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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.


:
Orbital Elements at Epoch 2456494.5 (2013-Jul-21.0) TDB
Reference: JPL K215/4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6411631420732412 2.1094e-08  
a 3.463715286017758 1.529e-08 au
q 1.242908709987497 7.4706e-08 au
i 7.043033521644597 2.2216e-06 deg
node 50.16637867326806 2.366e-05 deg
peri 12.74927366520482 2.3301e-05 deg
M 244.8880681903479 2.1336e-06 deg
tp 2457247.386565680058
(2015-Aug-12.88656568)
1.4627e-05 TDB
period 2354.570541766325
6.45
1.5591e-05
4.269e-08
d
yr
n .1528941238387953 1.0124e-09 deg/d
Q 5.68452186204802 2.5094e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.09589104854259E-9 1.092E-11
A2 [EST] -3.450271080332099E-11 2.927E-12
A3 [EST] 3.556882421470097E-10 1.137E-11
DT [EST] 33.46674786650353 .6047
  Orbit Determination Parameters
   # obs. used (total)      6233  
   data-arc span      9519 days (26.06 yr)  
   first obs. used      1995-07-03  
   last obs. used      2021-07-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .73175  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2021-Jul-27 08:49:10  

Additional Information
 Earth MOID = .258317 au 
 Jupiter MOID = .0841448 au 
 T_jup = 2.745 
[ 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 11.2   01. K215/4 2 parameter fit from 1175 observations, autocmod 2.9c
comet total magnitude slope K1 12.   n/a K215/4 autocmod 2.9c
comet nuclear magnitude M2 13.9   0.9 K215/4 from 4048 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a K215/4 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a K215/4 autocmod 2.9c
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. 2020-October); 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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