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C/2016 Q4 (Kowalski)
Classification: Chiron-type Comet          SPK-ID: 1003479
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457635.5 (2016-Sep-04.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5781984583314178 0.00063151  
a 16.79353838029159 0.018907 au
q 7.083540378877497 0.0026622 au
i 7.256660923512645 0.00062454 deg
node 271.3284026274644 0.011227 deg
peri 99.49888926182611 0.083721 deg
M 352.6741272158014 0.005247 deg
tp 2458147.027063022418
(2018-Jan-28.52706302)
1.0017 TDB
period 25136.90151503443
68.82
42.451
0.1162
d
yr
n .01432157419181848 2.4186e-05 deg/d
Q 26.50353638170568 0.029839 au
  Orbit Determination Parameters
   # obs. used (total)      81  
   data-arc span      131 days  
   first obs. used      2016-07-11  
   last obs. used      2016-11-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .71486  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:33:26  

Additional Information
 Earth MOID = 6.09212 au 
 Jupiter MOID = 2.29891 au 
 T_jup = 3.218 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 7.0   0.9 4 from 57 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 10.   n/a 4 autocmod 2.9c
comet nuclear magnitude M2 11.2   0.5 4 from 21 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 4 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 4 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2018.1   C/2016 Q4       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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