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447717 (2007 EL146)
Classification: Main-belt Asteroid          SPK-ID: 2447717
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08217234851322623 6.6152e-08  
a 2.248258143590404 2.0344e-08 au
q 2.063513491867594 1.5008e-07 au
i 6.464281379970573 7.2408e-06 deg
node 153.6655755756785 5.2195e-05 deg
peri 24.84881878757474 6.4344e-05 deg
M 328.6582764904394 3.7674e-05 deg
tp 2459107.698340909315
(2020-Sep-15.19834091)
0.00012947 TDB
period 1231.310802533921
3.37
1.6713e-05
4.576e-08
d
yr
n .292371348695353 3.9685e-09 deg/d
Q 2.433002795313214 2.2016e-08 au
  Orbit Determination Parameters
   # obs. used (total)      104  
   data-arc span      4186 days (11.46 yr)  
   first obs. used      2007-02-26  
   last obs. used      2018-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58145  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:47:55  

Additional Information
 Earth MOID = 1.06971 au 
 Jupiter MOID = 2.52819 au 
 T_jup = 3.616 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457165.5 (2015-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08213796594441794 6.6237e-08  
q 2.063703313533683 1.5027e-07 au
tp 2456646.139969101202
(2013-Dec-19.63996910)
0.00011915 TDB
node 153.6972905577524 5.2173e-05 deg
peri 25.13392444513664 6.4321e-05 deg
i 6.465415227315925 7.2431e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      104  
   data-arc span      4186 days (11.46 yr)  
   first obs. used      2007-02-26  
   last obs. used      2018-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58145  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:47:55  

Additional Information
 Jupiter MOID = 2.52819 au 
 T_jup = 3.616 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.387297658874748E-15 -9.876628907864739E-15 -4.630955074955305E-13 4.352568318250248E-14 -2.627134109739435E-13 -5.026318868534754E-15
q -9.876628907864739E-15 2.258081400706311E-14 1.440287775483601E-12 -1.030382816661904E-13 7.558493249484549E-13 1.176109039227736E-14
tp -4.630955074955305E-13 1.440287775483601E-12 1.419716869102579E-8 -3.551684113397566E-11 4.499452109732369E-9 -1.144864137727207E-11
node 4.352568318250248E-14 -1.030382816661904E-13 -3.551684113397566E-11 2.722004938461189E-9 -2.715874473853825E-9 1.310030125881205E-10
peri -2.627134109739435E-13 7.558493249484549E-13 4.499452109732369E-9 -2.715874473853825E-9 4.137168141433905E-9 -1.334302561341767E-10
i -5.026318868534754E-15 1.176109039227736E-14 -1.144864137727207E-11 1.310030125881205E-10 -1.334302561341767E-10 5.246261796331672E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.9   n/a MPO456121  

447717 (2007 EL146)          Discovered 2007-Feb-26 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-10-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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