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266787 (2009 SJ260)
Classification: Main-belt Asteroid          SPK-ID: 2266787
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1145827110563221 6.7207e-08  
a 2.698860746103639 2.2791e-08 au
q 2.389617965051596 1.7904e-07 au
i 7.711226022444032 7.2839e-06 deg
node 19.36287481223827 4.5563e-05 deg
peri 7.257730688393088 5.5299e-05 deg
M 125.4986837043623 2.8555e-05 deg
tp 2458435.945580015114
(2018-Nov-13.44558001)
0.00012953 TDB
period 1619.455959182258
4.43
2.0513e-05
5.616e-08
d
yr
n .2222968756629736 2.8158e-09 deg/d
Q 3.008103527155683 2.5402e-08 au
  Orbit Determination Parameters
   # obs. used (total)      304  
   data-arc span      6705 days (18.36 yr)  
   first obs. used      2001-12-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60646  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 15:25:30  

Additional Information
 Earth MOID = 1.39389 au 
 Jupiter MOID = 2.44847 au 
 T_jup = 3.346 
[ 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 16.1   n/a MPO460147  

266787 (2009 SJ260)          Discovered 2009-Sep-22 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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