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(2020 HF4)
Classification: Apollo [NEO]          SPK-ID: 54016681
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02444480900537058 3.7507e-06  
a 1.015495607964531 5.4966e-06 au
q .9906720117820448 9.158e-06 au
i 4.834588516859633 0.0054598 deg
node 39.14614890336083 0.0035257 deg
peri 29.44653610533381 0.014141 deg
M 13.51646005748302 0.022981 deg
tp 2459186.466177941988
(2020-Dec-02.96617794)
0.023748 TDB
period 373.7795191491197
1.02
0.0030348
8.309e-06
d
yr
n .963134633003735 7.8198e-06 deg/d
Q 1.040319204147016 5.631e-06 au
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      12 days  
   first obs. used      2020-04-18  
   last obs. used      2020-04-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .6358  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:25:18  

Additional Information
 Earth MOID = .000927879 au 
 Jupiter MOID = 3.95171 au 
 T_jup = 6.004 
[ 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 27.4   .64374 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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