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C/2019 K4 (Ye)
Classification: Comet          SPK-ID: 1003627
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458720.5 (2019-Aug-25.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9990623624159167 1.5939e-05  
a 2409.692270064809 40.972 au
q 2.259418038487705 9.9609e-06 au
i 105.3052826843878 0.00016582 deg
node 180.1651269437695 1.2056e-05 deg
peri 139.7721840494552 0.00057489 deg
M .0005797624188240033 1.4798e-05 deg
tp 2458650.919368965658
(2019-Jun-16.41936897)
0.0014356 TDB
period 43205675.90975085
118290.69
1.1019e+06
3017
d
yr
n 8.332238587170293E-6 2.1251e-07 deg/d
Q 4817.125122091131 81.906 au
  Orbit Determination Parameters
   # obs. used (total)      606  
   data-arc span      222 days  
   first obs. used      2019-04-24  
   last obs. used      2019-12-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .56111  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:33:56  

Additional Information
 Earth MOID = 1.42136 au 
 Jupiter MOID = 2.26014 au 
 T_jup = -0.490 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 12.9   0.6 11 2 parameter fit from 475 observations, autocmod 2.9c
comet total magnitude slope K1 8.25   n/a 11 autocmod 2.9c
comet nuclear magnitude M2 14.6   0.4 11 from 95 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 11 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 11 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2019.5   C/2019 K4       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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