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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 2454706.5 (2008-Aug-28.0) TDB
Reference: JPL 163 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2863758531722661 4.4048e-08  
a 4.020421852178497 4.1742e-08 AU
q 2.869070114148458 1.7859e-07 AU
i 15.98565888718644 5.3045e-06 deg
node 78.82041733987307 2.842e-05 deg
peri 176.4105773888173 3.7609e-05 deg
M 162.7058687956446 1.8727e-05 deg
tp 2453375.719030958805
(2005-Jan-05.21903096)
0.00015067 JED
period 2944.461391595817
8.06
4.5857e-05
1.255e-07
d
yr
n .1222634472394593 1.9041e-09 deg/d
Q 5.171773590208537 5.3696e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      2822  
   data-arc span      4316 days (11.82 yr)  
   first obs. used      2003-03-07  
   last obs. used      2014-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61218  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-07 23:57:18  

Additional Information
 Earth MOID = 1.85403 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 0.9 163 2 parameter fit from 721 observations, autocmod 2.6
comet total magnitude slope K1 16.   n/a 163 autocmod 2.6
comet nuclear magnitude M2 11.3 mag 0.6 163 from 1630 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a 163 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a 163 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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