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JPL Small-Body Database Browser
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260P/McNaught
Classification: Jupiter-family Comet          SPK-ID: 1000584
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 2456586.5 (2013-Oct-21.0) TDB
Reference: JPL 80 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5937521254542183 4.7525e-08  
a 3.681215894335621 4.8533e-08 au
q 1.495486132817995 1.6433e-07 au
i 15.74406574009192 4.9518e-06 deg
node 351.8994177638065 1.1651e-05 deg
peri 15.67644140264002 2.8664e-05 deg
M 56.30675918793691 4.3946e-06 deg
tp 2456183.000138012572
(2012-Sep-12.50013801)
3.9301e-05 TDB
period 2579.795967845267
7.06
5.1017e-05
1.397e-07
d
yr
n .1395459193234898 2.7596e-09 deg/d
Q 5.866945655853248 7.7349e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -1.644165575520314E-11 4.419E-13
  Orbit Determination Parameters
   # obs. used (total)      5134  
   data-arc span      5281 days (14.46 yr)  
   first obs. used      2005-05-20  
   last obs. used      2019-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46231  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:50:55  

Additional Information
 Earth MOID = .49867 au 
 Jupiter MOID = .0237081 au 
 T_jup = 2.716 
[ 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   0.8 80 2 parameter fit from 1592 observations, autocmod 2.8
comet total magnitude slope K1 15.   n/a 80 autocmod 2.8
comet nuclear magnitude M2 15.4   0.7 80 from 3196 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 80 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 80 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2012.7   260P/2012 K2       
 2005.6   260P/2005 K3       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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