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

[ show orbit diagram ]
:
Orbital Elements at Epoch 2456541.5 (2013-Sep-06.0) TDB
Reference: JPL 53 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9592118287498192 4.6985e-08  
a 3.033939724939583 2.4505e-08 AU
q .123748853063562 1.4281e-07 AU
i 58.31221423529453 4.4922e-05 deg
node 94.32323631127545 1.1819e-05 deg
peri 14.75774840136655 2.0956e-05 deg
M 77.99276065152682 2.7032e-06 deg
tp 2456123.322519416551
(2012-Jul-14.82251942)
1.1525e-05 JED
period 1930.229059113251
5.28
2.3385e-05
6.402e-08
d
yr
n .1865063621855244 2.2596e-09 deg/d
Q 5.944130596815604 4.801e-08 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.069808969190584E-10 1.742E-11
A2 [EST] -9.383180682535005E-13 6.311E-15
  Orbit Determination Parameters
   # obs. used (total)      1090  
   data-arc span      9642 days (26.40 yr)  
   first obs. used      1986-05-13  
   last obs. used      2012-10-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .74534  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2013-Aug-27 09:43:17  

Additional Information
 Earth MOID = .333731 AU 
 T_jup = 1.942 
[ 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 13.3 mag 1. 53 2 parameter fit from 163 observations, autocmod 2.5c
comet total magnitude slope K1 11.   n/a 53 autocmod 2.5c
comet nuclear magnitude M2 16.5 mag 1. 53 from 737 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 53 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 53 autocmod 2.5c
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 06:56 00:02 Earth 0.464944971634575 0.464924421227444 0.464965537008898 39.0352569967306 39.03511018709 2415909.788590295 1.57281096926758 4215.34377223044 281.003644279755 78.0931096124919 232894.290430708 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
1913-Sep-17 15:40 00:01 Jupiter 1.55832652996977 1.55830384697235 1.55834921279755 18.6994793687541 18.6703892888074 2420028.152874830 1.40495416179933 482.387541007879 259.118367655593 13.7786926407763 154652.71236321 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
1923-Jun-18 12:09 00:01 Earth 0.466413014833162 0.466400213411478 0.466425820484627 44.7723421613967 44.7722145667361 2423589.006004559 1.00057043759616 2390.66409515714 227.107629098092 -74.9905347266792 288029.572506194 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
1925-Feb-16 07:23 < 00:01 Jupiter 0.838406232374258 0.838384395804103 0.838428069005418 12.727823170758 12.6481986348898 2424197.807442401 0.483309273653999 226.450875104624 106.657178722019 18.0170954668764 133572.886249511 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
1937-Mar-17 01:14 < 00:01 Jupiter 1.56308492504303 1.56306787268221 1.56310197743588 12.3976423375331 12.3538557716026 2428609.551573754 0.790984878884136 202.071202360953 48.7757441016119 27.8502330137072 501375.171730814 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
1944-Jun-12 10:38 < 00:01 Earth 0.401685765715091 0.401682367912931 0.401689163755226 41.3379340092568 41.3377735451179 2431253.943176734 0.480558215574187 1192.20825550804 150.289931634206 87.6929366535504 385706.083417283 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
1961-Jan-10 23:49 < 00:01 Jupiter 1.17897782262183 1.1789718840836 1.17898376115509 17.2725681570929 17.2309237901481 2437310.492109462 0.228098959380549 147.974006850626 94.3471088370613 65.1500871189447 492814.357633582 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
1965-Jun-03 23:21 < 00:01 Earth 0.461290662723739 0.461285252997011 0.461296072579694 35.6092627666458 35.6091005573647 2438915.473092520 0.167877769480457 470.019651098242 115.524565715123 61.1277077936544 503732.279914776 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
1972-Aug-03 10:38 < 00:01 Jupiter 1.08878268255795 1.08877361252009 1.08879175262308 12.2651878226925 12.2015951796064 2441532.943313326 0.448300283691931 101.065079340675 19.5415569775646 30.6059603475113 898761.811800887 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
1984-Sep-04 22:11 < 00:01 Jupiter 1.57951469732558 1.57950737179126 1.57952202286236 12.8615996676175 12.8198376036928 2445948.424111374 0.473406360410444 88.3872572919132 29.260452059195 25.2030143718833 887046.45364579 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
1986-Jun-06 02:23 < 00:01 Earth 0.403735888680621 0.403734849011099 0.403736928350249 36.8806766449445 36.880497700931 2446587.599629918 0.0233574739375365 55.9407360088634 43.8562003284787 -48.3003048889945 1200524.38872545 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2008-May-13 18:20 < 00:01 Jupiter 0.868683830372605 0.868681436984007 0.868686223762086 15.969458632086 15.9082833949796 2454600.263902206 0.161451277845853 39.783291876978 36.6182258205068 -71.8189037156854 912049.303633399 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2020-Jan-28 22:39 < 00:01 Jupiter 1.26334414923084 1.26333897773692 1.2633493207374 12.0074220974411 11.9514544789984 2458877.443545615 0.43166109086883 63.7393027220558 4.09288868680773 37.6907584685266 5591967.50328334 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2028-Jun-16 11:05 < 00:01 Earth 0.319719018564523 0.319717614047054 0.319720423121323 44.0526898248773 44.0525006461119 2461938.961634967 0.112506112355816 238.864549544345 44.9296020642917 -76.7131324741723 1005258.03748374 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2032-Feb-20 20:29 < 00:01 Jupiter 1.57106798762638 1.57105974806287 1.57107622719247 13.2325064140565 13.1917000389534 2463283.353214259 0.428391368918581 94.4132465123969 47.7119610102228 15.7725317948917 595350.053907344 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2049-Jun-24 21:08 < 00:01 Earth 0.363577044275304 0.363563882623137 0.363590206753684 48.9643516080229 48.9642019374029 2469617.380561517 0.51411225211359 1072.59520869281 74.6434268701974 -52.6082709541356 565208.965239654 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2055-Oct-15 03:27 < 00:01 Jupiter 0.832521456898999 0.832512379666716 0.83253053409409 15.6334501436323 15.5682345470689 2471920.643561115 0.448279247915424 148.816450679514 128.829079092226 53.0516123139523 233988.20318499 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2067-Jul-16 12:46 < 00:01 Jupiter 1.29794579136957 1.29793200716859 1.29795957564806 11.9408579603125 11.8860807199547 2476213.032206465 0.829747874119672 162.786819068808 22.4237187686531 36.4153878818585 1026757.92049175 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2079-Aug-13 09:49 < 00:01 Jupiter 1.51075018155349 1.51073405881033 1.51076630423406 13.0768100252793 13.0338648679387 2480623.909175342 0.756112478379852 284.51148884461 166.1203158988 64.4848696685721 273429.093488806 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2086-Jun-25 23:02 00:03 Earth 0.33835991095471 0.338282756662715 0.338437081336558 49.8179438567094 49.8177857871128 2483132.459393170 2.51454517049955 5257.77360048588 126.185726642253 -43.424226951417 269127.135128736 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2103-Apr-16 06:02 00:03 Jupiter 1.00045165958963 1.00039887681872 1.00050444311011 16.2606230549606 16.2084725341458 2489269.751411293 3.45720352285759 1112.70243897327 231.136084615766 35.8767495880132 103884.675015674 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2114-Dec-18 09:55 00:03 Jupiter 1.22451167279069 1.22446875689392 1.22455458929147 12.043517899594 11.9859450192914 2493533.913157788 2.4957155788618 350.9496746901 204.008603028389 -6.42963487421452 104706.767823294 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2127-Feb-02 12:14 00:01 Jupiter 1.45607506759339 1.45605910608559 1.4560910216943 12.5519978952357 12.5055675072665 2497963.009859286 1.42118253134148 1538.10842157642 260.744938772431 84.1190002509115 171442.144570022 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2139-Jun-14 10:55 00:22 Earth 0.176720322732174 0.176512401870942 0.176934863646679 41.6748579194816 41.6744961319313 2502477.954654166 22.4559558993596 52875.6162670776 225.356045388715 79.3329330746046 111344.659540927 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2150-Nov-09 23:33 00:36 Jupiter 1.35573466131885 1.35519974868302 1.35626954173135 17.6879077866624 17.6525505697204 2506644.481283724 35.83780701432 11868.9934879825 325.656537125298 25.3118217819474 75850.4978873373 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2162-May-20 15:50 00:11 Jupiter 1.07213212727595 1.07165850244375 1.07260599071172 12.4222397846453 12.3584776622414 2510854.159525130 10.5377992118348 5048.67752138137 326.624934336348 -45.0588342828687 71034.4499382577 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2174-Jul-08 20:26 00:36 Jupiter 1.44655306313411 1.4462325710226 1.44687570331475 12.0870102409228 12.0384685791515 2515286.351634770 35.543729653199 14973.7049732284 355.295145879174 -86.024901931627 120872.624474275 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2176-Jul-06 09:10 03:10 Earth 0.445417574174849 0.438506768106318 0.452337116023989 56.4599415724654 56.4598356214821 2516014.881856960 189.630102127399 357989.163272407 181.208907495362 -16.013108790976 99482.4172400657 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2186-Feb-12 15:12 04:52 Jupiter 1.95824624090572 1.95437806597103 1.96211821362495 16.8938947572457 16.8682719128202 2519523.133020117 292.172441943024 105036.82777661 372.241214022418 34.0030371367038 120122.808025647 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2192-Jun-08 21:34 07:52 Earth 0.198048204470215 0.178290966525827 0.218920586715216 38.4543620175505 38.4540121547143 2521831.398619952 471.667628113647 1186585.5476907 293.563503494003 35.5801547763944 56379.9582998828 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52
2198-Jun-11 10:16 11:42 Jupiter 1.73858662502979 1.72842583509156 1.74872455266726 19.2062884868776 19.1809055278507 2524024.927765947 701.662612491238 253653.460051387 409.273573787914 19.0776554136855 63685.8706957202 T 53 CATAB v2.0c-linF95 2013-Aug-27 09:52:01 2013-Aug-27 09:52

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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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