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43P/Wolf-Harrington
Classification: Jupiter-family Comet          SPK-ID: 1000111
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
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 2455740.5 (2011-Jun-28.0) TDB
Reference: JPL K094/9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5946651580229637 2.2978e-07  
a 3.34922191681506 9.6926e-07 AU
q 1.357556336398259 4.6826e-07 AU
i 15.96804647420937 1.3843e-05 deg
node 249.8826570554401 2.7857e-05 deg
peri 191.491979515038 4.0212e-05 deg
M 58.08204437832079 5.7854e-05 deg
tp 2455379.295038475982
(2010-Jul-01.79503848)
0.00022014 JED
period 2238.794924325732
6.13
0.00097185
2.661e-06
d
yr
n .1608007933591429 6.9803e-08 deg/d
Q 5.340887497231861 1.5456e-06 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.20286469777651E-9 5.861E-11
A2 [EST] 1.572097882547832E-10 1.967E-11
A3 [EST] -2.639688752563234E-10 5.012E-11
DT [EST] -34.40391684116751 2.276
  Orbit Determination Parameters
   # obs. used (total)      2539  
   data-arc span      5469 days (14.97 yr)  
   first obs. used      1996-06-15  
   last obs. used      2011-06-06  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      1  
   fit RMS      .72889  
   data source      ORB  
   producer      Alan B. Chamberlin  
   solution date      2011-Jun-17 12:31:28  

Additional Information
 Earth MOID = .374798 AU 
 T_jup = 2.794 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 9.5 mag 01. K094/9 2 parameter fit from 494 observations, autocmod 2.4d
comet total magnitude slope K1 15.   n/a K094/9 autocmod 2.4d
comet nuclear magnitude M2 13.8 mag 0.8 K094/9 from 1345 observations, autocmod 2.4d
comet nuclear magnitude slope K2 5.   n/a K094/9 autocmod 2.4d
comet nuclear phase coefficient PC 0.03   n/a K094/9 autocmod 2.4d
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 (024)
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 
 1979.9       1978 VI   1977j 
 1973.7       1971 VI   
 1967.6       1965 III   1970o 
 1961.5           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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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