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200P/Larsen
Classification: Jupiter-family Comet          SPK-ID: 1000169
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

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 two-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.

Note: If the applet is not working, here are some notes that might help.
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 2454461.5 (2007-Dec-27.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3332444293860415 6.1151e-07  
a 4.90767838556881 1.1669e-07 au
q 3.272221902359723 2.9758e-06 au
i 12.1210582408734 4.1804e-05 deg
node 234.8196348909933 0.00015012 deg
peri 133.690307828843 0.00020902 deg
M 338.0621926868761 7.3198e-05 deg
tp 2454703.493268445084
(2008-Aug-24.99326845)
0.00081353 TDB
period 3971.115955062361
10.87
0.00014164
3.878e-07
d
yr
n .09065461801513844 3.2334e-09 deg/d
Q 6.543134868777898 1.5558e-07 au
  Orbit Determination Parameters
   # obs. used (total)      604  
   data-arc span      8082 days (22.13 yr)  
   first obs. used      1997-11-03  
   last obs. used      2019-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67128  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-09 08:46:01  

Additional Information
 Earth MOID = 2.28868 au 
 Jupiter MOID = .0954587 au 
 T_jup = 2.851 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 10.7   1. 42 from 221 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 10.   n/a 42 autocmod 2.8
comet nuclear magnitude M2 14.1   0.8 42 from 212 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 42 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 42 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2008.6   200P/2008 L1       
 1997.8   200P/1997 V1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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