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C/2008 C1 (Chen-Gao)
Classification: Comet          SPK-ID: 1002495
[ 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 2454533.5 (2008-Mar-08.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9999919126075594 2.282e-05  
a 156087.8500765685 4.4042e+05 AU
q 1.262343698782728 5.2585e-06 AU
i 61.78450949413179 9.5398e-05 deg
node 307.7824273426021 0.00021677 deg
peri 180.9286057138947 0.00044748 deg
M 359.9999993630674 2.6958e-06 deg
tp 2454573.351346769308
(2008-Apr-16.85134677)		 0.00046412 JED
period 22524340037.64255
61668282.10		 9.5333e+10
2.61e+08		 d
yr
n 1.598271023250271E-8 6.7646e-08 deg/d
Q 312174.4378094383 8.8084e+05 AU
   Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      119 days  
   first obs. used      2008-01-30  
   last obs. used      2008-05-28  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   fit RMS      .89389  
   data source      ORB  
   producer      Otto Matic  
   solution date      2011-Sep-14 21:21:56  

Additional Information
 Earth MOID = .277377 AU 
 T_jup = 0.659 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 11.7 mag 1. 19 from 152 observations, assumed slope, autocmod 2.5a
comet total magnitude slope K1 17.   n/a 19 autocmod 2.5a
comet nuclear magnitude M2 15.5 mag 0.9 19 from 527 observations, autocmod 2.5a
comet nuclear magnitude slope K2 5.   n/a 19 autocmod 2.5a
comet nuclear phase coefficient PC 0.03   n/a 19 autocmod 2.5a

Alternate Designations
 Perihelion 
Year (est.)		  New-Style 
Desig		 Roman
 Numeral 		 Year/
 Letter 
 2008.3   C/2008 C1       
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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