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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 2454588.5 (2008-May-02.0) TDB
Reference: JPL 146 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2864992405012382 4.7109e-08  
a 4.019933131345007 4.2309e-08 AU
q 2.868225342348898 1.9309e-07 AU
i 15.98660774309068 5.4519e-06 deg
node 78.81931935604027 2.8504e-05 deg
peri 176.392276264796 4.0004e-05 deg
M 148.3047268289788 2.034e-05 deg
tp 2453375.727996544078
(2005-Jan-05.22799654)
0.00016603 JED
period 2943.924516631257
8.06
4.6476e-05
1.272e-07
d
yr
n .1222857440692635 1.9305e-09 deg/d
Q 5.171640920341115 5.443e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      2629  
   data-arc span      4117 days (11.27 yr)  
   first obs. used      2003-03-07  
   last obs. used      2014-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61779  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:03:01  

Additional Information
 Earth MOID = 1.85323 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 4.6 mag 0.9 146 2 parameter fit from 680 observations, autocmod 2.5c
comet total magnitude slope K1 17.   n/a 146 autocmod 2.5c
comet nuclear magnitude M2 11.3 mag 0.6 146 from 1489 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 146 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 146 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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