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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 2457331.5 (2015-Nov-05.0) TDB
Reference: JPL K084/24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .64093009801435 2.9609e-08  
a 3.462505635805988 2.0849e-07 au
q 1.243281559273617 8.5725e-08 au
i 7.040168070284028 1.347e-05 deg
node 50.13500663540592 6.871e-05 deg
peri 12.80065127074631 7.0935e-05 deg
M 12.8359406450424 5.4414e-06 deg
tp 2457247.590842652107
(2015-Aug-13.09084265)
2.9262e-05 JED
period 2353.337202202503
6.44
0.00021256
5.82e-07
d
yr
n .1529742527603243 1.3817e-08 deg/d
Q 5.68172971233836 3.4212e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 9.919855951390668E-10 2.188E-11
A2 [EST] 1.057263467729529E-10 1.809E-13
A3 [EST] 4.00765852820757E-11 3.285E-11
  Orbit Determination Parameters
   # obs. used (total)      5099  
   data-arc span      9970 days (27.30 yr)  
   first obs. used      1988-07-06  
   last obs. used      2015-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .70995  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2015-Oct-26 15:14:49  

Additional Information
 Earth MOID = .257176 au 
 T_jup = 2.746 
[ 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 11.1 mag 1. K084/24 2 parameter fit from 580 observations, autocmod 2.6
comet total magnitude slope K1 12.   n/a K084/24 autocmod 2.6
comet nuclear magnitude M2 13.7 mag 0.8 K084/24 from 3029 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a K084/24 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a K084/24 autocmod 2.6
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. 2015-December); 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 
 1977.0   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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