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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 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .629922217478288 1.344e-07  
a 2.86746864960745 9.9685e-08 au
q 1.061186439297253 4.1206e-07 au
i 25.55595010958105 1.7379e-05 deg
node 66.39570290701492 5.7338e-05 deg
peri 188.7502286652151 7.5022e-05 deg
M 230.2951605220061 1.0595e-05 deg
tp 2454605.498920176659
(2008-May-18.99892018)
3.1869e-05 TDB
period 1773.562283330426
4.86
9.2484e-05
2.532e-07
d
yr
n .2029813124600201 1.0585e-08 deg/d
Q 4.673750859917647 1.6248e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -5.216315762248343E-11 1.118E-10
A2 [EST] 1.683324056526035E-11 7.433E-13
A3 [EST] 9.04715992822445E-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .93227  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:27:52  

Additional Information
 Earth MOID = .0519932 au 
 Jupiter MOID = .451512 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 48 2 parameter fit from 121 observations, autocmod 2.9c
comet total magnitude slope K1 6.75   n/a 48 autocmod 2.9c
comet nuclear magnitude M2 20.1   0.6 48 from 130 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 48 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 48 autocmod 2.9c

[ 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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