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266807 (2009 SQ353)
Classification: Main-belt Asteroid          SPK-ID: 2266807
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 .1099545859781223 7.7443e-08  
a 2.958288803716732 3.5039e-08 au
q 2.633011383100345 2.3934e-07 au
i .5625144433984526 7.1018e-06 deg
node 206.5096559272124 0.000716 deg
peri 285.3320893088678 0.0007167 deg
M 318.3208278611348 3.1467e-05 deg
tp 2459215.667099234170
(2021-Jan-01.16709923)
0.00016373 TDB
period 1858.485947518872
5.09
3.3019e-05
9.04e-08
d
yr
n .1937060651336157 3.4415e-09 deg/d
Q 3.283566224333121 3.8892e-08 au
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      6793 days (18.60 yr)  
   first obs. used      2001-03-22  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58359  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 04:06:36  

Additional Information
 Earth MOID = 1.64758 au 
 Jupiter MOID = 1.75423 au 
 T_jup = 3.258 
[ 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 16.7   n/a MPO454983  

266807 (2009 SQ353)          Discovered 2009-Sep-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 SQ353 = 2006 DK81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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