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C/2009 P1 (Garradd)
Classification: Hyperbolic Comet          SPK-ID: 1003031
[ 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 2456220.5 (2012-Oct-20.0) TDB
Reference: JPL 77 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.00086523306325 1.2473e-06  
a -1792.047241132992 2.5829 AU
q 1.550538523934078 8.0015e-07 AU
i 106.172422705721 5.3807e-06 deg
node 325.9988780005446 3.5275e-06 deg
peri 90.7422466659238 5.4495e-05 deg
M .003915055902926285 8.4636e-06 deg
tp 2455919.159104151009
(2011-Dec-23.65910415)		 7.0352e-05 JED
period n/a
n/a		 n/a
n/a		 d
yr
n 1.299211609461801E-5 2.8089e-08 deg/d
Q n/a n/a AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.986530430903111E-8 3.833E-10
A2 [EST] -4.34597878563044E-9 1.814E-10
   Orbit Determination Parameters
   # obs. used (total)      8359  
   data-arc span      1147 days (3.14 yr)  
   first obs. used      2009-08-13  
   last obs. used      2012-10-03  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   fit RMS      .52964  
   data source      ORB  
   producer      Alan B. Chamberlin  
   solution date      2012-Oct-12 16:02:44  

Additional Information
 Earth MOID = 1.25372 AU 
 T_jup = -0.432 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 7.0 mag 2. 77 from 785 observations, assumed slope, autocmod 2.5b
comet total magnitude slope K1 8.   n/a 77 autocmod 2.5b
comet nuclear magnitude M2 9.8 mag 0.9 77 from 7078 observations, autocmod 2.5b
comet nuclear magnitude slope K2 5.   n/a 77 autocmod 2.5b
comet nuclear phase coefficient PC 0.03   n/a 77 autocmod 2.5b
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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