+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   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 ] [ show orbit diagram ] alternate orbits: [epoch=2013-Jun-02.0] K154/3 (default) [epoch=2002-Sep-03.0] SAO/2002 [epoch=1995-Dec-29.0] SAO/1996 [epoch=1989-Jun-03.0] SAO/1989 [epoch=1982-Nov-07.0] SAO/1982 [epoch=1976-Apr-12.0] SAO/1976 [epoch=1969-Sep-16.0] SAO/1969 Orbital Elements at Epoch 2456445.5 (2013-Jun-02.0) TDB Reference: JPL K154/3 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .641180538092906 2.1482e-08   a 3.463763991035476 2.1391e-08 au q 1.242865931436518 7.5569e-08 au i 7.043449510613212 2.2483e-06 deg node 50.16855470774527 2.6745e-05 deg peri 12.74507421242449 2.6815e-05 deg M 237.4045226131268 2.377e-06 deg tp 2457247.349411419490 (2015-Aug-12.84941142) 1.8921e-05 TDB period 2354.620205116352 6.45 2.1812e-05 5.972e-08 d yr n .1528908990153725 1.4163e-09 deg/d Q 5.684662050634436 3.5106e-08 au Additional Model Parameters  Parameter Value Uncertainty (1-sigma)  A1 [EST] 1.140096931854859E-9 1.167E-11 A2 [EST] -3.411223057087054E-11 2.996E-12 A3 [EST] 3.941666150189035E-10 1.177E-11 DT [EST] 31.84696986913966 .6294   Orbit Determination Parameters    # obs. used (total)      5962      data-arc span      8382 days (22.95 yr)      first obs. used      1995-07-03      last obs. used      2018-06-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .73445      source      ORB      producer      Davide Farnocchia      solution date      2021-Jan-19 13:03:02   Additional Information  Earth MOID = .256437 au   Jupiter MOID = .0841861 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 11.0   1. K154/3 2 parameter fit from 923 observations, autocmod 2.9a comet total magnitude slope K1 12.25   n/a K154/3 autocmod 2.9a comet nuclear magnitude M2 13.9   0.9 K154/3 from 4038 observations, autocmod 2.9a comet nuclear magnitude slope K2 5.   n/a K154/3 autocmod 2.9a comet nuclear phase coefficient PC 0.03   n/a K154/3 autocmod 2.9a 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.dis Last Updated: 2003-08-29 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 1923-Sep-27 00:36 12:25 Jupiter 0.891385409158915 0.888188909136472 0.894584200968647 5.15255930817804 4.96471594114996 2423689.524698396 744.824268087461 175272.149498467 6899.43905257987 23.778971125901 9772.65659439688 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 1928-May-14 18:20 20:50 Jupiter 1.87454956708507 1.87396190860352 1.87514427140361 7.82749176004432 7.76955078955721 2425381.263968666 1249.93891600799 184531.744712906 1439.48450175569 -81.0478533688808 27944.9718505555 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 1959-Feb-04 06:27 00:05 Jupiter 0.0515941840142498 0.0515854326755321 0.0516029372197351 8.18177024153602 5.84014840532785 2436603.768687396 4.63806243990707 828.372098419267 252.72342960612 -59.8731237569828 35363.9527674509 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 1982-Nov-27 14:26 < 00:01 Earth 0.391008729260252 0.391003958075667 0.391013500457128 5.33794221977155 5.3366654753289 2445301.101684051 0.41924393837959 262.941978806782 50.8780261414581 -25.7255817282714 607668.053071617 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 2007-Jul-05 07:10 < 00:01 Jupiter 1.43925077035383 1.4392492543289 1.43925228637883 9.63770648991694 9.57644787052169 2454286.798349939 0.306309524574228 76.8930825322302 33.4540920536297 13.6503356612168 2180661.30806832 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 2018-Nov-11 20:53 < 00:01 Jupiter 0.375492946217012 0.375492332085039 0.375493560349882 5.61027564748183 5.1926553828291 2458434.369936062 0.711591221533207 51.4699775196091 20.497632345326 61.2362825855933 2256777.20204922 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 2021-Nov-12 00:49 < 00:01 Earth 0.418220019969788 0.41821613054404 0.418223909397128 9.25563080065075 9.25494243741762 2459530.533887103 0.246100189929521 198.170370491015 10.8584661180224 -11.9025409357093 1018199.28225121 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 2030-Jan-29 12:50 < 00:01 Jupiter 1.05660620056339 1.056604107833 1.05660829329378 9.04832694635056 8.95929302967243 2462531.034718946 0.815696835226457 114.261829709315 98.50993791866 56.9949835455056 1076865.00849152 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 2034-Nov-28 23:54 < 00:01 Earth 0.451763915876254 0.451753678574067 0.451774153194773 4.75128137190318 4.75003987165359 2464295.495803132 0.988091051517792 528.221002777599 24.7418989993451 -14.8615212632209 603525.277452879 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 2067-Oct-26 07:50 00:11 Mars 0.0670287555345244 0.0669877881304379 0.0670697231154816 10.3065809169303 10.3061664984206 2476314.826447599 10.8516678268346 2050.09704688961 79.640421009945 -4.80644235303911 11779.9164540983 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 2067-Nov-12 18:57 00:04 Earth 0.441643930421941 0.441600116210521 0.44168774805127 4.96153098502502 4.96031486172044 2476332.289292326 3.66747539681776 2921.59845094594 97.081776895568 -41.6192438841828 318233.916832187 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 2078-Jun-15 16:52 00:04 Jupiter 0.331839129488465 0.331834752333502 0.331843506688378 5.75742114235562 5.29555278501987 2480200.202880657 4.28125975492916 365.311727533199 164.428073786718 -62.4448430242356 336274.885755237 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 2080-Nov-01 22:12 00:05 Earth 0.495977493269389 0.4959372670681 0.49601772082558 3.04161425129883 3.03984751227199 2481070.424783854 4.55561295292359 2389.33072115129 178.160670575058 -32.8708373285485 160718.685100261 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 2089-May-11 04:57 00:04 Jupiter 1.79906932346481 1.79906430897602 1.79907433800371 11.0305712603414 10.9878059384788 2484182.706360945 4.49123122799388 643.872812983133 149.677834732012 71.5473345375755 1212837.84551972 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 2114-Nov-07 23:36 00:05 Earth 0.444491090512267 0.444448463098898 0.444533720644578 2.73690438933851 2.73471328252885 2493493.483449962 4.71113175897305 2748.04222105418 196.147528663698 -39.3686294751661 194284.932966731 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 2125-Oct-13 17:19 00:10 Jupiter 0.402191650601229 0.402185577750254 0.402197723657139 5.53381963916199 5.13917556506395 2497486.221711888 10.1002243898011 581.321933051559 101.500386423549 -59.3924868128069 706097.958019434 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 2161-Jul-25 18:25 00:09 Jupiter 0.541289211927085 0.541231116223759 0.541347307877299 7.48304398037856 7.27092144083298 2510555.267646432 8.99277342207726 2954.99565374287 179.892080350195 14.5259954480153 96290.9451652283 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 2172-Mar-01 11:55 00:19 Jupiter 0.638323118297363 0.638307568787585 0.638338669176118 7.01569574389617 6.82393492459168 2514426.996679661 18.7376624239554 2898.32411941862 652.591560854796 82.3762753498463 138210.791654036 T K154/3 CATAB v2.0f-lin.ifort 2021-Jan-19 13:12:01 2021-Jan-19 13:12 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 ] 2021-Feb-28 07:44 UT (server date/time)   Site Manager:   Ryan S. 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