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JPL Small-Body Database Browser
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43P/Wolf-Harrington
Classification: Jupiter-family Comet          SPK-ID: 1000111
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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.


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:
Orbital Elements at Epoch 2456756.5 (2014-Apr-09.0) TDB
Reference: JPL K162/6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5949096247356784 2.1076e-07  
a 3.350102994696103 2.1803e-07 au
q 1.357094479295572 7.4334e-07 au
i 15.97248249331635 7.4081e-06 deg
node 249.8663360818902 5.6785e-05 deg
peri 191.5591866853453 7.0896e-05 deg
M 221.2164713363061 2.0226e-05 deg
tp 2457619.917983949982
(2016-Aug-19.41798395)
6.6106e-05 TDB
period 2239.678420161883
6.13
0.00021864
5.986e-07
d
yr
n .1607373615601383 1.5692e-08 deg/d
Q 5.343111510096635 3.4774e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.575587830954031E-9 9.735E-11
A2 [EST] 2.400491171836983E-10 4.034E-11
  Orbit Determination Parameters
   # obs. used (total)      1636  
   data-arc span      2939 days (8.05 yr)  
   first obs. used      2009-05-24  
   last obs. used      2017-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67053  
   source      ORB  
   producer      Shantanu Naidu  
   solution date      2017-Oct-03 16:45:51  

Additional Information
 Earth MOID = .375803 au 
 Jupiter MOID = .0733212 au 
 T_jup = 2.793 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 8.6   0.8 K162/6 2 parameter fit from 328 observations, autocmod 2.6i
comet total magnitude slope K1 17.   n/a K162/6 autocmod 2.6i
comet nuclear magnitude M2 13.9   0.9 K162/6 from 1135 observations, autocmod 2.6i
comet nuclear magnitude slope K2 5.   n/a K162/6 autocmod 2.6i
comet nuclear phase coefficient PC 0.03   n/a K162/6 autocmod 2.6i
diameter diameter 3.6 km n/a Lamy,P.L.;Toth,I.;Fernandez,Y.R.;Weaver,H.A. (2004) Comets II, pp. 223-264  

43P/Wolf-Harrington          Discovered 1924-Dec-22 by Wolf, Max at Heidelberg, Germany
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1992.1       1991 V   1990e 
 1986.0       1984 XVII   1984g 
 1979.8       1978 VI   1977j 
 1973.7       1971 VI   
 1967.6       1965 III   1970o 
 1961.4           1964g 
 1955.3       1958 V   1957g 
 1949.2   43P/1951 T2   1952 II   1951k 
 1924.7   43P/1924 Y1   1924 IV   1924d 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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