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305493 (2008 EQ40)
Classification: Main-belt Asteroid          SPK-ID: 2305493
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1591855597402561 4.9566e-08  
a 3.13115563252618 3.472e-08 au
q 2.632720870528644 1.5603e-07 au
i 8.382694401000466 7.6536e-06 deg
node 211.9779210017393 3.716e-05 deg
peri 277.3814911292054 4.7671e-05 deg
M 114.9706823840533 2.6619e-05 deg
tp 2458354.191277791581
(2018-Aug-23.69127779)
0.00014766 TDB
period 2023.743228885131
5.54
3.3661e-05
9.216e-08
d
yr
n .1778881801118228 2.9588e-09 deg/d
Q 3.629590394523715 4.0247e-08 au
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      7228 days (19.79 yr)  
   first obs. used      2000-10-07  
   last obs. used      2020-07-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:11:47  

Additional Information
 Earth MOID = 1.66392 au 
 Jupiter MOID = 1.55719 au 
 T_jup = 3.177 
[ 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 MPO433969  

305493 (2008 EQ40)          Discovered 2008-Mar-04 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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