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320P/McNaught (2004 R1)
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000508
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 2455672.5 (2011-Apr-21.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6824401124131176 7.6165e-08  
a 3.102912310104745 2.6093e-08 au
q .9853604843888162 2.3369e-07 au
i 4.893571727959618 1.5806e-05 deg
node 295.9559252386137 0.00022821 deg
peri .665388450046148 0.00022426 deg
M 76.44253318771239 4.8983e-06 deg
tp 2455248.578688468470
(2010-Feb-21.07868847)
3.0106e-05 TDB
period 1996.423532650303
5.47
2.5183e-05
6.895e-08
d
yr
n .1803224586929662 2.2746e-09 deg/d
Q 5.220464135820674 4.39e-08 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      4055 days (11.10 yr)  
   first obs. used      2004-09-02  
   last obs. used      2015-10-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   norm. resid. RMS      .7419  
   source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-24 21:36:32  

Additional Information
 Earth MOID = .0273896 au 
 T_jup = 2.802 
[ 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 19.6   01. 29 2 parameter fit from 59 observations, autocmod 2.6
comet total magnitude slope K1 14.   n/a 29 autocmod 2.6

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2015.6   320P/2015 HC10       
 2004.7   320P/2004 R1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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