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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 2454637.5 (2008-Jun-20.0) TDB
Reference: JPL 152 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .286446851617466 4.582e-08  
a 4.020146782406279 4.2004e-08 AU
q 2.868588393545914 1.8669e-07 AU
i 15.98623843264833 5.3901e-06 deg
node 78.81981063661595 2.8439e-05 deg
peri 176.400128118638 3.9004e-05 deg
M 154.2851849834225 1.9699e-05 deg
tp 2453375.721808070105
(2005-Jan-05.22180807)
0.00015971 JED
period 2944.15921492118
8.06
4.6142e-05
1.263e-07
d
yr
n .1222759958685311 1.9164e-09 deg/d
Q 5.171705171266644 5.4035e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      2701  
   data-arc span      4201 days (11.50 yr)  
   first obs. used      2003-03-07  
   last obs. used      2014-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .6177  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:41:15  

Additional Information
 Earth MOID = 1.85396 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 0.9 152 2 parameter fit from 701 observations, autocmod 2.6
comet total magnitude slope K1 16.   n/a 152 autocmod 2.6
comet nuclear magnitude M2 11.3 mag 0.6 152 from 1537 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a 152 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a 152 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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