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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 2456445.5 (2013-Jun-02.0) TDB
Reference: JPL 78 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5936766086549832 4.9702e-08  
a 3.683249969246321 4.9154e-08 au
q 1.496590618675594 1.7333e-07 au
i 15.73695498780388 5.1413e-06 deg
node 351.9272662183533 1.1716e-05 deg
peri 15.70034759828638 2.8787e-05 deg
M 36.59850621756598 4.811e-06 deg
tp 2456183.014041067324
(2012-Sep-12.51404107)
3.9657e-05 TDB
period 2581.934482626757
7.07
5.1685e-05
1.415e-07
d
yr
n .1394303389270166 2.7911e-09 deg/d
Q 5.869909319817047 7.8335e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -1.656071143585031E-11 4.44E-13
  Orbit Determination Parameters
   # obs. used (total)      4811  
   data-arc span      5254 days (14.38 yr)  
   first obs. used      2005-05-20  
   last obs. used      2019-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46172  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Oct-09 09:50:53  

Additional Information
 Earth MOID = .499046 au 
 Jupiter MOID = .0233674 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 12.7   0.7 78 2 parameter fit from 1381 observations, autocmod 2.8
comet total magnitude slope K1 14.   n/a 78 autocmod 2.8
comet nuclear magnitude M2 15.4   0.7 78 from 3102 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 78 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 78 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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