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311254 (2005 EW38)
Classification: Main-belt Asteroid          SPK-ID: 2311254
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1556232248852496 3.2884e-08  
a 2.371599718974895 1.5209e-08 au
q 2.00252372257107 7.9669e-08 au
i 7.066208687126196 4.3715e-06 deg
node 124.8876601327827 4.3321e-05 deg
peri 330.0873255637199 4.7782e-05 deg
M 117.0888539146929 2.0875e-05 deg
tp 2458566.616068729075
(2019-Mar-24.11606873)
7.544e-05 TDB
period 1334.014383395828
3.65
1.2832e-05
3.513e-08
d
yr
n .2698621577704391 2.5958e-09 deg/d
Q 2.74067571537872 1.7575e-08 au
  Orbit Determination Parameters
   # obs. used (total)      276  
   data-arc span      7054 days (19.31 yr)  
   first obs. used      2001-01-03  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59417  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:23:38  

Additional Information
 Earth MOID = 1.02272 au 
 Jupiter MOID = 2.4235 au 
 T_jup = 3.518 
[ 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 17.0   n/a MPO455294  

311254 (2005 EW38)          Discovered 2005-Mar-08 by Lowe, A. at Mayhill
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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