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JPL Small-Body Database Browser
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67P/Churyumov-Gerasimenko
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000012
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 2455493.5 (2010-Oct-24.0) TDB
Reference: JPL K154/2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6405847372930017 4.3158e-08  
a 3.46473701803964 2.3334e-08 au
q 1.245279365549379 1.4977e-07 au
i 7.043698689343029 3.8011e-06 deg
node 50.18000114437616 5.3835e-05 deg
peri 12.69446404906225 5.4182e-05 deg
M 92.07346224536946 2.5955e-06 deg
tp 2454891.029460959733
(2009-Feb-28.52946096)
1.9341e-05 TDB
period 2355.612450811296
6.45
2.3796e-05
6.515e-08
d
yr
n .152826497362082 1.5438e-09 deg/d
Q 5.684194670529901 3.8281e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.066669918189136E-9 1.783E-11
A2 [EST] -3.689152186829759E-11 4.497E-12
A3 [EST] 2.483436017455598E-10 1.577E-11
DT [EST] 35.07142445377104 .9227
  Orbit Determination Parameters
   # obs. used (total)      6326  
   data-arc span      7969 days (21.82 yr)  
   first obs. used      1995-07-03  
   last obs. used      2017-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64138  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2018-Feb-28 15:34:48  

Additional Information
 Earth MOID = .259321 au 
 Jupiter MOID = .0836959 au 
 T_jup = 2.746 
[ 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 11.3   1. K154/2 2 parameter fit from 764 observations, autocmod 2.6m
comet total magnitude slope K1 11.   n/a K154/2 autocmod 2.6m
comet nuclear magnitude M2 13.9   0.9 K154/2 from 4038 observations, autocmod 2.6m
comet nuclear magnitude slope K2 5.   n/a K154/2 autocmod 2.6m
comet nuclear phase coefficient PC 0.03   n/a K154/2 autocmod 2.6m
diameter diameter 4.0 km n/a Lamy,P.L.;Toth,I.;Fernandez,Y.R.;Weaver,H.A. (2004) Comets II, pp. 223-264  
rotation period rot_per 12.76137 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Lowry, S.; Duddy, S.R.; Rozitis, B.; Green, S.F.; et al. (2012) Astron. Astrophys. 548, A12.]

67P/Churyumov-Gerasimenko          Discovered 1969-Oct-22 by Churyumov, Klim Ivanovic at Alma-Ata Observatory, Russia
discovered on plate/photo taken on 9/11
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1989.8       1989 VI   1988i 
 1983.4       1982 VIII   1982f 
 1976.9   67P/1975 P1   1976 VII   1975i 
 1970.5   67P/1969 R1   1969 IV   1969h 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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