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C/2019 JU6 (ATLAS)
Classification: Comet          SPK-ID: 1003626
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458622.5 (2019-May-19.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9935472046794304 0.0031614  
a 316.898660790065 155.33 au
q 2.044882195440916 0.00048868 au
i 148.297910824992 0.0033957 deg
node 21.72924348472905 0.015139 deg
peri 94.86862584655267 0.027285 deg
M 359.9977485724064 0.0016392 deg
tp 2458635.386486301618
(2019-May-31.88648630)
0.093471 TDB
period 2060530.430422936
5641.42
1.515e+06
4148
d
yr
n .0001747122947978535 0.00012846 deg/d
Q 631.752439384689 309.66 au
  Orbit Determination Parameters
   # obs. used (total)      70  
   data-arc span      23 days  
   first obs. used      2019-05-12  
   last obs. used      2019-06-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .44466  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:33:54  

Additional Information
 Earth MOID = 1.29117 au 
 Jupiter MOID = .127336 au 
 T_jup = -1.490 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a E2019-JE1  
comet total magnitude M1 14.5   0.7 8 from 57 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 10.   n/a 8 autocmod 2.9c
comet nuclear magnitude M2 18.1   0.1 8 from 4 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 8 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 8 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2019.4   C/2019 JU6       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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