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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 ]

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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.


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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 
[ hide covariance matrix ]
Orbit Covariance (8×8)
  e q tp node peri i A1 A2
e 3.217556223459982E-13 -9.248529046015218E-13 -3.978993681363832E-10 -8.305038310971966E-12 -1.7836646811631E-10 -2.077892933317599E-12 -1.583619299888392E-16 -2.830488911857758E-19
q -9.248529046015218E-13 3.8902756559319E-12 1.231670447513019E-9 3.249392364920851E-11 5.541224703243925E-10 1.037223015879628E-11 -3.01481402460248E-16 1.192696397087436E-18
tp -3.978993681363832E-10 1.231670447513019E-9 6.717641366349397E-7 1.154650515528308E-8 2.970246726863325E-7 1.580049009117198E-9 1.424082717703445E-13 4.936935832909245E-16
node -8.305038310971966E-12 3.249392364920851E-11 1.154650515528308E-8 2.294517093541522E-9 3.167780998060377E-9 5.181208977374949E-10 -1.20671199189724E-15 1.019218079868887E-17
peri -1.7836646811631E-10 5.541224703243925E-10 2.970246726863325E-7 3.167780998060377E-9 1.334511688495991E-7 3.113651861748284E-10 6.25816494336515E-14 2.24076435371763E-16
i -2.077892933317599E-12 1.037223015879628E-11 1.580049009117198E-9 5.181208977374949E-10 3.113651861748284E-10 2.800771944928843E-10 -1.683746996454428E-15 2.203982618368291E-18
A1 -1.583619299888392E-16 -3.01481402460248E-16 1.424082717703445E-13 -1.20671199189724E-15 6.25816494336515E-14 -1.683746996454428E-15 5.427509303680503E-19 -9.558557577560599E-23
A2 -2.830488911857758E-19 1.192696397087436E-18 4.936935832909245E-16 1.019218079868887E-17 2.24076435371763E-16 2.203982618368291E-18 -9.558557577560599E-23 1.348451535368014E-24

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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