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266903 (2009 WO156)
Classification: Main-belt Asteroid          SPK-ID: 2266903
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07613021665036106 5.6438e-08  
a 3.170888520907692 3.2635e-08 au
q 2.929488090836847 1.8987e-07 au
i 2.151022544528039 5.8011e-06 deg
node 148.0837329613647 0.00015283 deg
peri 253.2917364198002 0.00015716 deg
M 335.442016849854 3.5819e-05 deg
tp 2459141.188980915400
(2020-Oct-18.68898092)
0.00020516 TDB
period 2062.385694292773
5.65
3.1839e-05
8.717e-08
d
yr
n .1745551285563247 2.6948e-09 deg/d
Q 3.412288950978537 3.5119e-08 au
  Orbit Determination Parameters
   # obs. used (total)      232  
   data-arc span      6214 days (17.01 yr)  
   first obs. used      2003-10-19  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57728  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:22:47  

Additional Information
 Earth MOID = 1.93856 au 
 Jupiter MOID = 1.92135 au 
 T_jup = 3.197 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO450147  

266903 (2009 WO156)          Discovered 2009-Nov-20 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 WO156 = 2008 SJ87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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