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(2017 SE20)
Classification: Aten [NEO]          SPK-ID: 3781990
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3704301311041573 0.00057585  
a .7545007141627588 0.000268 au
q .4750109156972677 0.0006032 au
i 7.309250739393722 0.017658 deg
node 4.590909768484051 0.0043355 deg
peri 192.354034390617 0.00080552 deg
M 182.7722966760438 0.73981 deg
tp 2459118.346589482634
(2020-Sep-25.84658948)
0.55472 TDB
period 239.3800259105064
0.66
0.12754
0.0003492
d
yr
n 1.503884873563294 0.00080127 deg/d
Q 1.03399051262825 0.00036728 au
  Orbit Determination Parameters
   # obs. used (total)      23  
   data-arc span      4 days  
   first obs. used      2017-09-26  
   last obs. used      2017-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .47895  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Sep-30 12:12:06  

Additional Information
 Earth MOID = .0114955 au 
 Jupiter MOID = 3.92255 au 
 T_jup = 7.598 
[ 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 27.9   n/a MPO416698  

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