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JPL Small-Body Database Browser
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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
1.9341e-05 TDB
period 2355.612450811296
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 
[ hide covariance matrix ]
Orbit Covariance (10×10)
  e q tp node peri i A1 A2 A3 DT
e 1.862630693331012E-15 -6.45367566549315E-15 3.712045809944906E-15 1.97258768508127E-14 -1.812734602376649E-13 -1.928514812560827E-15 5.598182148826019E-19 -1.536326671321712E-19 2.633469642333665E-21 1.97954873445416E-8
q -6.45367566549315E-15 2.243114294541916E-14 -9.739865081249583E-14 -4.859943602308131E-14 6.122146581267252E-13 5.305471444135729E-15 -2.005910060652553E-18 5.315370895527846E-19 -1.305592562099077E-20 -6.580430622119345E-8
tp 3.712045809944906E-15 -9.739865081249583E-14 3.740903564286218E-10 -8.829274586123753E-11 1.612630545556122E-10 3.248358290443463E-12 6.611267209642506E-17 -9.019319905912975E-18 2.282084302256651E-18 -6.618479657163521E-7
node 1.97258768508127E-14 -4.859943602308131E-14 -8.829274586123753E-11 2.898176827807255E-9 -2.890875829469457E-9 -4.161860222009982E-11 -1.488475359488099E-17 -2.192925465941947E-18 2.325992726887457E-16 1.555532510253479E-6
peri -1.812734602376649E-13 6.122146581267252E-13 1.612630545556122E-10 -2.890875829469457E-9 2.935665302010587E-9 4.259773267781765E-11 -4.748735727371684E-17 1.595654060514007E-17 -2.344342684986718E-16 -2.991264477348648E-6
i -1.928514812560827E-15 5.305471444135729E-15 3.248358290443463E-12 -4.161860222009982E-11 4.259773267781765E-11 1.444852310061309E-11 2.311650973720645E-18 7.576803741208918E-19 1.295032682238354E-17 -2.991417992077315E-7
A1 5.598182148826019E-19 -2.005910060652553E-18 6.611267209642506E-17 -1.488475359488099E-17 -4.748735727371684E-17 2.311650973720645E-18 3.179924821860413E-22 -4.809995581750152E-23 -8.216471859144823E-25 9.726387839856203E-13
A2 -1.536326671321712E-19 5.315370895527846E-19 -9.019319905912975E-18 -2.192925465941947E-18 1.595654060514007E-17 7.576803741208918E-19 -4.809995581750152E-23 2.02247724323729E-23 -1.088035736302528E-24 -3.457633267557102E-12
A3 2.633469642333665E-21 -1.305592562099077E-20 2.282084302256651E-18 2.325992726887457E-16 -2.344342684986718E-16 1.295032682238354E-17 -8.216471859144823E-25 -1.088035736302528E-24 2.488203120858971E-22 3.11446764916259E-13
DT 1.97954873445416E-8 -6.580430622119345E-8 -6.618479657163521E-7 1.555532510253479E-6 -2.991264477348648E-6 -2.991417992077315E-7 9.726387839856203E-13 -3.457633267557102E-12 3.11446764916259E-13 .8513252137436538

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-August); 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

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Alternate Designations
 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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