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JPL Small-Body Database Browser
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C/2011 L3 (McNaught)
Classification: Hyperbolic Comet          SPK-ID: 1003132
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455778.5 (2011-Aug-05.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000100494262184 2.1974e-05  
a -19143.82845924095 4185.9 au
q 1.923844916389606 4.9758e-06 au
i 87.11440400056719 0.0002146 deg
node 307.7551947324458 8.5854e-05 deg
peri 27.72707531417844 0.00022521 deg
M -2.04675003966096E-6 6.7113e-07 deg
tp 2455784.000522236249
(2011-Aug-10.50052224)
0.00053174 TDB
period n/a
n/a
n/a
n/a
d
yr
n 3.721010390927373E-7 1.2204e-07 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      799  
   data-arc span      174 days  
   first obs. used      2011-06-03  
   last obs. used      2011-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   norm. resid. RMS      .81604  
   source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:44:44  

Additional Information
 Earth MOID = .986313 au 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 11.8   1. 24 from 127 observations, assumed slope, autocmod 2.5c
comet total magnitude slope K1 14.   n/a 24 autocmod 2.5c
comet nuclear magnitude M2 15.6   0.7 24 from 645 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 24 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 24 autocmod 2.5c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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