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C/2016 KA (Catalina)
Classification: Comet          SPK-ID: 1003466
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457548.5 (2016-Jun-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9990191031155012 0.00035239  
a 5506.038482774244 1978.1 au
q 5.40085599368354 0.00018609 au
i 104.6293144185675 0.00023302 deg
node 317.558553674919 0.0019973 deg
peri 63.11247952625934 0.0096082 deg
M .0003101012028596524 0.00016708 deg
tp 2457419.954096651396
(2016-Feb-01.45409665)
0.081148 TDB
period 149230395.6861514
408570.56
8.0421e+07
2.202e+05
d
yr
n 2.412377172524029E-6 1.3e-06 deg/d
Q 11006.6761095548 3954.4 au
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      98 days  
   first obs. used      2016-05-16  
   last obs. used      2016-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   norm. resid. RMS      .54178  
   source      ORB  
   producer      Otto Matic  
   solution date      2016-Oct-25 13:16:13  

Additional Information
 Earth MOID = 4.84491 au 
 Jupiter MOID = 1.98398 au 
 T_jup = -0.727 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 8.8   0.4 12 from 36 observations, assumed slope, autocmod 2.6g
comet total magnitude slope K1 10.   n/a 12 autocmod 2.6g
comet nuclear magnitude M2 12.6   0.4 12 from 24 observations, autocmod 2.6g
comet nuclear magnitude slope K2 5.   n/a 12 autocmod 2.6g
comet nuclear phase coefficient PC 0.03   n/a 12 autocmod 2.6g

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2016.1   C/2016 KA       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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