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197P/LINEAR
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000441
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2453966.5 (2006-Aug-19.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6299222172254441 1.344e-07  
a 2.867468649562094 9.9685e-08 au
q 1.06118644000549 4.1206e-07 au
i 25.55595010483065 1.7379e-05 deg
node 66.39570294129254 5.7338e-05 deg
peri 188.7502286463079 7.5022e-05 deg
M 230.2951605082497 1.0595e-05 deg
tp 2454605.498920229270
(2008-May-18.99892023)
3.1869e-05 TDB
period 1773.562283288347
4.86
9.2484e-05
2.532e-07
d
yr
n .202981312464836 1.0585e-08 deg/d
Q 4.673750859118699 1.6248e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -5.21928531086191E-11 1.118E-10
A2 [EST] 1.683771776432625E-11 7.433E-13
A3 [EST] 9.056635685590505E-11 8.569E-11
  Orbit Determination Parameters
   # obs. used (total)      323  
   data-arc span      3778 days (10.34 yr)  
   first obs. used      2003-05-23  
   last obs. used      2013-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .93226  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 11:13:14  

Additional Information
 Earth MOID = .0519932 au 
 Jupiter MOID = .451513 au 
 T_jup = 2.855 
[ 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 18.2   0.7 47 2 parameter fit from 121 observations, autocmod 2.8
comet total magnitude slope K1 6.75   n/a 47 autocmod 2.8
comet nuclear magnitude M2 20.1   0.6 47 from 130 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 47 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 47 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2008.4   197P/2008 E2       
 2003.5   197P/2003 KV2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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