001537)
0.00040975 TDB
period 2434.491300875098
6.67
8.4066e-05
2.302e-07
d
yr
n .1478748352358437 5.1063e-09 deg/d
Q 3.823884653781014 8.8029e-08 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      4813 days (13.18 yr)  
   first obs. used      2008-04-06  
   last obs. used      2021-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59033  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 10:09:51  

Additional Information
 Earth MOID = 2.30318 au 
 Jupiter MOID = 1.61836 au 
 T_jup = 3.023 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.48   n/a E2021B25  

442500 (2011 WG2)          Discovered 2008-Apr-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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