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(2020 HW3)
Classification: Apollo [NEO]          SPK-ID: 54016676
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5460787364165191 5.888e-07  
a 1.15494311590506 2.7519e-06 au
q .5242532385386677 9.4094e-07 au
i 45.72975158672463 7.5391e-05 deg
node 213.9174080050575 3.7595e-06 deg
peri 114.8040804398679 0.00018181 deg
M 341.1303890497309 0.00011482 deg
tp 2459024.262917707298
(2020-Jun-23.76291771)
6.191e-05 TDB
period 453.3559487354154
1.24
0.0016203
4.436e-06
d
yr
n .7940780329544123 2.8381e-06 deg/d
Q 1.785632993271453 4.2547e-06 au
  Orbit Determination Parameters
   # obs. used (total)      163  
   # delay obs. used      1  
   # Doppler obs. used      2  
   data-arc span      7 days  
   first obs. used      2020-04-20  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .34788  
   source      ORB  
   producer      Giorgini  
   solution date      2020-May-02 21:15:18  

Additional Information
 Earth MOID = .0332741 au 
 Jupiter MOID = 4.12562 au 
 T_jup = 5.056 
[ 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 22.066   .39126 8 autocmod 2.8

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