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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 2454596.5 (2008-May-10.0) TDB
Reference: JPL 147 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2864906997694721 4.7581e-08  
a 4.01996876304104 4.2276e-08 AU
q 2.868285099065993 1.946e-07 AU
i 15.98654886470165 5.4613e-06 deg
node 78.81939999192188 2.8481e-05 deg
peri 176.3935710557713 4.0423e-05 deg
M 149.281137763965 2.068e-05 deg
tp 2453375.727098862801
(2005-Jan-05.22709886)
0.00016853 JED
period 2943.963658049486
8.06
4.644e-05
1.271e-07
d
yr
n .1222841182212544 1.929e-09 deg/d
Q 5.171652427016086 5.4387e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      2639  
   data-arc span      4160 days (11.39 yr)  
   first obs. used      2003-03-07  
   last obs. used      2014-07-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61528  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-28 13:13:37  

Additional Information
 Earth MOID = 1.85368 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 0.9 147 2 parameter fit from 681 observations, autocmod 2.5c
comet total magnitude slope K1 16.   n/a 147 autocmod 2.5c
comet nuclear magnitude M2 11.3 mag 0.6 147 from 1498 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 147 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 147 autocmod 2.5c

[ 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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