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(2020 HJ6)
Classification: Apollo [NEO]          SPK-ID: 54016756
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6848147012577636 2.5566e-06  
a 2.526170151799233 1.8902e-05 au
q .796211693968562 7.1408e-07 au
i .951973941199435 2.1889e-05 deg
node 52.5550140719742 0.00040793 deg
peri 227.17637196769 0.00041191 deg
M 358.0511002894983 3.5072e-05 deg
tp 2459008.439247048846
(2020-Jun-07.93924705)
5.7795e-05 TDB
period 1466.53464115338
4.02
0.01646
4.507e-05
d
yr
n .2454766426225515 2.7552e-06 deg/d
Q 4.256128609629904 3.1847e-05 au
  Orbit Determination Parameters
   # obs. used (total)      42  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      9 days  
   first obs. used      2020-04-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .35675  
   source      ORB  
   producer      Giorgini  
   solution date      2020-Apr-28 11:57:17  

Additional Information
 Earth MOID = .00396886 au 
 Jupiter MOID = .924085 au 
 T_jup = 3.075 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458961.5 (2020-Apr-22.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .683777939566825 2.565e-06  
q .7954400017731802 7.1251e-07 au
tp 2459008.529979054864
(2020-Jun-08.02997905)
5.9265e-05 TDB
node 54.41641305748006 0.00049866 deg
peri 225.4755271560424 0.00050562 deg
i .8410631626225612 2.1197e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      42  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      9 days  
   first obs. used      2020-04-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .35675  
   source      ORB  
   producer      Giorgini  
   solution date      2020-Apr-28 11:57:17  

Additional Information
 Jupiter MOID = .924085 au 
 T_jup = 3.075 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.579136517680417E-12 -1.309370691831906E-12 -1.29094883056241E-10 3.894231976365449E-10 -3.835234942421349E-10 -1.120134814096405E-11
q -1.309370691831906E-12 5.07665353161582E-13 1.015077252385106E-11 -7.299919165947133E-11 3.393471270910408E-11 1.879219330093976E-12
tp -1.29094883056241E-10 1.015077252385106E-11 3.512364894081397E-9 -8.244994627472675E-9 1.051479818757793E-8 2.541033215281894E-10
node 3.894231976365449E-10 -7.299919165947133E-11 -8.244994627472675E-9 2.486659370327161E-7 -2.492486747929087E-7 -1.043707147235299E-8
peri -3.835234942421349E-10 3.393471270910408E-11 1.051479818757793E-8 -2.492486747929087E-7 2.556508493216127E-7 1.048980909594504E-8
i -1.120134814096405E-11 1.879219330093976E-12 2.541033215281894E-10 -1.043707147235299E-8 1.048980909594504E-8 4.493250980552235E-10

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 26.663   .50813 3 autocmod 2.8

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