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C/2007 W1 (Boattini)
Classification: Hyperbolic Comet          SPK-ID: 1002487
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2454612.5 (2008-May-26.0) TDB
Reference: JPL 63 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000225261434392 3.4408e-06  
a -3772.0521053813 57.619 au
q .8496978678597608 7.2555e-07 au
i 9.88966080522319 4.3152e-05 deg
node 334.529359420988 0.00013773 deg
peri 306.5477234631232 0.00014749 deg
M -.0001271566677730796 2.9132e-06 deg
tp 2454642.388325851648
(2008-Jun-24.88832585)
0.00011 TDB
period n/a
n/a
n/a
n/a
d
yr
n 4.254392447547154E-6 9.7481e-08 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      773  
   data-arc span      270 days  
   first obs. used      2007-11-20  
   last obs. used      2008-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .98901  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-16 12:08:09  

Additional Information
 Earth MOID = .0178282 au 
 Jupiter MOID = .015923 au 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 12.8   2. 63 2 parameter fit from 155 observations, autocmod 2.9c
comet total magnitude slope K1 18.5   n/a 63 autocmod 2.9c
comet nuclear magnitude M2 16.9   1. 63 from 921 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 63 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 63 autocmod 2.9c

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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