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(2013 GR38)
Classification: Apollo [NEO, PHA]          SPK-ID: 3634388
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5564783890573247 6.8999e-07  
a 1.789980280459774 2.2598e-06 au
q .7938949375451405 2.4306e-07 au
i 4.588173838720749 1.0166e-05 deg
node 218.6768771305515 2.6463e-05 deg
peri 68.37225603259132 2.9307e-05 deg
M 324.6066304591937 0.0019758 deg
tp 2459086.498367370864
(2020-Aug-24.99836737)
0.0049637 TDB
period 874.7235048591989
2.39
0.0016565
4.535e-06
d
yr
n .411558621667481 7.7938e-07 deg/d
Q 2.786065623374407 3.5174e-06 au
  Orbit Determination Parameters
   # obs. used (total)      156  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      249 days  
   first obs. used      2013-03-05  
   last obs. used      2013-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .51075  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Mar-20 04:42:04  

Additional Information
 Earth MOID = .00321322 au 
 Jupiter MOID = 2.42959 au 
 T_jup = 3.878 
[ 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 21.9   n/a MPO466426  

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