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96P/Machholz 1
Classification: Jupiter-family Comet* [NEO]          SPK-ID: 1000061
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2454773.5 (2008-Nov-03.0) TDB
Reference: JPL K173/5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9592074836894154 4.3922e-08  
a 3.032767858374081 3.0673e-08 au
q .1237142323289413 1.3326e-07 au
i 58.53858182853028 5.7212e-05 deg
node 94.35081293062883 1.4304e-05 deg
peri 14.7463138854509 1.861e-05 deg
M 107.7407308761973 1.9003e-06 deg
tp 2454196.156080118566
(2007-Apr-05.65608012)
1.3023e-05 TDB
period 1929.110833637702
5.28
2.9266e-05
8.013e-08
d
yr
n .1866144721820633 2.8311e-09 deg/d
Q 5.94182148441922 6.0094e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 7.035676975844572E-11 9.644E-11
A2 [EST] -1.76259481435609E-12 4.681E-14
A3 [EST] -2.102047080596514E-10 1.145E-10
  Orbit Determination Parameters
   # obs. used (total)      963  
   data-arc span      3829 days (10.48 yr)  
   first obs. used      2007-04-09  
   last obs. used      2017-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6452  
   source      ORB  
   producer      Javier Roa  
   solution date      2020-Jun-02 14:02:54  

Additional Information
 Earth MOID = .334629 au 
 Jupiter MOID = .612925 au 
 T_jup = 1.941 
[ 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 13.4   2. K173/5 2 parameter fit from 136 observations, autocmod 2.8
comet total magnitude slope K1 11.25   n/a K173/5 autocmod 2.8
diameter diameter 6.4 km n/a Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H.A. (2004) Comets II, pp. 223-264  

96P/Machholz 1          Discovered 1986-May-12 by Machholz, Donald E. at San Jose, California
Reference: comet.disLast 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
1902-Jun-09 03:46 00:34 Earth 0.465624882383805 0.465489051089672 0.465761481915826 38.9498047120513 38.9496577951666 2415909.656684009 34.3132114265355 31364.3592964035 1538.36173468986 77.8074959697806 44673.3617433904 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
1913-Sep-17 12:43 00:31 Jupiter 1.55739387518268 1.55723050412524 1.55755724661557 18.695964024546 18.6668510287178 2420028.030033107 31.2651131616868 8288.86322782021 4868.96137194271 13.5204670497573 23161.8364189999 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
1923-Jun-18 09:29 00:27 Earth 0.465809379832131 0.465708859980446 0.46591025435337 44.703418167955 44.7032902109646 2423588.895195441 27.0766871560285 21509.5287417372 1239.03345079403 -76.9027636843617 54741.5022962639 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
1925-Feb-16 07:14 00:08 Jupiter 0.838828780750393 0.838692937957561 0.8389646238564 12.7267431148564 12.647152018504 2424197.801700440 8.48648165263218 6833.82704262157 3103.14696045597 8.28359839936224 20176.0572592586 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
1937-Mar-17 01:34 00:11 Jupiter 1.56313870837471 1.56303636719625 1.56324105134953 12.3981627584488 12.354379546184 2428609.565143301 10.9012956891818 5863.17287589778 2036.50624215274 31.7425389028977 69887.3627332796 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
1944-Jun-12 09:06 00:16 Earth 0.401763595986328 0.401740369281731 0.40178691091323 41.2970255809445 41.296864988967 2431253.879053100 15.6049114895129 13510.4745899097 831.58432649359 86.559033633046 72245.3662776677 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
1961-Jan-10 22:54 00:09 Jupiter 1.17868832025339 1.17863360395396 1.17874303715911 17.2714859407017 17.2298287166016 2437310.454480257 9.26709198047744 3406.36962849031 2057.22321868208 48.8137948698352 61041.5641670729 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
1965-Jun-03 22:38 00:07 Earth 0.461731638970632 0.461654456243314 0.461808858384046 35.589338301085 35.5891761559965 2438915.443352608 7.16745603126422 7625.08468216613 640.823002753088 60.0264650607375 94813.1058977402 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
1972-Aug-03 10:43 00:05 Jupiter 1.0888786623048 1.08882424446517 1.08893308068496 12.2650031945147 12.2014152092596 2441532.946665031 4.82679189520649 2988.69397551316 679.182229560327 25.4778369448231 120668.163915549 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
1984-Sep-04 22:12 00:05 Jupiter 1.57951935648236 1.57948161171941 1.57955710140001 12.8617064195645 12.8199448267798 2445948.425220259 4.55464144383704 2045.46792777814 417.786532218714 23.683893235359 225443.00202933 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
1986-Jun-06 02:11 00:02 Earth 0.403850619661409 0.403829084654457 0.403872157892958 36.8748873090758 36.8747083878129 2446587.590796116 2.1184830465727 2160.14322440544 300.287698688141 61.1828750975787 177956.269165933 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2008-May-13 18:20 < 00:01 Jupiter 0.868683116782525 0.868680131325992 0.868686102239059 15.9694570299822 15.9082817363652 2454600.263948233 0.578753837451444 152.462715801776 139.73988980546 -33.979346321477 713441.336008633 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2020-Jan-28 22:40 00:02 Jupiter 1.26334551792717 1.26333159243873 1.26335944348152 12.0074215704872 11.9514540103536 2458877.444598281 2.18021774469185 832.372228489008 74.1104396931909 33.6309807111605 1200304.9359379 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2028-Jun-16 10:56 00:02 Earth 0.31969029329408 0.319683657784599 0.319696929690024 44.0484869345124 44.0482977206964 2461938.955276611 1.68238971916005 1265.06826211181 240.298475616653 -79.445763529775 195373.9420114 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2032-Feb-20 20:25 00:03 Jupiter 1.57108100593348 1.57105204295675 1.5711099689497 13.232655535398 13.1918499602216 2463283.350480597 3.11666210752835 1506.21846451407 564.077476594872 17.9639430982035 186382.615156334 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2049-Jun-24 20:20 00:08 Earth 0.363172010461305 0.363103291481926 0.363240755189393 48.9431109686167 48.942961066046 2469617.347489327 8.40265410613473 5951.57815857883 457.281328805159 -55.0808743699381 96821.2056575002 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2055-Oct-15 02:51 00:08 Jupiter 0.832341888833952 0.832304830865128 0.83237894681839 15.6325476965315 15.5673142195815 2471920.619047833 8.02771368506279 2955.88721373182 1838.67314753215 86.0510201466697 59462.6522063164 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2067-Jul-16 13:21 00:11 Jupiter 1.29809133018772 1.29801750855398 1.29816515356875 11.9406770787619 11.8859051605292 2476213.056298413 10.863136182955 4391.55822651877 404.008053814465 33.2096299339586 274526.391203358 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2079-Aug-13 09:26 00:10 Jupiter 1.51082318018305 1.51073278944379 1.51091357226402 13.0781368015429 13.0351980935315 2480623.893123982 10.4720461836199 5948.69823771766 3671.46240753823 56.1584868031668 52753.3133850161 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2086-Jun-25 19:57 00:32 Earth 0.336521990657768 0.336210386963006 0.336833904052364 49.7362874447626 49.7361282509301 2483132.331084274 31.5399812686916 22397.2770275573 861.245837716032 -46.0878685238232 41774.5529407318 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2103-Apr-16 03:04 00:32 Jupiter 0.999524610716778 0.999369224482276 0.999680012016262 16.2564575303089 16.2042451440737 2489269.627768558 31.9895595518415 10597.9221185115 4099.26327545799 47.841314460597 24151.9375063153 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2114-Dec-18 11:24 00:23 Jupiter 1.22509139497354 1.22492812545667 1.22525466619545 12.0424917110843 11.9849412128562 2493533.975075713 23.2989223487571 8495.79344434458 2798.50679179748 17.4774053791305 32785.8311215773 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2127-Feb-02 12:35 00:21 Jupiter 1.45603364527466 1.45589130472502 1.4561759883744 12.5543384017929 12.5079153788849 2497963.024028500 20.5403758498959 11398.4760150873 6670.06208533783 74.8817470337243 31130.0525707029 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2139-Jun-14 04:27 01:07 Earth 0.178043423768027 0.177807601685871 0.178285611990294 41.5000289728787 41.4996683611012 2502477.685603639 66.7193700004923 54965.7208063291 1729.65401368473 77.6053006961453 15021.7845763419 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2150-Nov-09 17:03 01:09 Jupiter 1.35367489201473 1.35332888365549 1.35402092516746 17.6792430944009 17.6438146334998 2506644.210234571 68.933438158332 19801.3770471088 5796.37086419433 31.0111319823169 15898.8564524226 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2162-May-20 16:59 00:27 Jupiter 1.07330967514091 1.07303674239014 1.07358261078346 12.4190859796069 12.355377734209 2510854.207567061 27.3090027555191 13967.9154446217 6412.25805567181 -14.2509296399094 13980.7379697479 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2174-Jul-08 23:01 00:42 Jupiter 1.44634561780639 1.44615241849701 1.44653881895337 12.0892681039724 12.0407285697532 2515286.459071388 41.7954563688646 14547.4705546685 9360.12233350252 78.2625166886228 22507.8799040227 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2176-Jul-05 22:35 01:50 Earth 0.437938218916755 0.436657508136101 0.439219456935841 56.1745951139824 56.174486806122 2516014.440747156 110.098661160048 68226.6140636465 1773.40541805217 -20.5766781668744 12861.7990903294 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2186-Feb-12 06:39 01:30 Jupiter 1.96055106839175 1.96012934269451 1.96097284282374 16.9044812539616 16.8789046064716 2519522.776891980 90.4414686171848 27096.0618277943 9020.7020912357 42.0781300827316 18137.9167052389 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2192-Jun-08 12:02 01:40 Earth 0.206401024627008 0.204962090150765 0.207845050180036 38.1894433752085 38.1891053422071 2521831.001155489 99.8800576199399 88225.0209069171 2748.5738145414 35.4565419954287 6559.80427609706 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12
2198-Jun-11 00:43 01:44 Jupiter 1.73565837392926 1.73517074784106 1.73614601503303 19.1938835420811 19.1684412763376 2524024.529629027 103.558884498915 25747.6050310479 7407.85150914447 20.2543482638596 11631.2595679655 T K173/5 CATAB v2.0f-lin.ifort 2020-Jun-02 14:12:01 2020-Jun-02 14:12

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1991.4       1991 XII   
 1986.1   96P/1986 J2   1986 VIII   1986e 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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