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396P/Leonard (2020 F1)
Classification: Jupiter-family Comet          SPK-ID: 1003664
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 2457980.5 (2017-Aug-15.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4181318189136688 7.0349e-07  
a 6.84579724829032 6.3039e-07 au
q 3.9833515929485 4.59e-06 au
i 5.433585120431198 7.1573e-05 deg
node 136.6741472164793 0.00053853 deg
peri 8.634945348104855 0.0034629 deg
M 319.0707237293207 0.0014062 deg
tp 2458724.316897618897
(2019-Aug-28.81689762)
0.025645 TDB
period 6542.360567822441
17.91
0.00090367
2.474e-06
d
yr
n .05502601030132804 7.6006e-09 deg/d
Q 9.70824290363214 8.9398e-07 au
  Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      6622 days (18.13 yr)  
   first obs. used      2002-03-05  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .4245  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:09:52  

Additional Information
 Earth MOID = 2.99586 au 
 Jupiter MOID = .378821 au 
 T_jup = 2.835 
[ 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
comet total magnitude M1 15.6   0.7 7 2 parameter fit from 107 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 7 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2019.7   396P/2020 F1       
 2001.7   396P/2002 E4       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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