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(2021 JA2)
Classification: Apollo [NEO]          SPK-ID: 54143567
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 2459340.5 (2021-May-06.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3630324381923833 0.001364  
a 1.555722491567279 0.003321 au
q .9909447623028802 7.4803e-06 au
i 21.34313638388745 0.045445 deg
node 46.85962720367825 0.0031542 deg
peri 212.7168856495152 0.020725 deg
M 343.8834798082867 0.067733 deg
tp 2459372.229658541451
(2021-Jun-06.72965854)
0.031754 TDB
period 708.7557946159859
1.94
2.2694
0.006213
d
yr
n .5079323551704479 0.0016264 deg/d
Q 2.120500220831678 0.0045266 au
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      3 days  
   first obs. used      2021-05-05  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .39573  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-08 05:50:56  

Additional Information
 Earth MOID = .023322 au 
 Jupiter MOID = 2.9815 au 
 T_jup = 4.294 
[ 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 25.95   .28189 MPO622841 autocmod 2.9c

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