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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1419519197411492 5.4001e-08  
a 2.332645282117194 2.4179e-08 au
q 2.001521806245524 1.2667e-07 au
i 2.428427224354761 8.032e-06 deg
node 24.11145356222816 0.00011016 deg
peri 146.5112447346826 0.00011362 deg
M 292.4789119807157 3.2494e-05 deg
tp 2459244.566633589236
(2021-Jan-30.06663359)
0.00012003 TDB
period 1301.282172275283
3.56
2.0233e-05
5.539e-08
d
yr
n .2766502205824756 4.3015e-09 deg/d
Q 2.663768757988865 2.7612e-08 au
  Orbit Determination Parameters
   # obs. used (total)      200  
   data-arc span      6162 days (16.87 yr)  
   first obs. used      2003-03-07  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50905  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:43:17  

Additional Information
 Earth MOID = 1.00778 au 
 Jupiter MOID = 2.30197 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 17.2   n/a MPO494987  

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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