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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 2454769.5 (2008-Oct-30.0) TDB
Reference: JPL 176 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2862836659739946 4.3678e-08  
a 4.020741733347053 4.1702e-08 au
q 2.869669049989825 1.7695e-07 au
i 15.9848228167145 5.2873e-06 deg
node 78.82104012573134 2.8176e-05 deg
peri 176.4198764937487 3.6008e-05 deg
M 170.3933012134391 1.7446e-05 deg
tp 2453375.676733560333
(2005-Jan-05.17673356)
0.00013959 JED
period 2944.812808631144
8.06
4.5814e-05
1.254e-07
d
yr
n .1222488570223725 1.9019e-09 deg/d
Q 5.171814416704282 5.364e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2899  
   data-arc span      4748 days (13.00 yr)  
   first obs. used      2003-03-07  
   last obs. used      2016-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61788  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 15:36:01  

Additional Information
 Earth MOID = 1.85341 au 
 Jupiter MOID = .0850719 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. 176 2 parameter fit from 793 observations, autocmod 2.6f
comet total magnitude slope K1 16.   n/a 176 autocmod 2.6f
comet nuclear magnitude M2 11.3 mag 0.6 176 from 1642 observations, autocmod 2.6f
comet nuclear magnitude slope K2 5.   n/a 176 autocmod 2.6f
comet nuclear phase coefficient PC 0.03   n/a 176 autocmod 2.6f

[ 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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