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JPL Small-Body Database Browser
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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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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.


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Orbital Elements at Epoch 2455887.5 (2011-Nov-22.0) TDB
Reference: JPL 83 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000996735852779 8.9932e-07  
a -1555.612855834645 1.4032 au
q 1.550535106454211 4.4339e-07 au
i 106.1772794500434 5.9548e-06 deg
node 325.99722350 3.679e-06 deg
peri 90.74707834593728 1.8414e-05 deg
M -.0005088660931644286 6.8816e-07 deg
tp 2455919.177560229340
(2011-Dec-23.67756023)
2.791e-05 TDB
period n/a
n/a
n/a
n/a
d
yr
n 1.606392946553734E-5 2.1734e-08 deg/d
Q n/a n/a au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 2.014387453580294E-8 3.23E-10
A2 [EST] -1.023634420418078E-9 1.462E-10
  Orbit Determination Parameters
   # obs. used (total)      9040  
   data-arc span      1978 days (5.42 yr)  
   first obs. used      2008-09-27  
   last obs. used      2014-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   norm. resid. RMS      .47698  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2017-Mar-08 17:05:48  

Additional Information
 Earth MOID = 1.25341 au 
 Jupiter MOID = 1.30703 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 7.2   2. 83 from 897 observations, assumed slope, autocmod 2.6h
comet total magnitude slope K1 8.   n/a 83 autocmod 2.6h
comet nuclear magnitude M2 9.9   0.9 83 from 7633 observations, autocmod 2.6h
comet nuclear magnitude slope K2 5.   n/a 83 autocmod 2.6h
comet nuclear phase coefficient PC 0.03   n/a 83 autocmod 2.6h
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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