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

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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 2455778.5 (2011-Aug-05.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000101676263677 2.2333e-05  
a -18921.28472296266 4156 au
q 1.923845534598865 5.0572e-06 au
i 87.11442266015185 0.00021795 deg
node 307.7552007754244 8.7206e-05 deg
peri 27.72702943918406 0.00022895 deg
M -2.082932179397575E-6 6.8607e-07 deg
tp 2455784.000434367806
(2011-Aug-10.50043437)
0.00054047 TDB
period n/a
n/a
n/a
n/a
d
yr
n 3.786850346927074E-7 1.2476e-07 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      798  
   data-arc span      174 days  
   first obs. used      2011-06-03  
   last obs. used      2011-11-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .79245  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:31:51  

Additional Information
 Earth MOID = .986314 au 
 Jupiter MOID = 2.98938 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 14.7   1. 25 2 parameter fit from 127 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a 25 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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