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(2021 JU4)
Classification: Amor [NEO]          SPK-ID: 54144928
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1890905244548322 0.00042912  
a 1.270235796881102 0.00071009 au
q 1.030046243867552 3.0733e-05 au
i 15.04065655042212 0.020567 deg
node 45.24204969983198 0.00386 deg
peri 185.2024683411919 0.0046383 deg
M 258.4100144504055 0.082615 deg
tp 2459348.061596730480
(2021-May-13.56159673)
0.003743 TDB
period 522.9075930623055
1.43
0.43848
0.0012
d
yr
n .6884581612053686 0.0005773 deg/d
Q 1.510425349894651 0.00084436 au
  Orbit Determination Parameters
   # obs. used (total)      94  
   data-arc span      11 days  
   first obs. used      2021-05-06  
   last obs. used      2021-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .74685  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-19 06:23:08  

Additional Information
 Earth MOID = .0205881 au 
 Jupiter MOID = 3.47185 au 
 T_jup = 5.033 
[ 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 24.668   .2441 4 autocmod 2.9c

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