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204P/LINEAR-NEAT
Classification: Jupiter-family Comet          SPK-ID: 1000361
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454757.5 (2008-Oct-18.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4705293233791104 5.6724e-07  
a 3.664462563285444 2.2607e-06 au
q 1.940225472834664 1.9724e-06 au
i 6.581224664404781 1.6736e-05 deg
node 109.1066822496268 4.7901e-05 deg
peri 355.0404917170418 0.00036531 deg
M 352.6551712789477 0.00011691 deg
tp 2454809.774878561700
(2008-Dec-09.27487856)
0.00081961 TDB
period 2562.204919533627
7.01
0.002371
6.491e-06
d
yr
n .1405039843829226 1.3002e-07 deg/d
Q 5.388699653736225 3.3244e-06 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.080712377703343E-9 7.367E-10
A2 [EST] -2.05507690784695E-10 1.161E-12
  Orbit Determination Parameters
   # obs. used (total)      1239  
   data-arc span      5315 days (14.55 yr)  
   first obs. used      2001-10-13  
   last obs. used      2016-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .78275  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-28 16:17:46  

Additional Information
 Earth MOID = .957336 au 
 Jupiter MOID = .101693 au 
 T_jup = 2.891 
[ 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 12.5   1. 48 from 582 observations, assumed slope, autocmod 2.6m
comet total magnitude slope K1 16.   n/a 48 autocmod 2.6m
comet nuclear magnitude M2 16.2   1. 48 from 544 observations, autocmod 2.6m
comet nuclear magnitude slope K2 5.   n/a 48 autocmod 2.6m
comet nuclear phase coefficient PC 0.03   n/a 48 autocmod 2.6m

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2008.9   204P/2008 R5       
 2001.9   204P/2001 TU80       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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