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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 ]

[ hide orbit diagram ]

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 2457980.5 (2017-Aug-15.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4181318187370227 7.0349e-07  
a 6.845797245864051 6.3039e-07 au
q 3.983351592746015 4.59e-06 au
i 5.433585113808016 7.1573e-05 deg
node 136.6741471411291 0.00053853 deg
peri 8.634944813945031 0.0034629 deg
M 319.0707239519149 0.0014062 deg
tp 2458724.316893178210
(2019-Aug-28.81689318)
0.025645 TDB
period 6542.360564344352
17.91
0.00090367
2.474e-06
d
yr
n .0550260103305813 7.6005e-09 deg/d
Q 9.708242898982087 8.9397e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .4245  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:28:45  

Additional Information
 Earth MOID = 2.99586 au 
 Jupiter MOID = .378821 au 
 T_jup = 2.835 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 4.948990903195103E-13 -3.222934689845053E-12 1.332884502170956E-8 3.37142620483927E-11 1.765156404879084E-9 -4.090078871968831E-12
q -3.222934689845053E-12 2.106824224658623E-11 -8.293605841625882E-8 -2.087634023048448E-10 -1.097627663148034E-8 2.591219653173697E-11
tp 1.332884502170956E-8 -8.293605841625882E-8 .0006576875416815412 1.727708617210495E-6 8.774963495921314E-5 -1.694369013419168E-7
node 3.37142620483927E-11 -2.087634023048448E-10 1.727708617210495E-6 2.900127173219552E-7 -5.359107558445126E-8 3.254163063184862E-8
peri 1.765156404879084E-9 -1.097627663148034E-8 8.774963495921314E-5 -5.359107558445126E-8 1.199183823986255E-5 -5.540355723409971E-8
i -4.090078871968831E-12 2.591219653173697E-11 -1.694369013419168E-7 3.254163063184862E-8 -5.540355723409971E-8 5.122635078462386E-9

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 8 2 parameter fit from 107 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a 8 autocmod 2.9c

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1936-May-08 02:40 3_01:51 Saturn 0.00688572906220594 0.00468439482329481 0.00945293291341233 8.80061216582727 1.94581646282476 2428296.611291779 4430.77134310506 283314.875637364 409.037923004799 -8.15214020107819 13.0415606626689 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 23:28:45 2021-Apr-15 23:28
1944-Feb-02 17:13 7_00:19 Jupiter 0.909893060282035 0.907455150887997 0.912353945035335 4.27041211051623 4.04655567917849 2431123.217686556 10099.1990791218 264226.087720471 570.320803410072 -64.1360358889892 125515.807281804 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 23:28:45 2021-Apr-15 23:28
1995-Mar-19 04:44 11:25 Saturn 0.692439516387433 0.691443276434482 0.693435691675987 2.97949911846732 2.85392409298458 2449795.697110820 685.174801220064 48451.788745789 550.2073331769 -1.82396729136306 3768.10109494756 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 23:28:45 2021-Apr-15 23:28
2083-Apr-03 08:32 09:49 Saturn 1.09461995172333 1.0940078185548 1.09523207153767 3.022436494309 2.94478078458572 2481952.855317540 588.875397812551 29896.4424536117 501.397481881323 -7.64774681191416 26376.6055980671 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 23:28:45 2021-Apr-15 23:28
2125-Mar-28 02:29 13:07 Jupiter 0.507087436275753 0.505483415725873 0.508700603673741 5.46191332020786 5.14701482157457 2497286.603506100 786.613404937137 136919.119275317 1155.54598496213 52.1188089119451 63272.7846492504 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 23:28:45 2021-Apr-15 23:28
2173-May-26 06:47 3_19:27 Jupiter 1.97816131377374 1.9473177696981 2.00903240680941 10.7508005733823 10.7108981612611 2514877.782381377 5487.24472786099 1582300.14558691 966.834243685959 -14.2938668207704 52169.8222135059 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 23:28:45 2021-Apr-15 23:28

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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