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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 2454762.5 (2008-Oct-23.0) TDB
Reference: JPL 172 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2862945496592035 4.3686e-08  
a 4.020705629571524 4.1702e-08 au
q 2.86959952204112 1.7698e-07 au
i 15.98492812667825 5.2875e-06 deg
node 78.82097317795507 2.8217e-05 deg
peri 176.4190578966535 3.6171e-05 deg
M 169.5388737462039 1.757e-05 deg
tp 2453375.684659968942
(2005-Jan-05.18465997)
0.00014065 JED
period 2944.773144821952
8.06
4.5814e-05
1.254e-07
d
yr
n .1222505036196146 1.902e-09 deg/d
Q 5.171811737101928 5.3642e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2891  
   data-arc span      4659 days (12.76 yr)  
   first obs. used      2003-03-07  
   last obs. used      2015-12-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61616  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Dec-22 21:38:33  

Additional Information
 Earth MOID = 1.85475 au 
 T_jup = 2.914 
[ 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 01. 172 2 parameter fit from 783 observations, autocmod 2.6
comet total magnitude slope K1 16.   n/a 172 autocmod 2.6
comet nuclear magnitude M2 11.3 mag 0.6 172 from 1642 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a 172 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a 172 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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