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372P/McNaught
Classification: Jupiter-family Comet          SPK-ID: 1002510
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454936.5 (2009-Apr-15.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1535045617883468 2.7632e-07  
a 4.493537256093909 3.923e-07 au
q 3.803758788717603 1.188e-06 au
i 9.518531662903435 2.732e-05 deg
node 325.8600836016958 7.1501e-05 deg
peri 27.4551407165061 0.00096561 deg
M 359.3231978070302 0.00072574 deg
tp 2454943.040940574661
(2009-Apr-21.54094057)
0.0070137 TDB
period 3479.212436569154
9.53
0.00045562
1.247e-06
d
yr
n .1034716926785291 1.355e-08 deg/d
Q 5.183315723470215 4.5252e-07 au
  Orbit Determination Parameters
   # obs. used (total)      438  
   data-arc span      4131 days (11.31 yr)  
   first obs. used      2008-07-28  
   last obs. used      2019-11-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .69541  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-16 22:44:30  

Additional Information
 Earth MOID = 2.80187 au 
 Jupiter MOID = .305461 au 
 T_jup = 2.969 
[ 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 7.1   0.8 34 from 153 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 15.5   n/a 34 autocmod 2.8
comet nuclear magnitude M2 13.1   0.8 34 from 189 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 34 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 34 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2018.8   372P/2018 P6       
 2009.3   372P/2008 O2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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