+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   41P/Tuttle-Giacobini-Kresak Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000100 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] alternate orbits: [epoch=2006-03-27.0] K064/9 (default) [epoch=2001-01-11.0] SAO/2001 [epoch=1995-07-22.0] SAO/1995 [epoch=1990-01-29.0] SAO/1990 [epoch=1979-01-07.0] SAO/1978 [epoch=1973-06-07.0] SAO/1973 [epoch=1962-04-06.0] SAO/1962 [epoch=1951-04-24.0] SAO/1951 [epoch=1907-05-25.0] SAO/1907 [epoch=1858-05-01.0] SAO/1858 Orbital Elements at Epoch 2453821.5 (2006-Mar-27.0) TDB Reference: JPL K064/9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.66041266487128 1.8685e-07   a 3.08544379187977 1.1041e-06 AU q 1.0477776349739 4.9568e-07 AU i 9.22802804858441 1.7428e-05 deg node 141.0929309253469 9.897e-05 deg peri 62.19321855938809 0.00011031 deg M 346.0350247582312 9.7678e-06 deg tp 2453898.291394626303 (2006-Jun-11.79139463) 4.3788e-05 JED period 1979.588333446096 5.42 0.0010626 2.909e-06 d yr n .1818559919340941 9.7612e-08 deg/d Q 5.123109948785627 1.8332e-06 AU Additional Model Parameters  Parameter Value Uncertainty (1-sigma)  A1 [EST] 1.347275892411626E-8 1.037E-10 A2 [EST] 3.306726601796261E-9 1.319E-12   Orbit Determination Parameters    # obs. used (total)      506      data-arc span      4229 days (11.58 yr)      first obs. used      1995-01-28      last obs. used      2006-08-27      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      1      fit RMS      .96617      data source      ORB      producer      Nick Mastrodemos      solution date      2006-Dec-14 10:23:08   Additional Information  Earth MOID = .135384 AU   T_jup = 2.828  [ 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 11.8 mag 2. K064/9 2 parameter fit from 125 observations, autocmod 2.3 comet total magnitude slope K1 29.   n/a K064/9 autocmod 2.3 comet nuclear magnitude M2 17.0 mag 0.8 K064/9 from 277 observations, autocmod 2.3 comet nuclear magnitude slope K2 5.   n/a K064/9 autocmod 2.3 comet nuclear phase coefficient PC 0.03   n/a K064/9 autocmod 2.3 diameter diameter 1.4 km n/a Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H.A. (2004) Comets II, pp. 223-264   41P/Tuttle-Giacobini-Kresak          Discovered 1858-May-03 by Tuttle, Horace at Harvard College Observatory, Massachusetts 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 1904-Jun-22 09:12 01:26 Jupiter 0.509015260114569 0.50856755920012 0.50946304522961 6.32868994455557 6.06005225541362 2416653.8836 86.6451909030605 2132.65307513009 196.18995835729 -12.3105450643214 9174.67990457792 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 1916-Dec-11 00:20 00:18 Jupiter 1.10192242282227 1.10120570589908 1.10263923961206 8.36950251957608 8.27715036821922 2421208.51431 18.3605114066337 9352.12526727081 24.6063671946221 32.7259275648573 502085.460031914 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 1963-Oct-01 06:45 00:13 Jupiter 1.73895992273085 1.73855515634422 1.73936461979426 12.1945499676645 12.1545414345848 2438303.78157 13.1170766003313 6387.84052278049 110.525174715423 6.3261739565568 52109.3110391539 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 1975-Jun-07 21:31 00:06 Jupiter 0.363648644822239 0.363634404853945 0.363662894243015 6.99329959917736 6.65189992902877 2442571.39712 6.37016334135637 357.817342887955 46.9469379224891 -85.4870321517061 133521.334300154 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 1988-Feb-15 12:04 00:04 Jupiter 0.671391844476599 0.671382996776442 0.671400692626843 7.01011200959859 6.82777317409336 2447207.00335 4.08747062964699 145.92617978868 22.1497623457385 55.7001764231593 437938.408123685 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 2017-Apr-05 13:50 00:03 Earth 0.148215015105417 0.14820266329469 0.148227368217082 8.3761267530051 8.37398024475784 2457849.07657 3.54407171845956 451.343048681735 34.9181166859624 47.874870477672 283512.91065439 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 2034-Nov-29 11:08 00:03 Jupiter 1.78235234002889 1.78225521688257 1.78244945968057 12.3642447163878 12.3257491762163 2464295.96427 3.27063680929229 1555.29682991824 68.0520525472362 10.8804897820372 153435.525229764 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 2046-Aug-31 20:42 00:13 Jupiter 0.493336037451014 0.493300416501244 0.493371671904657 6.64380000579299 6.38014280340778 2468589.36314 13.8824317896525 391.022687865961 52.053484122155 -75.3842411220802 151154.388519412 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 2059-May-10 14:52 00:08 Jupiter 0.668336352838042 0.668103143098535 0.668569621712225 8.02715853464341 7.86769056395325 2473224.11979 8.59293543701337 2780.26024955889 48.6640002057213 40.3333681395939 176556.61883 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 2088-Jan-20 06:06 00:52 Mars 0.0681759727079988 0.0674874584995381 0.0689033977674301 17.7537913505475 17.7535548206699 2483705.75471 52.9402808213141 85512.5234423799 251.387690279248 -66.2928730802841 35740.5734523378 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 2093-Feb-12 04:52 00:40 Earth 0.492716851863037 0.490483348415158 0.494950934941474 24.0390073594955 24.0387824020149 2485555.70324 40.2945164336841 113674.235376107 52.8051116756928 -14.6639673211243 320476.63987241 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 2105-Dec-27 07:42 00:57 Jupiter 0.561247471932219 0.561210639426396 0.561284928293555 6.83158527648102 6.6069812078078 2490255.82112 57.5133019531901 3422.04170269712 51.0673067798599 73.9817343805608 179077.714309049 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 2118-Sep-02 19:05 00:30 Jupiter 0.667279655273621 0.665678499427612 0.668880979559678 8.53664075465859 8.38662638294261 2494888.29522 30.205185260048 17201.5479702955 49.830621328838 30.426606052579 142808.553054019 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 2120-May-24 11:18 05:09 Earth 0.0965129887443062 0.0930050986080338 0.100222602315891 13.1616129863069 13.1595152442565 2495517.97115 309.408377258441 233186.088660621 180.171348470234 -48.8843923075444 46045.0736772853 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 2136-Feb-15 08:24 01:50 Earth 0.4268409817752 0.421801688607216 0.431890739807377 22.4523116071228 22.4520335795478 2501262.85044 110.099949246094 267820.943499307 311.332535233845 -22.3246599945494 69766.340752946 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 2153-Jul-01 03:22 00:57 Jupiter 1.46626020707884 1.46524540120571 1.46727449877566 10.9258548870866 10.8728539996719 2507608.64028 57.956759356496 14302.9089715975 57.8627117779875 7.19041130549096 84583.2058313735 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 2165-Dec-15 02:16 00:25 Jupiter 0.468206745340318 0.468198490459105 0.468215017002722 6.64679885395092 6.36881299346329 2512158.59503 25.5831038084473 580.380329823713 46.1902378762831 76.9742764498577 162709.006434676 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 2177-Sep-14 18:28 00:39 Jupiter 1.95918095013438 1.95828719233812 1.96007441416504 13.2136599588618 13.1809005560077 2516450.26963 39.1858736520074 16415.2244982041 110.531417511062 10.0561247851275 99892.2691340261 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 2184-Jun-13 22:40 01:03 Earth 0.490145821043784 0.486777034904583 0.493513810476723 24.0265006581395 24.026274402938 2518914.44462 63.2789544283017 164507.253702644 213.794466185111 -1.89271123751758 10254.1570627239 T K064/9 CATAB v2.0b-linF95 2006-Dec-14 10:37:02 2006-Dec-14 10:37 Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   1990.2       1990 II   1989b1   1979.3       1978 XXV   1978r   1973.9       1973 VI   1973b   1963.1       1962 V   1962b   1952.2   41P/1951 H1   1951 IV   1951f   1908.9   41P/1907 L1   1907 III   1907c   1860.1   41P/1858 J1   1858 III    [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-May-19 02:53 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin