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447731 (2007 EF217)
Classification: Main-belt Asteroid          SPK-ID: 2447731
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 .08203731613028957 6.8085e-08  
a 3.151454678102409 5.4324e-08 au
q 2.892917794404641 2.1881e-07 au
i 7.369844330059659 7.7469e-06 deg
node 180.9826563904194 5.566e-05 deg
peri 291.1931752114144 7.6087e-05 deg
M 187.3939264430992 5.7117e-05 deg
tp 2459980.257503331315
(2023-Feb-04.75750333)
0.00033671 TDB
period 2043.454751799329
5.59
5.2837e-05
1.447e-07
d
yr
n .1761722395286748 4.5552e-09 deg/d
Q 3.409991561800176 5.8781e-08 au
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      5846 days (16.01 yr)  
   first obs. used      2004-09-12  
   last obs. used      2020-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62752  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 07:47:55  

Additional Information
 Earth MOID = 1.91982 au 
 Jupiter MOID = 1.69867 au 
 T_jup = 3.190 
[ 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 16.6   n/a MPO437740  

447731 (2007 EF217)          Discovered 2007-Mar-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-10-28

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