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(2021 JE2)
Classification: Apollo [NEO]          SPK-ID: 54143570
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 2459342.5 (2021-May-08.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .542830950791546 0.0012357  
a 1.915517685272375 0.0047253 au
q .8757153989179504 0.0002067 au
i 3.574541081246692 0.0073171 deg
node 207.0269409025166 0.0034859 deg
peri 81.5981166934554 0.0011922 deg
M 342.2492835642626 0.073648 deg
tp 2459390.246447202660
(2021-Jun-24.74644720)
0.021425 TDB
period 968.3395628106417
2.65
3.5831
0.00981
d
yr
n .3717704138361202 0.0013757 deg/d
Q 2.955319971626799 0.0072903 au
  Orbit Determination Parameters
   # obs. used (total)      44  
   data-arc span      14 days  
   first obs. used      2021-05-01  
   last obs. used      2021-05-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .5883  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-16 05:50:31  

Additional Information
 Earth MOID = .0309665 au 
 Jupiter MOID = 2.26463 au 
 T_jup = 3.734 
[ 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 25.433   .33472 8 autocmod 2.9c

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