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C/2011 L4 (PANSTARRS)
Classification: Hyperbolic Comet          SPK-ID: 1003133
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2456225.5 (2012-Oct-25.0) TDB
Reference: JPL 73 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000048251659126 2.5047e-07  
a -6249.830597864506 32.444 AU
q .3015646956035947 1.6083e-07 AU
i 84.20927158636785 1.1215e-05 deg
node 65.66631318267387 6.672e-06 deg
peri 333.6486643468065 1.6227e-05 deg
M 359.999728369371 2.1151e-06 deg
tp 2456361.668619429894
(2013-Mar-10.16861943)		 1.7739e-05 JED
period n/a
n/a		 n/a
n/a		 d
yr
n 1.99481077324933E-6 1.5533e-08 deg/d
Q n/a n/a AU
   Orbit Determination Parameters
   # obs. used (total)      2676  
   data-arc span      749 days (2.05 yr)  
   first obs. used      2011-05-21  
   last obs. used      2013-06-08  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   fit RMS      .52477  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Jun-08 20:42:51  

Additional Information
 Earth MOID = .658909 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 5.4 mag 01. 73 2 parameter fit from 412 observations, autocmod 2.5c
comet total magnitude slope K1 9.   n/a 73 autocmod 2.5c
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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