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JPL Small-Body Database Browser
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169P/NEAT
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1001656
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454389.5 (2007-Oct-16.0) TDB
Reference: JPL 123 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7668707109626619 1.5477e-08  
a 2.60431370805085 1.0615e-08 au
q .6071418031880883 3.8397e-08 au
i 11.30280131314155 5.7409e-06 deg
node 176.2144830594115 3.1431e-05 deg
peri 217.9781689440939 3.1611e-05 deg
M 177.8994103022555 1.0486e-06 deg
tp 2453630.904294218438
(2005-Sep-17.40429422)
4.1925e-06 TDB
period 1535.106010848311
4.20
9.3857e-06
2.57e-08
d
yr
n .2345114913601709 1.4338e-09 deg/d
Q 4.601485612913612 1.8756e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1207  
   data-arc span      11005 days (30.13 yr)  
   first obs. used      1989-03-07  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55226  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-15 08:30:48  

Additional Information
 Earth MOID = .142766 au 
 Jupiter MOID = .974973 au 
 T_jup = 2.888 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.8   1. 123 from 236 observations, assumed slope, autocmod 2.6q
comet total magnitude slope K1 12.   n/a 123 autocmod 2.6q
comet nuclear magnitude M2 18.4   1. 123 from 694 observations, autocmod 2.6q
comet nuclear magnitude slope K2 5.   n/a 123 autocmod 2.6q
comet nuclear phase coefficient PC 0.03   n/a 123 autocmod 2.6q
rotation period rot_per 8.369 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2006) Minor Planet Bull. 33, 35-39.]

[ 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
1911-Jan-17 15:54 < 00:01 Jupiter 1.26339683047062 1.26339354532612 1.26340011561549 7.75412654093928 7.66717764657978 2419054.162806191 0.42612115624076 169.708609871364 89.3894958284576 -20.993664373208 824562.999325152 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1913-Jul-24 17:03 00:02 Venus 0.0864266665174031 0.0864239785540018 0.0864293561471284 19.2383386993151 19.2370326235865 2419973.210213865 2.37112323920607 614.391519378737 8.26698457965838 77.4174110503791 1558449.36758795 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1917-Sep-30 20:09 00:02 Earth 0.369795564684292 0.369792689624213 0.369798439833268 21.0838646875392 21.0835229411315 2421502.339654375 2.08675010348824 320.10137057932 6.2579909505405 63.4143344489958 6906699.58617603 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1922-Jan-29 22:44 < 00:01 Earth 0.292281831455501 0.292272283807778 0.292291379361409 28.6871246924269 28.686806912895 2423084.446952269 0.903000676704877 643.749467988023 10.0043433943457 42.3105848021241 2851631.26387713 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1934-Aug-02 02:05 00:03 Venus 0.141122436156843 0.141121091585262 0.141123781430331 18.4281227821142 18.42728775299 2427651.586719524 2.50138827692282 507.331605100629 10.8056416564508 82.5021384628899 1922763.76704711 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1938-Sep-07 10:10 00:02 Earth 0.292375258844995 0.292370265733414 0.29238025209643 18.3595474226296 18.3590510410724 2429148.923760221 2.11033994400197 404.654560943689 6.73491691068026 52.0361507588571 4936824.76059683 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1943-Jan-30 06:57 < 00:01 Earth 0.307940853990289 0.307932753712278 0.307948954413569 29.020194606921 29.019896448584 2430754.789303873 0.733147428842286 523.89055405557 10.0785766845219 39.5634888328147 2817250.67442788 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1958-Apr-13 00:03 < 00:01 Jupiter 1.94344022747935 1.94343773743958 1.94344271751911 9.48162779693398 9.43554939263782 2436306.502008005 0.244351981501426 124.646705079811 89.18639969922 -12.2620025886544 1404083.0746203 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1959-Sep-02 08:04 00:01 Earth 0.29102238751332 0.291018741528576 0.291026033564517 18.356686140208 18.3561873733646 2436813.836192435 1.40651847481404 284.973454520651 6.59263331182837 50.376394167536 4963965.95230445 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1959-Sep-21 10:26 00:02 Venus 0.110648000318275 0.110645479954483 0.110650520966887 18.9192122653215 18.9181748940112 2436832.934718880 1.50978746199217 307.296540930006 7.31041195764498 65.8934296610234 2069741.53161242 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1964-Jan-13 14:06 < 00:01 Earth 0.213908444623951 0.213905680204271 0.21391120917472 19.3587170194627 19.3580735690659 2438408.087701422 0.656801449139784 298.47114876994 9.73275192589852 -62.549566425675 3022173.88343171 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1970-Apr-27 21:58 < 00:01 Jupiter 1.04238674151511 1.04238550691774 1.04238797611378 6.28758943048303 6.15699772967308 2440704.415611994 0.293420716069685 94.8650507602023 34.5844190894902 55.1443963150779 2618724.34761474 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1982-Mar-23 23:12 < 00:01 Jupiter 1.20401282347605 1.20401165476082 1.20401399219155 7.45690342494948 7.36195690891531 2445052.466781419 0.211737323767386 90.928076512505 52.1298847741027 70.7163394481511 2253148.05944876 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1984-Aug-30 16:56 < 00:01 Earth 0.277297190411439 0.277295804818949 0.277298576010675 17.8131289447883 17.8125895170788 2445943.205751469 0.508664448833864 97.3443232532673 7.0724935150971 44.9333671152748 4054580.02427374 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1989-Jan-19 18:48 < 00:01 Earth 0.165500386994047 0.165500229104438 0.165500544883664 22.191768880213 22.1910433950729 2447546.283040660 0.171651156922694 111.656634313554 7.87299857636609 -89.963606430559 3125770.11172954 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
1997-May-05 01:52 < 00:01 Venus 0.138947115032883 0.138946891801155 0.13894733826461 17.9610961755269 17.9602260195782 2450573.577805894 0.248369911202308 53.6550419661511 11.1313372803461 -89.9040586121883 1872904.12151928 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2005-Aug-07 00:29 < 00:01 Earth 0.147491986066098 0.147491825082842 0.147492147049353 21.2543042548363 21.2534542806746 2453589.519893267 0.0276641974995882 8.15734464912416 5.55184059266409 14.0304971580212 2827855.89111491 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2010-Jan-12 02:35 < 00:01 Earth 0.194351925264403 0.194351692968787 0.194352157560074 18.917842528054 18.9171178247821 2455208.607437243 0.0487361205232923 14.0108237750188 8.66965558635433 -45.7314238131227 2936418.25798849 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2022-Jul-13 17:38 < 00:01 Venus 0.139497924013851 0.139497647737317 0.139498200297983 18.014762258147 18.013898120189 2459774.234948908 0.431566987594255 60.9120334775322 6.90419760057242 78.6385224162616 2843901.03101905 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2026-Aug-11 19:33 < 00:01 Earth 0.167166488075603 0.167165374944218 0.167167601230915 19.8970254921651 19.896224397712 2461264.314410847 0.288238552557302 114.910285298447 7.35440798643412 61.327936403502 3050232.17256187 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2029-Jun-24 04:28 < 00:01 Jupiter 1.9921739393485 1.99217297590926 1.99217490278787 9.722683544857 9.67885454754018 2462311.686179381 0.257694018233225 87.7012270705736 43.4252524743125 74.6337863688524 4438049.80144637 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2031-Jan-13 05:11 < 00:01 Earth 0.203140985574292 0.203139336197146 0.203142634969025 18.7175163836155 18.7168156148932 2462879.715964760 0.325202386453435 125.409070482484 7.71341671676044 -49.139985910999 3136654.60546244 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2041-Jul-13 12:54 < 00:01 Jupiter 1.06486442237011 1.06486334191173 1.06486550282977 6.32692577466999 6.19993021136542 2466714.037836414 0.284365550310137 95.5010942417021 35.7241644164308 62.932765125744 3463009.24380931 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2051-Aug-20 08:25 00:01 Earth 0.2460998448278 0.246095716451023 0.246103973257022 18.0570790119996 18.0564794132354 2470403.850461454 1.06295643458048 272.989862151709 7.68237324297576 41.0703950530857 3248965.35130308 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2053-Jun-02 17:31 < 00:01 Jupiter 1.18105656903365 1.18105523979657 1.18105789827161 7.2896373343927 7.1905817146464 2471056.230027780 0.263490817326644 94.2156585922964 41.0611492595172 53.2056558437874 2037842.56115675 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2056-Jan-15 11:44 < 00:01 Earth 0.172934476361976 0.172930393613793 0.17293855924265 19.2542875237268 19.2534872983021 2472012.988971658 0.698017140974803 313.848730712378 7.3636563443995 -49.573147923524 2789811.37661415 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2072-Jul-24 13:10 < 00:01 Earth 0.194791466454734 0.194784671463581 0.194798261579754 26.8669573902497 26.8664482609884 2478048.048954772 0.687735835381357 423.905869956052 8.26659813058358 -36.9424462559225 2069447.69215566 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2076-Dec-08 19:11 00:02 Earth 0.345436274988358 0.345432496020087 0.345440053974125 17.1939972954215 17.1935486810043 2479646.299207642 1.94604752602839 224.900598709351 9.26477808247827 -33.118535501878 2543448.30724872 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2085-Apr-28 17:30 00:02 Venus 0.132258552812842 0.132257650424644 0.132259455559944 17.6006890221486 17.5997561394918 2482709.229222497 1.88548873675202 355.220721817867 9.9887121794649 -82.8995808657669 2001493.29872884 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2093-Jul-23 13:26 < 00:01 Earth 0.210662170674771 0.21065539887827 0.210668942569765 27.4863338527074 27.4858736887279 2485717.059901435 0.647412806672875 407.011514028347 8.37125471497272 -33.9442188807647 2051698.75578843 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2097-Dec-08 16:39 00:02 Earth 0.34706304402749 0.347059637826416 0.347066450242749 17.2540057315318 17.2535607728886 2487316.193759061 1.78166032693048 202.792551099829 9.2493760597252 -33.1590303702972 2563545.13890414 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2112-Sep-30 04:25 < 00:01 Jupiter 1.10926638820896 1.10926531163662 1.10926746478181 6.45318288538484 6.33375033679416 2492724.684011605 0.274293576930609 95.8870006021826 45.7333106097589 70.8546676927484 2665924.8457665 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2118-Aug-21 07:13 < 00:01 Earth 0.248128312807478 0.248124425884791 0.248132199755793 17.6484498767536 17.6478414098577 2494875.800990817 0.929231683824593 231.13122559447 8.96613493026411 33.0345201433227 2369831.88103547 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2122-Dec-02 22:10 < 00:01 Earth 0.394399541266653 0.394398163892868 0.394400918643151 19.5275690064709 19.5272230419039 2496440.423550754 0.829909103580856 86.1563744648596 8.17862164584263 -37.3371671905399 3530008.87590841 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2124-Aug-14 22:50 < 00:01 Jupiter 1.12685240655352 1.12685117056519 1.12685364254333 6.94618007852127 6.83711015388468 2497061.451276302 0.272106663074211 94.9191775947697 25.6962259418257 52.7426040774414 3254858.10332481 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2127-Jan-01 03:35 < 00:01 Venus 0.0561386099146791 0.0561362667886097 0.056140953237155 22.0590563693537 22.057302740739 2497930.649499297 0.43135690564049 203.251886146646 10.8490966434356 -55.0260081213611 629268.038772171 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2143-Oct-02 09:04 < 00:01 Earth 0.37517791076949 0.375177230489293 0.375178591050838 19.9119560524269 19.9115993836761 2504048.877786108 0.357805494022828 47.6752676319771 6.90321489586483 45.2473223675279 4608693.00803875 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2147-Dec-05 00:15 < 00:01 Venus 0.0413920454157124 0.0413915527664604 0.0413925381224661 20.5647829148607 20.5622316539889 2505573.510227429 0.214315496830101 90.0199560440959 11.2793611800204 -75.8560668098036 533076.751926206 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2148-Feb-06 10:41 < 00:01 Earth 0.275603565187374 0.275602309872086 0.275604820503791 30.1865115121867 30.1861912417127 2505636.945141823 0.114141467340477 68.639105575422 9.7555764765848 24.4849680584928 1783991.52556195 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2164-Sep-09 23:10 00:01 Earth 0.307624408642865 0.30762139070743 0.307627426587882 17.2683910416165 17.2678894549334 2511697.465371325 1.11365614580247 173.190947578548 9.04973558881474 29.7114100368642 2218363.45826443 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2169-Jan-06 23:52 < 00:01 Venus 0.116281344684412 0.116281190646511 0.116281498729459 19.1407418394058 19.1397661508667 2513277.494628493 0.962320517036663 295.001189185207 7.5896197245312 89.771611432081 2287647.97905187 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2169-Jan-30 20:48 < 00:01 Earth 0.172541560734273 0.172536943875525 0.172546177656959 26.6690703001135 26.6684912509038 2513301.366480676 0.437409134195113 283.70967893248 10.1613388084627 35.7862237877616 1460338.57377055 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2183-Dec-15 18:59 < 00:01 Jupiter 1.2226657090575 1.22266388633057 1.22266753178478 6.87151975339228 6.76995196602064 2518733.290980179 0.339447129138558 116.562856568192 78.5475158064904 -59.8164708607848 1604074.44253113 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2185-Jul-26 11:50 < 00:01 Earth 0.118950281379979 0.118943087903097 0.118957475230673 25.8582949066501 25.8574286346573 2519321.993210811 0.795042517425976 489.241942298894 11.1975223914852 -42.8581691201665 1068386.78376271 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2189-Oct-11 17:35 00:02 Venus 0.100758124646408 0.100750088372377 0.100766161202934 18.3691969520024 18.3680236425496 2520860.232912941 2.19477009754608 481.070057016883 10.7762188806952 33.5974077432395 791651.09093958 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2189-Oct-26 14:05 00:02 Earth 0.441113817687612 0.441113300634882 0.441114334756165 23.2550936815736 23.2548339372731 2520875.087100617 1.57710887762852 135.933198673051 4.05526572592179 79.1990051167082 14163687.311064 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2194-Jan-30 20:09 < 00:01 Earth 0.101200006947324 0.101193996148306 0.101206018375666 25.1862667338074 25.1852213469664 2522432.339920201 0.778534684581649 498.45166101985 11.4309866749532 53.0532397799065 1050186.9788965 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31
2195-Oct-26 05:34 < 00:01 Jupiter 1.05085946296229 1.05085814198096 1.05086078394488 6.47616820374227 6.35048800559931 2523065.731812181 0.292377681756238 94.5480554910308 33.28812486246 51.1540571444467 1882790.93693676 T 123 CATAB v2.0e-lin.ifort 2019-May-15 08:30:57 2019-May-15 08:31

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2001.5   169P/2002 EX12       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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