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(2017 SR2)
Classification: Apollo [NEO]          SPK-ID: 3781612
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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5402374970902435 0.00019823  
a 2.044300377495877 0.00088182 au
q .9398926582568646 9.5454e-06 au
i .9163759012168332 0.00019274 deg
node 358.2229296579158 0.00031019 deg
peri 35.68455012498575 0.0047155 deg
M 322.2663049995526 0.20533 deg
tp 2459112.403153167661
(2020-Sep-19.90315317)
0.68133 TDB
period 1067.61702345557
2.92
0.69078
0.001891
d
yr
n .3371995688442501 0.00021818 deg/d
Q 3.14870809673489 0.0013582 au
  Orbit Determination Parameters
   # obs. used (total)      23  
   first obs. used      2017-09-20  
   last obs. used      2017-09-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .30151  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Sep-21 06:20:49  

Additional Information
 Earth MOID = .000227898 au 
 Jupiter MOID = 2.29675 au 
 T_jup = 3.600 
[ 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 28.6   n/a MPO416670  

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