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JPL Small-Body Database Browser
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64P/Swift-Gehrels
Classification: Jupiter-family Comet          SPK-ID: 1000090
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 2458095.5 (2017-Dec-08.0) TDB
Reference: JPL K183/6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6873194552330496 8.0813e-08  
a 4.45615537651515 1.243e-07 au
q 1.393353090694932 3.9089e-07 au
i 8.948390092799494 3.2625e-06 deg
node 300.0009854543124 2.8451e-05 deg
peri 97.14410525137997 4.1965e-05 deg
M 325.3282087274894 4.1333e-06 deg
tp 2458426.412134983940
(2018-Nov-03.91213498)
3.2417e-05 TDB
period 3435.88733728531
9.41
0.00014376
3.936e-07
d
yr
n .104776427356444 4.3838e-09 deg/d
Q 7.518957662335368 2.0973e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -4.288967091959609E-10 1.563E-10
A2 [EST] 4.992406544248472E-10 3.9E-12
  Orbit Determination Parameters
   # obs. used (total)      3425  
   data-arc span      6707 days (18.36 yr)  
   first obs. used      2000-12-22  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44754  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2019-Sep-03 14:46:00  

Additional Information
 Earth MOID = .440161 au 
 Jupiter MOID = .649092 au 
 T_jup = 2.496 
[ 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 14.1   1. K183/6 2 parameter fit from 1127 observations, autocmod 2.8
comet total magnitude slope K1 8.   n/a K183/6 autocmod 2.8
diameter diameter 3.2 km n/a Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H.A. (to be published)  

64P/Swift-Gehrels          Discovered 1889-Nov-16 by Swift, Lewis at Warner Observatory, Rochester, New York
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1990.6       1991 II   1991c 
 1981.2       1981 XIX   1981j 
 1971.8   64P/1973 C1   1972 VII   1973d 
 1887.1   64P/1889 W1   1889 VI   1889f 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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