Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
43P/Wolf-Harrington
Classification: Jupiter-family Comet          SPK-ID: 1000111
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Nov-23 08:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin