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308218 (2005 EQ149)
Classification: Main-belt Asteroid          SPK-ID: 2308218
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1079277265352182 8.1758e-08  
a 2.582307750137089 2.9075e-08 au
q 2.303605145450519 1.9904e-07 au
i 10.96832986655328 6.9358e-06 deg
node 26.81929488441494 3.6259e-05 deg
peri 249.7042088665928 4.7274e-05 deg
M 164.0464286411963 3.4179e-05 deg
tp 2458309.823460876370
(2018-Jul-10.32346088)
0.00013803 TDB
period 1515.690138115363
4.15
2.5599e-05
7.009e-08
d
yr
n .2375155653170842 4.0115e-09 deg/d
Q 2.86101035482366 3.2214e-08 au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      7794 days (21.34 yr)  
   first obs. used      1998-09-17  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57063  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:15:52  

Additional Information
 Earth MOID = 1.31507 au 
 Jupiter MOID = 2.26893 au 
 T_jup = 3.390 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO408221  

308218 (2005 EQ149)          Discovered 2005-Mar-10 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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