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187P/LINEAR
Classification: Jupiter-family Comet          SPK-ID: 1000262
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2455601.5 (2011-Feb-09.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1731823596752446 4.3785e-07  
a 4.49352753361892 1.4513e-07 au
q 3.715327832081113 1.964e-06 au
i 13.65508617752476 1.5801e-05 deg
node 111.7360926554964 9.8567e-05 deg
peri 134.7358148392383 0.00017045 deg
M 86.85610232585272 7.4424e-05 deg
tp 2454762.083748198799
(2008-Oct-22.58374820)		 0.00073722 TDB
period 3479.201144839833
9.53		 0.00016856
4.615e-07		 d
yr
n .1034720284953726 5.0129e-09 deg/d
Q 5.271727235156726 1.7027e-07 au
   Orbit Determination Parameters
   # obs. used (total)      296  
   data-arc span      7798 days (21.35 yr)  
   first obs. used      1999-05-12  
   last obs. used      2020-09-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .79848  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-24 20:19:22  

Additional Information
 Earth MOID = 2.71922 au 
 Jupiter MOID = .216859 au 
 T_jup = 2.937 
[ 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 7.3   0.9 40 from 159 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 16.75   n/a 40 autocmod 2.8
comet nuclear magnitude M2 13.9   0.8 40 from 93 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 40 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 40 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year (est.)		  New-Style 
Desig		 Roman
 Numeral 		 Year/
 Letter 
 2008.8   187P/2007 E3       
 1999.3   187P/1999 J5       
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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