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C/2020 K8 (Catalina-ATLAS)
Classification: Comet          SPK-ID: 1003696
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 2459020.5 (2020-Jun-20.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9999970236811517 0.00026273  
a 159409.4312541255 1.4072e+07 au
q .4744532948334932 0.0001645 au
i 31.41623118980053 0.0034167 deg
node 181.5093410076898 0.011291 deg
peri 260.0824260215895 0.026865 deg
M 359.999998660189 0.00017741 deg
tp 2459107.018797319437
(2020-Sep-14.51879732)
0.0015665 TDB
period 23247135410.66412
63647187.98
3.0782e+12
8.428e+09
d
yr
n 1.548577894181568E-8 2.0505e-06 deg/d
Q 318818.3880549561 2.8144e+07 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      48 days  
   first obs. used      2020-05-25  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .59283  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-20 08:42:46  

Additional Information
 Earth MOID = .0593822 au 
 Jupiter MOID = 1.87067 au 
 T_jup = 0.729 
[ 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 16.3   0.6 8 2 parameter fit from 136 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 8 autocmod 2.8
comet nuclear magnitude M2 17.2   0.08 8 from 3 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 8 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 8 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2020.7   C/2020 K8       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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