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C/2012 Q1 (Kowalski)
Classification: Jupiter-family Comet          SPK-ID: 1003202
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456322.5 (2013-Jan-30.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6371248046829634 3.1853e-05  
a 26.13083835627589 0.0024998 au
q 9.482233072331526 7.8197e-05 au
i 45.18265072196867 8.944e-05 deg
node 184.4372917191307 6.7037e-05 deg
peri 139.2424263814257 0.0012127 deg
M 2.623875998441565 0.00057312 deg
tp 2455966.893862351823
(2012-Feb-09.39386235)
0.028182 TDB
period 48789.73306260636
133.58
7.0012
0.01917
d
yr
n .007378601550003411 1.0588e-06 deg/d
Q 42.77944364022026 0.0040925 au
  Orbit Determination Parameters
   # obs. used (total)      196  
   data-arc span      2322 days (6.36 yr)  
   first obs. used      2011-04-13  
   last obs. used      2017-08-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      3  
   norm. resid. RMS      .68785  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:32:20  

Additional Information
 Earth MOID = 8.58888 au 
 Jupiter MOID = 5.09454 au 
 T_jup = 2.634 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 6.6   0.9 30 from 75 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 8.25   n/a 30 autocmod 2.9c
comet nuclear magnitude M2 9.3   0.7 30 from 106 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 30 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 30 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2012.1   C/2012 Q1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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