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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 2454672.5 (2008-Jul-25.0) TDB
Reference: JPL 156 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2864105464640333 4.4758e-08  
a 4.020288006817029 4.1844e-08 AU
q 2.868835121841764 1.8175e-07 AU
i 15.98595147200187 5.339e-06 deg
node 78.82013512952588 2.8424e-05 deg
peri 176.4052199374894 3.8193e-05 deg
M 158.557142554787 1.9145e-05 deg
tp 2453375.716469654925
(2005-Jan-05.21646965)
0.0001545 JED
period 2944.314355078117
8.06
4.5968e-05
1.259e-07
d
yr
n .1222695529704907 1.9089e-09 deg/d
Q 5.171740891792292 5.3829e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      2763  
   data-arc span      4245 days (11.62 yr)  
   first obs. used      2003-03-07  
   last obs. used      2014-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61395  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-29 15:44:00  

Additional Information
 Earth MOID = 1.85447 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 0.9 156 2 parameter fit from 711 observations, autocmod 2.6
comet total magnitude slope K1 16.   n/a 156 autocmod 2.6
comet nuclear magnitude M2 11.3 mag 0.6 156 from 1584 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a 156 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a 156 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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