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209P/LINEAR
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000487
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454945.5 (2009-Apr-24.0) TDB
Reference: JPL 92 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6889627134577714 4.2897e-08  
a 2.937606577013568 1.0222e-08 AU
q .9137051786429045 1.2586e-07 AU
i 19.14869204150267 8.4483e-06 deg
node 66.44791592906684 2.2998e-05 deg
peri 149.7331152201804 2.5678e-05 deg
M 1.570815856122862 3.5017e-06 deg
tp 2454937.475616977878
(2009-Apr-15.97561698)
1.7858e-05 JED
period 1839.030257241033
5.03
9.5991e-06
2.628e-08
d
yr
n .1957553436559998 1.0218e-09 deg/d
Q 4.961507975384231 1.7265e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1061  
   data-arc span      3782 days (10.35 yr)  
   first obs. used      2003-12-03  
   last obs. used      2014-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .43141  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:40:25  

Additional Information
 Earth MOID = .0384272 AU 
 T_jup = 2.800 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 16.3 mag 1. 92 from 169 observations, assumed slope, autocmod 2.5c
comet total magnitude slope K1 14.   n/a 92 autocmod 2.5c
comet nuclear magnitude M2 19.8 mag 0.9 92 from 788 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 92 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 92 autocmod 2.5c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2009.3   209P/2008 X2       
 2004.3   209P/2004 CB       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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