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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 2456903.5 (2014-Sep-03.0) TDB
Reference: JPL 90 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .594171932669438 5.7362e-08  
a 3.676528389086429 4.046e-08 au
q 1.49203841062889 2.0483e-07 au
i 15.76546651707112 4.3472e-06 deg
node 351.8654579928459 1.4289e-05 deg
peri 15.59134411518046 3.0384e-05 deg
M 100.7353587307368 3.2686e-06 deg
tp 2456182.998732468944
(2012-Sep-12.49873247)
3.4671e-05 TDB
period 2574.870031529821
7.05
4.2505e-05
1.164e-07
d
yr
n .1398128820452003 2.308e-09 deg/d
Q 5.861018367543968 6.45e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 2.076889348793177E-10 4.709E-11
A2 [EST] -1.596459322992236E-11 4.315E-13
A3 [EST] 9.981913289438442E-11 2.946E-11
  Orbit Determination Parameters
   # obs. used (total)      6577  
   data-arc span      5394 days (14.77 yr)  
   first obs. used      2005-05-20  
   last obs. used      2020-02-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-26 12:45:31  

Additional Information
 Earth MOID = .495116 au 
 Jupiter MOID = .0237573 au 
 T_jup = 2.717 
[ 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 90 2 parameter fit from 2839 observations, autocmod 2.8
comet total magnitude slope K1 13.   n/a 90 autocmod 2.8
comet nuclear magnitude M2 15.4   0.7 90 from 3345 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 90 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 90 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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