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(2013 EC20)
Classification: Apollo [NEO]          SPK-ID: 3630817
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1209987275634409 2.4999e-06  
a 1.113145861588282 1.4692e-05 au
q .9784566287435899 1.0147e-05 au
i 1.304753351070496 0.00023673 deg
node 165.3566798040725 0.013896 deg
peri 33.900405924556 0.023073 deg
M 205.0318643406743 0.032884 deg
tp 2459385.157286101497
(2021-Jun-19.65728610)
0.035528 TDB
period 428.9696247148379
1.17
0.0084929
2.325e-05
d
yr
n .8392202600342944 1.6615e-05 deg/d
Q 1.247835094432974 1.647e-05 au
  Orbit Determination Parameters
   # obs. used (total)      64  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      12 days  
   first obs. used      2013-03-01  
   last obs. used      2013-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .31771  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 07:48:54  

Additional Information
 Earth MOID = .00121517 au 
 Jupiter MOID = 3.70647 au 
 T_jup = 5.592 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 29.   .50057 14 autocmod 2.9c

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