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JPL Small-Body Database Browser
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392254 (2009 WY227)
Classification: Main-belt Asteroid          SPK-ID: 2392254
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09624022567071844 8.9639e-08  
a 2.27963304815627 2.9317e-08 au
q 2.060240649155283 2.1304e-07 au
i 5.098058212996505 1.0452e-05 deg
node 73.60281766508497 9.1154e-05 deg
peri 51.6177835544982 0.00010695 deg
M 204.2508778543792 5.9909e-05 deg
tp 2459144.399863939424
(2020-Oct-21.89986394)
0.00021506 TDB
period 1257.175310658392
3.44
2.4252e-05
6.64e-08
d
yr
n .2863562439923079 5.524e-09 deg/d
Q 2.499025447157257 3.2139e-08 au
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      4668 days (12.78 yr)  
   first obs. used      2007-01-10  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69407  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 13:03:56  

Additional Information
 Earth MOID = 1.08068 au 
 Jupiter MOID = 2.55013 au 
 T_jup = 3.595 
[ 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 18.0   n/a MPO455784  

392254 (2009 WY227)          Discovered 2007-Jan-10 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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