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246P/NEAT
Classification: Jupiter-family Comet          SPK-ID: 1000486
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454660.5 (2008-Jul-13.0) TDB
Reference: JPL 155 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2864225541363621 4.4986e-08  
a 4.020241809569784 4.1875e-08 AU
q 2.868753882227016 1.8292e-07 AU
i 15.98605184170228 5.351e-06 deg
node 78.8200275964672 2.8426e-05 deg
peri 176.4035616506378 3.8333e-05 deg
M 157.0924132302449 1.923e-05 deg
tp 2453375.718125107124
(2005-Jan-05.21812511)
0.00015545 JED
period 2944.263605420166
8.06
4.6001e-05
1.259e-07
d
yr
n .1222716605052847 1.9104e-09 deg/d
Q 5.171729736912551 5.3868e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      2747  
   data-arc span      4222 days (11.56 yr)  
   first obs. used      2003-03-07  
   last obs. used      2014-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61403  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 13:54:22  

Additional Information
 Earth MOID = 1.85397 AU 
 T_jup = 2.913 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 5.1 mag 0.9 155 2 parameter fit from 704 observations, autocmod 2.6
comet total magnitude slope K1 16.   n/a 155 autocmod 2.6
comet nuclear magnitude M2 11.3 mag 0.6 155 from 1577 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a 155 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a 155 autocmod 2.6

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2013.1   246P/2010 V2       
 2005.0   246P/2004 F3       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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