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392255 (2009 WR233)
Classification: Main-belt Asteroid          SPK-ID: 2392255
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1015427580722435 7.0828e-08  
a 2.267533632003031 2.1353e-08 au
q 2.037282012987871 1.5897e-07 au
i 2.02981926423653 7.4603e-06 deg
node 53.47155186340858 0.00018799 deg
peri 104.5156257722956 0.00019208 deg
M 274.8943246775868 4.4893e-05 deg
tp 2459295.339084612838
(2021-Mar-21.83908461)
0.00015796 TDB
period 1247.179698163658
3.41
1.7617e-05
4.823e-08
d
yr
n .2886512669586128 4.0773e-09 deg/d
Q 2.49778525101819 2.3521e-08 au
  Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      7269 days (19.90 yr)  
   first obs. used      1999-12-02  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61819  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 13:03:56  

Additional Information
 Earth MOID = 1.04738 au 
 Jupiter MOID = 2.47977 au 
 T_jup = 3.607 
[ 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 17.5   n/a MPO494987  

392255 (2009 WR233)          Discovered 2009-Sep-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2009 WR233 = 2013 YH77 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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