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266786 (2009 SE253)
Classification: Main-belt Asteroid          SPK-ID: 2266786
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 .1273554497522976 6.4237e-08  
a 2.755822056543294 2.8482e-08 au
q 2.404853099094921 1.7968e-07 au
i 1.827701482901674 6.7769e-06 deg
node 323.755075016275 0.00018932 deg
peri 225.2943742386125 0.0001911 deg
M 319.6702648824889 2.4546e-05 deg
tp 2459187.696641731943
(2020-Dec-04.19664173)
0.00011446 TDB
period 1670.995131188909
4.57
2.5906e-05
7.093e-08
d
yr
n .2154404841047388 3.34e-09 deg/d
Q 3.106791013991666 3.211e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      7915 days (21.67 yr)  
   first obs. used      1998-05-23  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62926  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:49:51  

Additional Information
 Earth MOID = 1.40594 au 
 Jupiter MOID = 1.85695 au 
 T_jup = 3.331 
[ 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 16.9   n/a MPO418415  

266786 (2009 SE253)          Discovered 2009-Sep-22 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 SE253 = 2007 EF76 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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