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305497 (2008 EP74)
Classification: Main-belt Asteroid          SPK-ID: 2305497
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07134482830874923 4.9751e-08  
a 3.025656805401864 2.8154e-08 au
q 2.809791840099269 1.452e-07 au
i 3.13375256023287 5.4225e-06 deg
node 114.413485804546 9.7336e-05 deg
peri 87.97385988253035 0.00010446 deg
M 95.91207988866132 3.7904e-05 deg
tp 2458488.348165193389
(2019-Jan-04.84816519)
0.00020211 TDB
period 1922.329916569526
5.26
2.6831e-05
7.346e-08
d
yr
n .1872727448587151 2.6139e-09 deg/d
Q 3.241521770704459 3.0163e-08 au
  Orbit Determination Parameters
   # obs. used (total)      238  
   data-arc span      10377 days (28.41 yr)  
   first obs. used      1992-02-29  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60998  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 19:50:59  

Additional Information
 Earth MOID = 1.80863 au 
 Jupiter MOID = 1.71955 au 
 T_jup = 3.239 
[ 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 16.1   n/a MPO437357  

305497 (2008 EP74)          Discovered 2008-Mar-07 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 EP74 = 2002 AW194 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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