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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454483.5 (2008-Jan-18.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3332287877864057 6.1146e-07  
a 4.90749111112569 1.1674e-07 au
q 3.272173797092715 2.976e-06 au
i 12.12106254382436 4.1804e-05 deg
node 234.8187681454415 0.00015013 deg
peri 133.6966066152785 0.00020902 deg
M 340.0528836791423 7.3254e-05 deg
tp 2454703.521605199565
(2008-Aug-25.02160520)
0.00081352 TDB
period 3970.888653665687
10.87
0.00014169
3.879e-07
d
yr
n .09065980726195119 3.235e-09 deg/d
Q 6.542808425158666 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6713  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 23:13:47  

Additional Information
 Earth MOID = 2.28799 au 
 Jupiter MOID = .0954021 au 
 T_jup = 2.851 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 3.738773889402458E-13 -1.819143925077893E-12 3.842217795882298E-10 5.789075770888402E-12 6.032089429420523E-11 -3.826957282339675E-12
q -1.819143925077893E-12 8.856659876394939E-12 -1.840978465674525E-9 -2.84933148465844E-11 -2.874989826617723E-10 1.869485485174005E-11
tp 3.842217795882298E-10 -1.840978465674525E-9 6.618156196403118E-7 1.037140769532209E-9 1.19819359949252E-7 -2.843742911130275E-9
node 5.789075770888402E-12 -2.84933148465844E-11 1.037140769532209E-9 2.253786725250561E-8 -2.19743466665862E-8 -5.955152657731534E-9
peri 6.032089429420523E-11 -2.874989826617723E-10 1.19819359949252E-7 -2.19743466665862E-8 4.368973574918419E-8 5.353628470844908E-9
i -3.826957282339675E-12 1.869485485174005E-11 -2.843742911130275E-9 -5.955152657731534E-9 5.353628470844908E-9 1.747583697791475E-9

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 4.2   2. 43 2 parameter fit from 229 observations, autocmod 2.9b
comet total magnitude slope K1 22.5   n/a 43 autocmod 2.9b
comet nuclear magnitude M2 14.1   0.8 43 from 212 observations, autocmod 2.9b
comet nuclear magnitude slope K2 5.   n/a 43 autocmod 2.9b
comet nuclear phase coefficient PC 0.03   n/a 43 autocmod 2.9b

[ 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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