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266795 (2009 SL307)
Classification: Outer Main-belt Asteroid          SPK-ID: 2266795
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1357398617467044 4.7821e-08  
a 3.247410048129822 3.9526e-08 au
q 2.806607057161821 1.6894e-07 au
i 3.901152680609952 4.6774e-06 deg
node 74.3511137026548 9.6906e-05 deg
peri 14.5718154885173 9.9867e-05 deg
M 235.1850685249119 2.6768e-05 deg
tp 2459741.585240549255
(2022-Jun-11.08524055)
0.00016539 TDB
period 2137.490149974408
5.85
3.9025e-05
1.068e-07
d
yr
n .1684218287528998 3.075e-09 deg/d
Q 3.688213039097823 4.4892e-08 au
  Orbit Determination Parameters
   # obs. used (total)      289  
   data-arc span      6229 days (17.05 yr)  
   first obs. used      2003-09-22  
   last obs. used      2020-10-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56878  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:23:25  

Additional Information
 Earth MOID = 1.82328 au 
 Jupiter MOID = 1.51985 au 
 T_jup = 3.164 
[ 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 15.7   n/a MPO440312  

266795 (2009 SL307)          Discovered 2009-Sep-17 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 SL307 = 2003 SE431 = 2003 SL264 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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