+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   6P/d'Arrest Classification: Jupiter-family Comet          SPK-ID: 1000017 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] alternate orbits: [epoch=2009-01-10.0] K085/10 (default) [epoch=2002-02-15.0] SAO/2002 [epoch=1995-07-22.0] SAO/1995 [epoch=1989-02-03.0] SAO/1989 [epoch=1982-09-28.0] SAO/1982 [epoch=1976-08-10.0] SAO/1976 [epoch=1970-05-14.0] SAO/1970 [epoch=1963-10-18.0] SAO/1963 [epoch=1950-06-08.0] SAO/1950 [epoch=1943-10-03.0] SAO/1943 [epoch=1923-09-18.0] SAO/1923 [epoch=1910-09-06.0] SAO/1910 [epoch=1897-06-05.0] SAO/1897 [epoch=1890-09-30.0] SAO/1890 [epoch=1877-05-21.0] SAO/1877 [epoch=1870-09-15.0] SAO/1870 [epoch=1857-11-22.0] SAO/1857 [epoch=1851-07-17.0] SAO/1851 [epoch=1678-07-03.0] SAO/1678 Orbital Elements at Epoch 2454841.5 (2009-Jan-10.0) TDB Reference: JPL K085/10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.6127725932831010746681 6.8161e-08   a 3.4953664084492062080755 4.9037e-07 AU q 1.3535016698691471059845 1.5877e-07 AU i 19.515058152217129361361 7.384e-06 deg node 138.9372240555536 1.1618e-05 deg peri 178.1263147955168 3.74e-05 deg M 22.32686360218781 4.9143e-06 deg tp 2454693.465579595856 (2008-Aug-14.96557960) 4.3849e-05 JED period 2386.917943112696 6.54 0.0005023 1.375e-06 d yr n .1508221097582167 3.1739e-08 deg/d Q 5.637231147029265 7.9086e-07 AU Additional Model Parameters  Parameter Value Uncertainty (1-sigma)  A1 [EST] 3.587418997128921E-9 2.242E-11 A2 [EST] -7.337118937198674E-11 5.596E-12 A3 [EST] -6.750179310332464E-10 1.381E-11 DT [EST] 100.7173176365439 1.106   Orbit Determination Parameters    # obs. used (total)      2157      data-arc span      9794 days (26.81 yr)      first obs. used      1982-04-23      last obs. used      2009-02-14      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .6282      data source      ORB      producer      Nick Mastrodemos      solution date      2009-Feb-20 13:33:45   Additional Information  Earth MOID = .341595 AU   T_jup = 2.710  [ 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. K085/10 2 parameter fit from 234 observations, autocmod 2.4a comet total magnitude slope K1 34.   n/a K085/10 autocmod 2.4a comet nuclear magnitude M2 16.4 mag 1. K085/10 from 1521 observations, autocmod 2.4a comet nuclear magnitude slope K2 5.   n/a K085/10 autocmod 2.4a comet nuclear phase coefficient PC 0.03   n/a K085/10 autocmod 2.4a diameter diameter 3.2 km n/a DASTCOM value unverified 6P/d'Arrest          Discovered 1851-Jun-28 by d'Arrest, Heinrich Louis at Leipzig, Germany 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 1908-Nov-30 13:29 00:09 Jupiter 1.31670090216795 1.3164740242671 1.3169277544913 10.0274912615423 9.96313193442446 2418276.062491080 9.31292636633704 2680.73317754653 42.3818304011177 -3.52132422752897 47390.2931514865 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 1920-Mar-09 19:05 00:22 Jupiter 0.495173136179833 0.495139194357204 0.495207091572543 6.0272183003351 5.73639640942805 2422393.295262918 22.9159796927819 464.423890632139 41.9785706228364 66.2933818098355 161466.645562749 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 1968-Mar-19 15:23 00:01 Jupiter 0.407328394266133 0.407307337079995 0.407349451282423 7.49916206686699 7.21654449763764 2439935.141181408 1.97179921760078 136.93110780812 21.7342984585411 1.74509224553666 55955.0836076963 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 1976-Aug-12 22:55 00:01 Earth 0.151242168092459 0.151240110989254 0.151244234966778 11.2098382323952 11.2082665291102 2443003.455399728 1.80409915518285 1508.92751246426 28.8595734761132 87.6199410617477 555345.264220666 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 1979-Jul-22 05:08 00:02 Jupiter 0.298463309349982 0.298456639796176 0.29846997914993 6.34990517823411 5.88603476353229 2444076.714446472 2.10468969453554 56.8970236368683 11.893819495458 56.421175485491 329634.514944228 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 1990-Dec-01 20:26 < 00:01 Jupiter 1.3636697518297 1.36366169560703 1.36367780803111 8.98224656030945 8.91282693464 2448227.351748586 0.33140080487598 79.3779746815286 12.0126525966009 11.4959700548938 625532.177359628 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 1995-Aug-10 17:43 < 00:01 Earth 0.407278007067949 0.407277214558367 0.407278799577615 11.3554611483708 11.35488500889 2449940.238851523 0.0631030953444792 30.8804510034628 16.3565240588401 0.416526437878594 1408153.08300972 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 2008-Aug-09 11:53 < 00:01 Earth 0.353760843050543 0.353760459838058 0.353761226262956 11.0555889366329 11.0549076433722 2454687.995213498 0.0489243307558423 16.9750149204543 5.3680631176096 -4.84019730312141 2264608.54375178 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 2039-Apr-01 20:17 00:01 Jupiter 0.967607792995395 0.967590418180363 0.967625167711649 8.68441753383393 8.58302697078139 2465880.345378539 1.48787530765855 148.627824574346 37.7335733069216 -8.20637114968039 159257.545230417 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 2047-Aug-07 09:45 < 00:01 Earth 0.316799431428271 0.316755709959387 0.316843159497418 12.1247052292225 12.1240115332142 2468929.906569654 0.98550238708909 2495.89738927322 105.816571036158 45.6078598707119 235784.681014707 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 2050-Sep-11 11:23 00:02 Jupiter 0.251868389987611 0.251862957709024 0.251873822493156 6.4630441161635 5.91988390738032 2470060.974926813 2.22810976382207 62.8572611528709 20.006640701032 70.2577617519049 189438.975834209 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 2062-Jan-12 13:45 00:01 Jupiter 1.91250424632033 1.91243272769577 1.91257576320786 10.2860585404991 10.2429110639454 2474202.073555213 1.89977004618921 879.750032921916 42.6064761564999 6.06970787747177 131499.603930714 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 2098-Mar-24 04:19 00:04 Jupiter 1.98501161721188 1.98489026634439 1.98513296246687 11.4994201859733 11.46225311175 2487421.680121524 4.04438543900668 1827.10418286842 45.1637754676609 -5.92548057634539 130978.764735211 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 2106-Aug-08 10:08 00:03 Earth 0.410497779796072 0.410453828742475 0.410542015071516 11.3417374786302 11.3411651665562 2490479.922851036 3.46345660633859 12377.5457201419 259.032558193826 82.6361736083848 167693.583440521 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 2109-Nov-21 00:59 00:11 Jupiter 0.301427776238976 0.301381140941101 0.301474429725032 6.32487586378523 5.86378590357233 2491680.541516602 11.5860812480479 435.722589920351 23.351126316249 59.3732392586385 172948.81782245 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 2156-Nov-07 13:07 00:11 Jupiter 0.735112741541111 0.735054204332611 0.735171281821709 6.29116580385088 6.10526800605738 2508834.046743759 11.7214808210553 491.901454299877 109.305907957644 44.4047094959909 75348.1235949689 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 2192-Nov-01 14:10 00:10 Jupiter 0.271987826482162 0.271940406134767 0.272035254270687 6.37403871770747 5.86514994993821 2521977.090384410 10.3046590696503 331.871212493659 123.507644206723 55.0803909860107 29214.1828424771 T K085/10 CATAB v2.0b-linF95 2009-Feb-20 14:05:02 2009-Feb-20 14:05 Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   1989.0       1989 II   1987k   1982.5       1982 VII   1982e   1975.9       1976 XI   1976e   1969.4       1970 VII   1970d   1962.9       1963 VII   1963f   1949.8       1950 II   1950a   1943.3       1943 III     1923.7       1923 II   1923b   1910.6       1910 III   1910c   1897.5       1897 II   1897a   1891.0       1890 V   1890d   1877.9       1877 IV   1877d   1871.4       1870 III   1870c   1858.3   6P/1857 X1   1857 VII     1851.8   6P/1851 M1   1851 II     1675.3   6P/1678 R1   1678     [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-May-24 02:19 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin