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266785 (2009 SC251)
Classification: Main-belt Asteroid          SPK-ID: 2266785
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1936552957662048 5.4792e-08  
a 3.127253103887659 5.3723e-08 au
q 2.521643979118513 1.7364e-07 au
i 1.725972422969707 7.7415e-06 deg
node 271.4505759209326 0.00030766 deg
peri 143.7868782405881 0.00030908 deg
M 306.6976697718296 2.7461e-05 deg
tp 2459299.579516609354
(2021-Mar-26.07951661)
0.00015703 TDB
period 2019.960957025183
5.53
5.2051e-05
1.425e-07
d
yr
n .1782212664794154 4.5925e-09 deg/d
Q 3.732862228656806 6.4127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      143  
   data-arc span      4985 days (13.65 yr)  
   first obs. used      2003-08-04  
   last obs. used      2017-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52052  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-10 17:14:43  

Additional Information
 Earth MOID = 1.5336 au 
 Jupiter MOID = 1.63475 au 
 T_jup = 3.184 
[ 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 16.4   n/a MPO230054  

266785 (2009 SC251)          Discovered 2009-Sep-20 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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