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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07634255146523557 5.4453e-08  
a 3.171590263538966 2.9756e-08 au
q 2.929462970618102 1.8041e-07 au
i 2.150958135589682 4.9372e-06 deg
node 148.0809422252352 0.00015273 deg
peri 253.3344902670666 0.00015657 deg
M 10.31635487623257 3.2181e-05 deg
tp 2459141.379538819256
(2020-Oct-18.87953882)
0.00018461 TDB
period 2063.070365493313
5.65
2.9034e-05
7.949e-08
d
yr
n .1744971989425665 2.4557e-09 deg/d
Q 3.413717556459829 3.2028e-08 au
  Orbit Determination Parameters
   # obs. used (total)      274  
   data-arc span      6326 days (17.32 yr)  
   first obs. used      2003-10-19  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55298  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 03:17:42  

Additional Information
 Earth MOID = 1.93752 au 
 Jupiter MOID = 1.92036 au 
 T_jup = 3.196 
[ 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 16.06   n/a MPCxxxxx  

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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