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C/2009 P1 (Garradd)
Classification: Hyperbolic Comet          SPK-ID: 1003031
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456799.5 (2014-May-22.0) TDB
Reference: JPL 82 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000246788132046 9.9849e-07  
a -6285.799591432994 25.43 AU
q 1.551260739585501 6.7997e-07 AU
i 106.1681444598937 4.896e-06 deg
node 325.9965918283905 3.197e-06 deg
peri 90.72354624892876 4.3966e-05 deg
M .001741851698326791 1.057e-05 deg
tp 2455918.759640745399
(2011-Dec-23.25964075)
6.1114e-05 JED
period n/a
n/a
n/a
n/a
d
yr
n 1.977713045648296E-6 1.2001e-08 deg/d
Q n/a n/a AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 2.122169738922974E-8 2.883E-10
A2 [EST] -1.141399455639951E-9 1.376E-10
  Orbit Determination Parameters
   # obs. used (total)      9021  
   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  
   fit RMS      .57187  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2014-May-12 11:02:36  

Additional Information
 Earth MOID = 1.25504 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 mag 2. 82 from 902 observations, assumed slope, autocmod 2.5c
comet total magnitude slope K1 8.   n/a 82 autocmod 2.5c
comet nuclear magnitude M2 9.9 mag 0.9 82 from 7602 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 82 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 82 autocmod 2.5c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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