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JPL Small-Body Database Browser
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52P/Harrington-Abell
Classification: Jupiter-family Comet          SPK-ID: 1000039
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 2455348.5 (2010-Jun-01.0) TDB
Reference: JPL K145/8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .539617075598499 1.6189e-07  
a 3.857008463577364 8.515e-08 au
q 1.775700835903087 6.3985e-07 au
i 10.22565162735523 9.4236e-06 deg
node 336.8686694013297 7.8999e-05 deg
peri 139.6709936590744 0.00010647 deg
M 180.8169904899616 1.6921e-05 deg
tp 2456725.610027045599
(2014-Mar-09.11002705)
0.00014784 TDB
period 2766.778005861329
7.58
9.1622e-05
2.508e-07
d
yr
n .130115245689156 4.3088e-09 deg/d
Q 5.938316091251641 1.311e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.812871864310003E-10 1.769E-10
A2 [EST] 5.922660648615227E-11 1.432E-12
  Orbit Determination Parameters
   # obs. used (total)      1295  
   data-arc span      11222 days (30.72 yr)  
   first obs. used      1983-09-17  
   last obs. used      2014-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59559  
   source      ORB  
   producer      Javier Roa  
   solution date      2020-Mar-09 10:58:06  

Additional Information
 Earth MOID = .806369 au 
 Jupiter MOID = .0335074 au 
 T_jup = 2.776 
[ 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 7.9   1. K145/8 2 parameter fit from 245 observations, autocmod 2.8
comet total magnitude slope K1 25.   n/a K145/8 autocmod 2.8
comet nuclear magnitude M2 15.5   0.7 K145/8 from 727 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a K145/8 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a K145/8 autocmod 2.8
diameter diameter 2.6 km n/a Lamy,P.L.;Toth,I.;Fernandez,Y.R.;Weaver,H.A.; (2004) Comets II, pp. 223-264  

52P/Harrington-Abell          Discovered 1955-Mar-22 by Harrington, R.G. and Abell, GeorgeO. at Palomar Mountain Observatory, California
discovered on plate/photo taken on discovery date
Reference: comet.disLast Updated: 2003-08-29

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Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1991.5       1991 X   1990m 
 1983.9       1983 XVII   1983r 
 1976.3       1976 VIII   1975l 
 1968.7       1969 III   1968i 
 1961.2   52P/1962 B1   1962 II   1962a 
 1953.6   52P/1955 F1   1954 XIII   1955a 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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