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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 2454691.5 (2008-Aug-13.0) TDB
Reference: JPL 160 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2863923426830297 4.4308e-08  
a 4.020359142845081 4.1779e-08 AU
q 2.868959069498541 1.7975e-07 AU
i 15.98579749524641 5.3171e-06 deg
node 78.82028946972409 2.8421e-05 deg
peri 176.4080952065337 3.7835e-05 deg
M 160.8757742659064 1.889e-05 deg
tp 2453375.718268216816
(2005-Jan-05.21826822)
0.00015217 JED
period 2944.392501626835
8.06
4.5896e-05
1.257e-07
d
yr
n .122266307838066 1.9059e-09 deg/d
Q 5.171759216191621 5.3744e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      2791  
   data-arc span      4280 days (11.72 yr)  
   first obs. used      2003-03-07  
   last obs. used      2014-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61321  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Dec-07 16:13:32  

Additional Information
 Earth MOID = 1.85441 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 0.9 160 2 parameter fit from 716 observations, autocmod 2.6
comet total magnitude slope K1 16.   n/a 160 autocmod 2.6
comet nuclear magnitude M2 11.3 mag 0.6 160 from 1604 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a 160 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a 160 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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