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P/2010 A2 (LINEAR)
Classification: Encke-type Comet          SPK-ID: 1003055
[ 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 2455224.5 (2010-Jan-28.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1244145159164767 7.8399e-06  
a 2.290482023060616 4.0191e-05 AU
q 2.005512810946137 2.4467e-05 AU
i 5.254739288701907 0.00016893 deg
node 320.2882145259454 0.00089524 deg
peri 133.1901927232392 0.016757 deg
M 15.46063021400696 0.013184 deg
tp 2455170.123224549533
(2009-Dec-04.62322455)		 0.046309 JED
period 1266.16049224391
3.47		 0.033326
9.124e-05		 d
yr
n .2843241454817486 7.4835e-06 deg/d
Q 2.575451235175094 4.5191e-05 AU
   Orbit Determination Parameters
   # obs. used (total)      128  
   data-arc span      112 days  
   first obs. used      2009-12-10  
   last obs. used      2010-04-01  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      4  
   fit RMS      1.1359  
   data source      ORB  
   producer      Otto Matic  
   solution date      2011-Sep-14 21:23:31  

Additional Information
 Earth MOID = 1.02625 AU 
 T_jup = 3.583 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 15.5 mag 0.8 20 from 26 observations, assumed slope, autocmod 2.5a
comet total magnitude slope K1 10.   n/a 20 autocmod 2.5a

Alternate Designations
 Perihelion 
Year (est.)		  New-Style 
Desig		 Roman
 Numeral 		 Year/
 Letter 
 2009.9   P/2010 A2       
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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