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67P/Churyumov-Gerasimenko
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000012
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2456780.5 (2014-May-03.0) TDB
Reference: JPL K084/16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6410532328350245 3.2569e-08  
a 3.463242237470248 1.373e-07 AU
q 1.243119605049142 1.4485e-07 AU
i 7.040848762748019 8.9643e-06 deg
node 50.15180617652601 7.5884e-05 deg
peri 12.773219225972 7.6148e-05 deg
M 288.5790270077859 1.8196e-05 deg
tp 2457247.531305577176
(2015-Aug-13.03130558)
0.00014638 JED
period 2354.088203560486
6.45
0.00013999
3.833e-07
d
yr
n .1529254509051577 9.0943e-09 deg/d
Q 5.683364869891354 2.2532e-07 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.074213166149874E-9 2.317E-11
A2 [EST] 1.064203034631902E-10 6.495E-13
A3 [EST] 1.297521996146775E-10 3.921E-11
  Orbit Determination Parameters
   # obs. used (total)      2924  
   data-arc span      9409 days (25.76 yr)  
   first obs. used      1988-07-06  
   last obs. used      2014-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .75867  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2014-Apr-23 11:45:20  

Additional Information
 Earth MOID = .25582 AU 
 T_jup = 2.745 
[ 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 11.4 mag 1. K084/16 2 parameter fit from 496 observations, autocmod 2.5c
comet total magnitude slope K1 11.   n/a K084/16 autocmod 2.5c
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 Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) 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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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