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100418 (1996 EF9)
Classification: Main-belt Asteroid          SPK-ID: 2100418
[ 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 .188871909699579 5.4595e-08  
a 2.558749504709176 1.7594e-08 au
q 2.075473599311902 1.3755e-07 au
i 4.814641999338527 6.2529e-06 deg
node 150.9745570328571 6.8847e-05 deg
peri 245.6088429744933 7.1493e-05 deg
M 74.78792873193238 2.2049e-05 deg
tp 2458689.923144154304
(2019-Jul-25.42314415)		 9.0345e-05 TDB
period 1494.996184547518
4.09		 1.542e-05
4.222e-08		 d
yr
n .2408032901495057 2.4837e-09 deg/d
Q 3.04202541010645 2.0917e-08 au
   Orbit Determination Parameters
   # obs. used (total)      298  
   data-arc span      8699 days (23.82 yr)  
   first obs. used      1996-03-12  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56299  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:56:44  

Additional Information
 Earth MOID = 1.08783 au 
 Jupiter MOID = 2.3964 au 
 T_jup = 3.406 
[ 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 16.4   n/a MPO417506  

100418 (1996 EF9)          Discovered 1996-Mar-12 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1996 EF9 = 2000 EB54 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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