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312392 (2008 EF158)
Classification: Main-belt Asteroid          SPK-ID: 2312392
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1786545830262785 4.6722e-08  
a 2.788627161026373 3.8576e-08 au
q 2.290426138357451 1.3215e-07 au
i 12.02141346600507 6.972e-06 deg
node 191.6638405678792 2.2831e-05 deg
peri 69.21910091594206 3.1381e-05 deg
M 157.0919847382477 2.7634e-05 deg
tp 2458258.274907702177
(2018-May-19.77490770)
0.00012035 TDB
period 1700.920856480592
4.66
3.5294e-05
9.663e-08
d
yr
n .2116500592184418 4.3918e-09 deg/d
Q 3.286828183695294 4.5468e-08 au
  Orbit Determination Parameters
   # obs. used (total)      191  
   data-arc span      5177 days (14.17 yr)  
   first obs. used      2005-09-25  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59265  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:32:31  

Additional Information
 Earth MOID = 1.30885 au 
 Jupiter MOID = 1.86451 au 
 T_jup = 3.275 
[ 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 MPO455302  

312392 (2008 EF158)          Discovered 2008-Mar-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2008 EF158 = 2005 SC269 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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