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JPL Small-Body Database Browser
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392240 (2009 WZ20)
Classification: Main-belt Asteroid          SPK-ID: 2392240
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1421832907328926 5.4232e-08  
a 2.332053516335974 2.4264e-08 au
q 2.000474473218112 1.2702e-07 au
i 2.428896533450559 8.0527e-06 deg
node 24.11460303664839 0.0001106 deg
peri 146.5887229390622 0.00011402 deg
M 181.7224770953201 3.1323e-05 deg
tp 2459244.669689577801
(2021-Jan-30.16968958)
0.00011984 TDB
period 1300.787022781326
3.56
2.0301e-05
5.558e-08
d
yr
n .2767555285339892 4.3193e-09 deg/d
Q 2.663632559453836 2.7714e-08 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      6076 days (16.64 yr)  
   first obs. used      2003-03-07  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51663  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 13:03:56  

Additional Information
 Earth MOID = 1.00717 au 
 Jupiter MOID = 2.30348 au 
 T_jup = 3.555 
[ 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 17.1   n/a MPO455784  

392240 (2009 WZ20)          Discovered 2009-Nov-17 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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