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C/2009 P2 (Boattini)
Classification: Hyperbolic Comet          SPK-ID: 1003032
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 2455176.5 (2009-Dec-11.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.001520797473718 1.5041e-05  
a -4302.991807810152 42.548 au
q 6.543979070746569 1.4613e-05 au
i 163.4528481679468 1.8857e-05 deg
node 60.36403544772519 0.00013898 deg
peri 76.03039463036147 0.00026421 deg
M -.0002147373732412002 3.1834e-06 deg
tp 2455237.997766236123
(2010-Feb-10.49776624)
0.0027027 TDB
period n/a
n/a
n/a
n/a
d
yr
n 3.49179143217508E-6 5.179e-08 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      507  
   data-arc span      1060 days (2.90 yr)  
   first obs. used      2008-10-01  
   last obs. used      2011-08-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   norm. resid. RMS      .72765  
   source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:44:23  

Additional Information
 Earth MOID = 5.58243 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 8.5   0.5 40 from 112 observations, assumed slope, autocmod 2.5c
comet total magnitude slope K1 8.   n/a 40 autocmod 2.5c
comet nuclear magnitude M2 11.2   0.6 40 from 366 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 40 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 40 autocmod 2.5c

Alternate Designations
 2009 P2 = 2008 TQ137 = 2008 VP28 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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