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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 2454680.5 (2008-Aug-02.0) TDB
Reference: JPL 159 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2864030876425427 4.4537e-08  
a 4.020317190948435 4.1812e-08 AU
q 2.868885934158409 1.8078e-07 AU
i 15.98588787356604 5.3277e-06 deg
node 78.82020071985559 2.8421e-05 deg
peri 176.4063762213314 3.802e-05 deg
M 159.533510380878 1.9022e-05 deg
tp 2453375.716890550037
(2005-Jan-05.21689055)
0.00015339 JED
period 2944.346415248746
8.06
4.5932e-05
1.258e-07
d
yr
n .1222682216112761 1.9074e-09 deg/d
Q 5.171748447738461 5.3787e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      2775  
   data-arc span      4267 days (11.68 yr)  
   first obs. used      2003-03-07  
   last obs. used      2014-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .6146  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-16 14:42:54  

Additional Information
 Earth MOID = 1.85376 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 0.9 159 2 parameter fit from 715 observations, autocmod 2.6
comet total magnitude slope K1 16.   n/a 159 autocmod 2.6
comet nuclear magnitude M2 11.3 mag 0.6 159 from 1590 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a 159 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a 159 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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