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246P/NEAT
Classification: Jupiter-family Comet          SPK-ID: 1000486
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2455839.5 (2011-Oct-05.0) TDB
Reference: JPL 208 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2850320817272146 4.1095e-08  
a 4.026275708918009 4.1797e-08 au
q 2.878657961997392 1.661e-07 au
i 15.97071243396372 4.5609e-06 deg
node 78.78980829965413 2.5766e-05 deg
peri 176.2933439911766 3.2509e-05 deg
M 301.1778995813371 1.5642e-05 deg
tp 2456321.660602033465
(2013-Jan-29.16060203)
0.00013048 TDB
period 2950.89457018055
8.08
4.595e-05
1.258e-07
d
yr
n .1219969034603542 1.8997e-09 deg/d
Q 5.173893455838625 5.371e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] 4.40508243992567E-9 5.558E-11
  Orbit Determination Parameters
   # obs. used (total)      4098  
   data-arc span      6654 days (18.22 yr)  
   first obs. used      2003-03-07  
   last obs. used      2021-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58094  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-31 22:43:10  

Additional Information
 Earth MOID = 1.8638 au 
 Jupiter MOID = .0933094 au 
 T_jup = 2.914 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 4.6   0.8 208 2 parameter fit from 1873 observations, autocmod 2.9c
comet total magnitude slope K1 17.5   n/a 208 autocmod 2.9c
comet nuclear magnitude M2 11.3   0.6 208 from 1705 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 208 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 208 autocmod 2.9c

[ 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 | Mission Design | Physical Parameters | Close-Approach Data ]
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