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C/2005 L3 (McNaught)
Classification: Comet          SPK-ID: 1000587
Ephemeris | Orbit Diagram | Orbital Elements | 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 2454729.5 (2008-Sep-20.0) TDB
Reference: JPL 218 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9995866280593779 1.461e-06  
a 13531.70744603458 47.828 au
q 5.593628166897508 1.0223e-06 au
i 139.4492472756613 4.9215e-06 deg
node 288.7398150206444 1.003e-05 deg
peri 47.13387025925456 1.9591e-05 deg
M .000155067120358103 8.2218e-07 deg
tp 2454481.846455677075
(2008-Jan-16.34645568)
0.00020069 TDB
period 574946357.1024146
1574117.34
3.0482e+06
8346
d
yr
n 6.261453708730492E-7 3.3197e-09 deg/d
Q 27057.82126390226 95.636 au
  Orbit Determination Parameters
   # obs. used (total)      5219  
   data-arc span      3464 days (9.48 yr)  
   first obs. used      2004-07-16  
   last obs. used      2014-01-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .60144  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:30:51  

Additional Information
 Earth MOID = 4.71252 au 
 Jupiter MOID = 1.20432 au 
 T_jup = -2.228 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 8.4   1. 218 2 parameter fit from 735 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a 218 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2008.0   C/2005 L3       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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