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353P/McNaught
Classification: Jupiter-family Comet          SPK-ID: 1003038
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456186.5 (2012-Sep-16.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4694333899857203 7.8652e-07  
a 4.163982605600433 5.9654e-07 au
q 2.209270135211849 3.5845e-06 au
i 28.42355672957292 4.4424e-05 deg
node 121.6049126607685 5.9753e-05 deg
peri 230.5052191579769 0.00030649 deg
M 136.9746011008214 0.00012583 deg
tp 2455005.637502047486
(2009-Jun-23.13750205)
0.0012985 TDB
period 3103.571726775816
8.50
0.00066693
1.826e-06
d
yr
n .1159953858627235 2.4926e-08 deg/d
Q 6.118695075989017 8.7657e-07 au
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      3506 days (9.60 yr)  
   first obs. used      2008-05-30  
   last obs. used      2018-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .49528  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-09 08:46:24  

Additional Information
 Earth MOID = 1.29266 au 
 Jupiter MOID = .439565 au 
 T_jup = 2.639 
[ 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 8.5   0.4 14 2 parameter fit from 65 observations, autocmod 2.8
comet total magnitude slope K1 25.25   n/a 14 autocmod 2.8
comet nuclear magnitude M2 16.8   0.5 14 from 26 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 14 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 14 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2018.0   353P/2017 M1       
 2009.5   353P/2009 S2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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