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158P/Kowal-LINEAR
Classification: Jupiter-family Comet          SPK-ID: 1000468
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455297.5 (2010-Apr-11.0) TDB
Reference: JPL 126 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02957607545062476 1.0258e-07  
a 4.719289787662553 1.3284e-07 au
q 4.579711716829282 5.1603e-07 au
i 7.90848396337982 9.5266e-06 deg
node 137.3091496915609 7.2217e-05 deg
peri 231.5668548181164 0.00017064 deg
M 274.583160724909 0.00015549 deg
tp 2456185.993780433195
(2012-Sep-15.49378043)
0.0016241 TDB
period 3744.668658668408
10.25
0.00015811
4.329e-07
d
yr
n .09613667665005503 4.0592e-09 deg/d
Q 4.858867858495823 1.3677e-07 au
  Orbit Determination Parameters
   # obs. used (total)      821  
   data-arc span      14611 days (40.00 yr)  
   first obs. used      1979-07-24  
   last obs. used      2019-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .80357  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:06:30  

Additional Information
 Earth MOID = 3.5816 au 
 Jupiter MOID = .411301 au 
 T_jup = 2.988 
[ 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 5.5   0.6 126 from 481 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 16.   n/a 126 autocmod 2.8
comet nuclear magnitude M2 12.7   0.6 126 from 285 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 126 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 126 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2002.5   158P/2001 RG100       
 1981.9   158P/1979 O1       1979h 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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