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JPL Small-Body Database Browser
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284P/McNaught
Classification: Jupiter-family Comet          SPK-ID: 1002452
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.


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Orbital Elements at Epoch 2455299.5 (2010-Apr-13.0) TDB
Reference: JPL 56 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3783144588985211 2.2544e-07  
a 3.671507092224214 3.212e-08 au
q 2.282522873287328 8.3637e-07 au
i 11.87431519594623 1.4702e-05 deg
node 144.3642005197949 4.8846e-05 deg
peri 202.7578122776853 9.7754e-05 deg
M 135.7315257294248 3.7254e-05 deg
tp 2454330.679735475996
(2007-Aug-18.17973548)
0.00026831 TDB
period 2569.596807774125
7.04
3.372e-05
9.232e-08
d
yr
n .1400998004476215 1.8385e-09 deg/d
Q 5.0604913111611 4.4271e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -2.610751804886552E-9 8.066E-10
  Orbit Determination Parameters
   # obs. used (total)      1792  
   data-arc span      3215 days (8.80 yr)  
   first obs. used      2006-04-25  
   last obs. used      2015-02-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   norm. resid. RMS      .60318  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2017-Mar-09 16:24:37  

Additional Information
 Earth MOID = 1.27816 au 
 Jupiter MOID = .419184 au 
 T_jup = 2.939 
[ 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 8.0   1. 56 2 parameter fit from 315 observations, autocmod 2.6h
comet total magnitude slope K1 19.   n/a 56 autocmod 2.6h
comet nuclear magnitude M2 13.5   0.8 56 from 1293 observations, autocmod 2.6h
comet nuclear magnitude slope K2 5.   n/a 56 autocmod 2.6h
comet nuclear phase coefficient PC 0.03   n/a 56 autocmod 2.6h

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2014.7   284P/2013 J1       
 2007.6   284P/2007 H1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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