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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456923.5 (2014-Sep-23.0) TDB
Reference: JPL 92 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5942159440487939 5.6073e-08  
a 3.676238870615387 3.929e-08 au
q 1.491759119563793 2.007e-07 au
i 15.76701869168944 4.312e-06 deg
node 351.8642792438447 1.4082e-05 deg
peri 15.58484575226152 2.9713e-05 deg
M 103.5434657715184 3.1939e-06 deg
tp 2456183.001458164634
(2012-Sep-12.50145816)
3.4097e-05 TDB
period 2574.565889546065
7.05
4.1273e-05
1.13e-07
d
yr
n .1398293986033791 2.2416e-09 deg/d
Q 5.86071862166698 6.2636e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.902896846122704E-10 4.681E-11
A2 [EST] -1.566679857587744E-11 4.214E-13
A3 [EST] 1.016093693661965E-10 2.928E-11
  Orbit Determination Parameters
   # obs. used (total)      6637  
   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      .43931  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 23:13:55  

Additional Information
 Earth MOID = .494645 au 
 Jupiter MOID = .0237276 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 12.8   0.7 92 2 parameter fit from 2897 observations, autocmod 2.9b
comet total magnitude slope K1 12.75   n/a 92 autocmod 2.9b
comet nuclear magnitude M2 15.4   0.7 92 from 3345 observations, autocmod 2.9b
comet nuclear magnitude slope K2 5.   n/a 92 autocmod 2.9b
comet nuclear phase coefficient PC 0.03   n/a 92 autocmod 2.9b

[ 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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