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392247 (2009 WA123)
Classification: Main-belt Asteroid          SPK-ID: 2392247
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08151562748443547 6.7442e-08  
a 2.188645960613883 2.4982e-08 au
q 2.010237111793167 1.4337e-07 au
i 1.679927934546189 6.0949e-06 deg
node 77.07364620273555 0.00035444 deg
peri 333.5663320979987 0.00036087 deg
M 99.78192489723391 7.0487e-05 deg
tp 2458672.698394555222
(2019-Jul-08.19839456)
0.00022943 TDB
period 1182.664877247637
3.24
2.0249e-05
5.544e-08
d
yr
n .3043973038565345 5.2117e-09 deg/d
Q 2.367054809434599 2.7018e-08 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      4771 days (13.06 yr)  
   first obs. used      2007-01-10  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67263  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:43:17  

Additional Information
 Earth MOID = 1.02077 au 
 Jupiter MOID = 2.86703 au 
 T_jup = 3.670 
[ 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 18.8   n/a MPO397426  

392247 (2009 WA123)          Discovered 2009-Nov-20 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2009 WA123 = 2012 TG155 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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