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312397 (2008 FE4)
Classification: Main-belt Asteroid          SPK-ID: 2312397
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05776463634756824 5.3695e-08  
a 3.045180756078969 4.0285e-08 au
q 2.869276997091455 1.6952e-07 au
i 8.668851436371138 6.7995e-06 deg
node 344.5050772439693 3.7583e-05 deg
peri 239.6651568933091 6.8725e-05 deg
M 61.14256215095124 5.6304e-05 deg
tp 2458670.845373852117
(2019-Jul-06.34537385)
0.00030413 TDB
period 1940.966509061997
5.31
3.8516e-05
1.055e-07
d
yr
n .1854746067586585 3.6805e-09 deg/d
Q 3.221084515066484 4.2612e-08 au
  Orbit Determination Parameters
   # obs. used (total)      223  
   data-arc span      6400 days (17.52 yr)  
   first obs. used      2001-12-20  
   last obs. used      2019-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57217  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:45:56  

Additional Information
 Earth MOID = 1.87384 au 
 Jupiter MOID = 1.80151 au 
 T_jup = 3.219 
[ 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 15.9   n/a MPO437379  

312397 (2008 FE4)          Discovered 2008-Mar-25 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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