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308939 (2006 SL397)
Classification: Main-belt Asteroid          SPK-ID: 2308939
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06909201486027552 9.7275e-08  
a 2.854218917813125 6.5523e-08 au
q 2.657015181929101 2.9365e-07 au
i 4.982199000439184 1.0599e-05 deg
node 234.5838054760883 0.00010651 deg
peri 167.499551400467 0.00014654 deg
M 286.6012767933649 0.00010767 deg
tp 2459359.599955977275
(2021-May-25.09995598)
0.000536 TDB
period 1761.283827620216
4.82
6.065e-05
1.661e-07
d
yr
n .2043963581306593 7.0384e-09 deg/d
Q 3.05142265369715 7.005e-08 au
  Orbit Determination Parameters
   # obs. used (total)      83  
   data-arc span      4629 days (12.67 yr)  
   first obs. used      2006-09-25  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58163  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:58:22  

Additional Information
 Earth MOID = 1.66577 au 
 Jupiter MOID = 2.26125 au 
 T_jup = 3.295 
[ 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 17.0   n/a MPO437368  

308939 (2006 SL397)          Discovered 2006-Sep-25 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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