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(2020 HL)
Classification: Apollo [NEO]          SPK-ID: 54016550
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 2458960.5 (2020-Apr-21.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4036965224991124 0.0018016  
a 1.52156569092496 0.0039983 au
q .9073149127445943 0.00035706 au
i 5.014517214045207 0.020404 deg
node 18.82414682952827 0.0019318 deg
peri 255.4255002981931 0.008059 deg
M 331.376509572904 0.12848 deg
tp 2459015.007288501355
(2020-Jun-14.50728850)
0.029813 TDB
period 685.5426633053931
1.88
2.7022
0.007398
d
yr
n .5251314313017867 0.0020699 deg/d
Q 2.135816469105326 0.0056125 au
  Orbit Determination Parameters
   # obs. used (total)      30  
   data-arc span      10 days  
   first obs. used      2020-04-16  
   last obs. used      2020-04-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .68589  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:25:01  

Additional Information
 Earth MOID = .0372212 au 
 Jupiter MOID = 3.00874 au 
 T_jup = 4.405 
[ 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 25.0   .4213 E2020-QF4 autocmod 2.8

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