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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2454464.5 (2007-Dec-30.0) TDB
Reference: JPL 129 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7668172062104814 1.5467e-08  
a 2.604406321792521 1.0619e-08 au
q .607302742278664 3.8371e-08 au
i 11.30147174856602 5.6559e-06 deg
node 176.2089239380909 3.0988e-05 deg
peri 217.9798820153891 3.1168e-05 deg
M 195.5044274817654 1.1125e-06 deg
tp 2455165.976700556259
(2009-Nov-30.47670056)
8.1882e-06 TDB
period 1535.187897973726
4.20
9.3895e-06
2.571e-08
d
yr
n .2344989824862216 1.4342e-09 deg/d
Q 4.601509901306378 1.8762e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1235  
   data-arc span      11780 days (32.25 yr)  
   first obs. used      1989-03-07  
   last obs. used      2021-06-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55036  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-01 22:13:05  

Additional Information
 Earth MOID = .142282 au 
 Jupiter MOID = .97532 au 
 T_jup = 2.889 
[ 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 16.8   0.9 129 2 parameter fit from 320 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a 129 autocmod 2.9c
rotation period rot_per 8.369 h n/a LCDB (Rev. 2020-October); 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 1.26339702007136 1.26339373697886 1.26340030316421 7.75412717697417 7.66717830343322 2419054.162798021 0.425048441112366 169.674102801719 87.9024893859144 -20.9484616887678 829062.650238151 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1913-Jul-24 17:03 00:02 Venus 0.0864267635938005 0.0864240766909653 0.0864294521619251 19.2383317919988 19.2370257172682 2419973.210275790 2.37026776877198 614.170257816277 8.15802264945092 77.4172617611275 1578414.26548178 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1917-Sep-30 20:09 00:02 Earth 0.369795663802028 0.369792789754742 0.369798537938147 21.0838696017822 21.0835278555457 2421502.339699833 2.08602306509526 319.989788980876 6.18907956428019 63.4139760940563 6978481.75573773 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1922-Jan-29 22:44 < 00:01 Earth 0.292282038139559 0.292272493558318 0.292291582978821 28.6871331900817 28.6868154108685 2423084.446971991 0.902682772717197 643.541571480516 9.91045512799414 42.3103598612054 2878779.05692143 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1934-Aug-02 02:05 00:03 Venus 0.141122492386286 0.141121148714272 0.141123836760318 18.428124354982 18.4272893262618 2427651.586738974 2.50051998914844 507.165607025451 10.633871206026 82.5017308462094 1953295.92760613 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1938-Sep-07 10:10 00:02 Earth 0.292375282865713 0.292370291580499 0.292380274290698 18.3595489076619 18.3590525261855 2429148.923769569 2.10959533406018 404.515679996627 6.68156856626965 52.0370073545751 4965495.66710707 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1943-Jan-30 06:57 < 00:01 Earth 0.307940807494228 0.307932709926353 0.30794890520725 29.0201929405133 29.0198947821141 2430754.789307449 0.732879012742803 523.706600889069 9.98131284198074 39.5621776593264 2844747.75971595 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1958-Apr-13 00:03 < 00:01 Jupiter 1.94344060041273 1.94343811583289 1.94344308499258 9.48162848737176 9.43555009556625 2436306.502007852 0.243320237134807 124.543489027361 87.7447874268321 -12.804531301098 1409765.60536695 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1959-Sep-02 08:04 00:01 Earth 0.291022257223619 0.291018613343662 0.291025901169961 18.3566855743329 18.3561868072507 2436813.836162001 1.40579435956489 284.825933124646 6.55274747385637 50.3790236174102 4983374.44365299 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1959-Sep-21 10:26 00:02 Venus 0.110647918973155 0.110645400117633 0.110650438113276 18.9192133925327 18.9181760205215 2436832.934685394 1.5089737283205 307.158372288679 7.21516794368661 65.8963527308234 2095909.09072583 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1964-Jan-13 14:06 < 00:01 Earth 0.213908578532688 0.213905815962335 0.21391134123402 19.3587095808127 19.3580661305713 2438408.087688250 0.656480317988543 298.317769309698 9.64673632812813 -62.5532338605268 3049382.92290801 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1970-Apr-27 21:58 < 00:01 Jupiter 1.04238708935593 1.0423858709481 1.042388307765 6.28758972611661 6.15699807634634 2440704.415618524 0.291494504859642 93.264965795589 34.5790147959711 55.1460364600425 2621971.24016521 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1982-Mar-23 23:12 < 00:01 Jupiter 1.20401284599793 1.2040116846632 1.20401400733287 7.45690319275569 7.36195667604232 2445052.466784908 0.209685531054241 89.4270589925085 52.1035786648008 70.8950781914414 2257434.98681657 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1984-Aug-30 16:56 < 00:01 Earth 0.277297189576827 0.277295804656534 0.277298574503866 17.8131294440324 17.8125900163364 2445943.205751786 0.50840459519784 97.2962036453772 7.03082264301521 44.9311997666303 4071605.01528554 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1989-Jan-19 18:48 < 00:01 Earth 0.165500392454704 0.165500235116706 0.165500549792703 22.191768305487 22.1910428203519 2447546.283044941 0.171522022882395 111.615741152444 7.84545256588454 -89.9613998635085 3137334.38571262 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
1997-May-05 01:52 < 00:01 Venus 0.138947153794565 0.138946934028251 0.138947373560879 17.9610967352841 17.9602265796053 2450573.577812674 0.248242542513747 53.6142413257437 10.9579199720763 -89.841737149935 1901975.07549575 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2005-Aug-07 00:29 < 00:01 Earth 0.147491988232602 0.147491827301223 0.147492149163988 21.2543045031579 21.2534545290186 2453589.519897297 0.027520497018535 8.15570490872904 5.54627876045456 14.0737690615323 2828950.27900326 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2010-Jan-12 02:35 < 00:01 Earth 0.194351944927387 0.194351713206589 0.19435217664824 18.9178422399726 18.9171175367629 2455208.607442432 0.0486156727742751 14.0003716239011 8.63688833023777 -45.8399094344481 2948661.38691615 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2022-Jul-13 17:38 < 00:01 Venus 0.139497964724014 0.139497689807798 0.139498239647857 18.0147624739814 18.013898336286 2459774.234965597 0.431446430674911 60.8814500002191 6.81844002794332 78.662405698825 2878767.72185329 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2026-Aug-11 19:33 < 00:01 Earth 0.167166548448626 0.167165435659892 0.167167661261278 19.8970230649236 19.896221970662 2461264.314425424 0.288180376815612 114.877954501877 7.34726410347567 61.3284835508428 3052270.92165668 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2029-Jun-24 04:28 < 00:01 Jupiter 1.9921742985908 1.99217334202211 1.99217525515961 9.72268434740555 9.67885536188703 2462311.686213934 0.257388227759637 86.2687963490214 43.3208064478289 74.772723348342 4453050.2462602 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2031-Jan-13 05:11 < 00:01 Earth 0.203140873466114 0.203139224648902 0.203142522300901 18.7175223377976 18.7168215689114 2462879.715986630 0.325132697441921 125.374731723176 7.69367096010576 -49.1426954659483 3145611.1562103 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2041-Jul-13 12:55 < 00:01 Jupiter 1.06486473339354 1.06486366808352 1.06486579870478 6.3269260007774 6.19993048028551 2466714.037883590 0.282711191733221 93.9587252708994 35.664555462515 63.0952480780569 3475493.19941207 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2051-Aug-20 08:25 00:01 Earth 0.246100480718069 0.246096354341767 0.246104607146747 18.0570692932701 18.0564696957324 2470403.850579579 1.06236423602033 272.843808759625 7.65508941286593 41.0669526739196 3257518.2601406 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2053-Jun-02 17:31 < 00:01 Jupiter 1.18105671555159 1.18105539911262 1.18105803199137 7.28963750113956 7.19058189661445 2471056.230070306 0.262070661836337 92.7120788989257 40.9684053740164 53.0073819957847 2040859.22585592 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2056-Jan-15 11:44 < 00:01 Earth 0.172933823944374 0.172929743413901 0.17293790460719 19.2543194351553 19.2535192080378 2472012.989053776 0.69759935386256 313.676111094932 7.35988134228192 -49.5728163477022 2791527.43501506 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2072-Jul-24 13:11 < 00:01 Earth 0.194790338769019 0.194783547565051 0.194797130106721 26.8669180505829 26.8664089176285 2478048.049036487 0.687377334844091 423.680473030625 8.25084647359498 -36.9443795024346 2073338.28510941 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2076-Dec-08 19:11 00:02 Earth 0.345435628762007 0.345431851421225 0.345439406120265 17.1939615610314 17.1935129448423 2479646.299446184 1.94505648561274 224.785970996756 9.13776033306722 -33.1107413378531 2576791.57410976 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2085-Apr-28 17:30 00:02 Venus 0.132258402500206 0.132257500602614 0.132259304756933 17.6007183252115 17.5997854430477 2482709.229478490 1.88468517245916 355.066535867958 9.83563531659026 -82.8950208013498 2031791.1312108 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2093-Jul-23 13:26 < 00:01 Earth 0.210660767364069 0.210653998192574 0.210667536633995 27.486286124228 27.4858259563841 2485717.059997606 0.647187870647757 406.861109091865 8.3529967473388 -33.9457319994754 2056102.76182233 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2097-Dec-08 16:39 00:02 Earth 0.347062312524773 0.347058907289906 0.347065717773805 17.2539652535656 17.2535202929406 2487316.194030608 1.78107979888364 202.726858696751 9.12090567210726 -33.1544347474521 2597774.46803333 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2112-Sep-30 04:25 < 00:01 Jupiter 1.10926663732477 1.10926557326605 1.10926770138401 6.45318284210055 6.33375032043437 2492724.684089409 0.273002780846381 94.4574671810919 45.6055321470965 71.2287889281202 2678917.07103676 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2118-Aug-21 07:14 < 00:01 Earth 0.248129411371859 0.248125525503991 0.248133297265355 17.6484326687901 17.6478242039947 2494875.801178310 0.928976418579671 231.059456160701 8.91200329130652 33.0307422117252 2382373.51518211 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2122-Dec-02 22:10 < 00:01 Earth 0.394399076902157 0.394397700243343 0.394400453563683 19.5275354924321 19.5271895268638 2496440.423743264 0.829360971943148 86.0804147790207 8.06727911957156 -37.3044827177433 3574512.59016822 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2124-Aug-14 22:50 < 00:01 Jupiter 1.12685262133132 1.12685140167617 1.12685384098787 6.94618018285221 6.83711028144182 2497061.451347281 0.270439687277818 93.3774241273556 25.6324040065815 52.6670355545764 3261410.46860231 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2127-Jan-01 03:35 < 00:01 Venus 0.0561377396797945 0.0561353990911433 0.0561400804647406 22.0589909885843 22.057237327586 2497930.649612247 0.431156626830526 203.125853264942 10.7143936227251 -55.0419818085375 637232.817435865 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2143-Oct-02 09:04 < 00:01 Earth 0.375178257817825 0.375177578005946 0.375178937630856 19.9119725786925 19.9116159105676 2504048.877923529 0.357767189236443 47.5949533548792 6.83277132754445 45.1776713332068 4650557.79593374 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2147-Dec-05 00:15 < 00:01 Venus 0.0413917461915844 0.0413912554038722 0.0413922370371226 20.5647351252186 20.5621838399728 2505573.510325794 0.214365179425038 90.0226456837661 11.1324342906842 -75.8785776494677 540116.373650748 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2148-Feb-06 10:41 < 00:01 Earth 0.275604447186248 0.275603191609765 0.27560570276386 30.1865412782651 30.1862210091318 2505636.945194089 0.114162354803137 68.6514996533353 9.74077518383987 24.480510147799 1786105.12852331 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2164-Sep-09 23:11 00:01 Earth 0.307626636993188 0.307623618258527 0.307629655737431 17.268441975727 17.2679403941567 2511697.465950105 1.11389901755322 173.247324381062 8.9555347570333 29.7165677267143 2240963.51964463 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2169-Jan-06 23:53 < 00:01 Venus 0.116281371554234 0.116281219212016 0.116281523904206 19.1409523507226 19.13997667314 2513277.495139831 0.962511810005331 295.057919740924 7.49839618100148 89.7648086725255 2315768.30467909 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2169-Jan-30 20:48 < 00:01 Earth 0.172545144194527 0.172540526587323 0.172549761865699 26.6692046091932 26.6686255749256 2513301.366712367 0.437496585906497 283.763589287908 10.1401763710932 35.7883250963028 1463389.0136343 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2183-Dec-15 18:59 < 00:01 Jupiter 1.22266488406326 1.22266306848658 1.22266669964036 6.87151613154202 6.76994822135091 2518733.291152405 0.338659055405405 116.4054174379 77.3575779400747 -59.098276010127 1619729.52663036 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2185-Jul-26 11:51 < 00:01 Earth 0.118944642085046 0.118937447413949 0.118951837130073 25.8580757914037 25.8572094709981 2519321.993644817 0.795142785462106 489.315672416162 11.1335003566255 -42.8570596498435 1074413.17214321 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2189-Oct-11 17:37 00:02 Venus 0.100764470711906 0.100756432697602 0.100772509008882 18.3690507370923 18.3678774921965 2520860.234126788 2.19536554085073 481.193043205051 10.6250997545766 33.6005100459853 802919.568885086 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2189-Oct-26 14:07 00:02 Earth 0.441114184097453 0.441113666958288 0.441114701252491 23.2551093396166 23.2548495957067 2520875.087975893 1.57750807766669 135.988793413682 4.04728294994161 79.2010784911082 14176414.9815394 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2194-Jan-30 20:10 < 00:01 Earth 0.101204931380375 0.101198918066106 0.10121094532439 25.1865138210293 25.185468495311 2522432.340357526 0.778797061862825 498.638541859896 11.3792863009888 53.0511654224164 1054938.16146071 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13
2195-Oct-26 05:34 < 00:01 Jupiter 1.05086029786535 1.05085899012324 1.0508616056086 6.47617150540629 6.35049147414678 2523065.731928424 0.290243830736461 93.0697956486771 33.2666773405403 50.9692545138289 1882145.05427121 T 129 CATAB v2.0g-lin.ifort 2021-Jul-01 22:13:11 2021-Jul-01 22:13

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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