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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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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 2454483.5 (2008-Jan-18.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3332287901715139 6.1146e-07  
a 4.907491113861963 1.1674e-07 au
q 3.272173787212286 2.976e-06 au
i 12.12106251376573 4.1804e-05 deg
node 234.8187682207246 0.00015013 deg
peri 133.6966081814261 0.00020902 deg
M 340.0528828910865 7.3254e-05 deg
tp 2454703.521614076031
(2008-Aug-25.02161408)
0.00081352 TDB
period 3970.888656986763
10.87
0.00014169
3.879e-07
d
yr
n .09065980718612732 3.235e-09 deg/d
Q 6.54280844051164 1.5564e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6713  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:27:52  

Additional Information
 Earth MOID = 2.28799 au 
 Jupiter MOID = .0954024 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 7.0   2. 44 from 230 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 17.25   n/a 44 autocmod 2.9c
comet nuclear magnitude M2 14.1   0.8 44 from 212 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 44 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 44 autocmod 2.9c

[ 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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