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254P/McNaught
Classification: Jupiter-family Comet          SPK-ID: 1003106
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 2456749.5 (2014-Apr-02.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3131947593149366 6.0468e-07  
a 4.657707413982717 3.1521e-07 au
q 3.198937861501004 2.6645e-06 au
i 32.61724719769857 2.3227e-05 deg
node 129.8909652278319 4.8369e-05 deg
peri 220.0074091815043 0.00030116 deg
M 123.3350972733609 0.00013139 deg
tp 2455491.615075114801
(2010-Oct-22.11507511)
0.0014556 TDB
period 3671.611592886628
10.05
0.00037272
1.02e-06
d
yr
n .09804958691640019 9.9534e-09 deg/d
Q 6.11647696646443 4.1394e-07 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      6964 days (19.07 yr)  
   first obs. used      2001-10-23  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59615  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-17 00:12:44  

Additional Information
 Earth MOID = 2.25107 au 
 Jupiter MOID = .229554 au 
 T_jup = 2.631 
[ 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 14.3   0.7 26 2 parameter fit from 181 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 26 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2010.8   254P/2010 T1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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