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173664 (2001 JU2)
Classification: Amor [NEO]          SPK-ID: 2173664
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 84 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .268838433939064 2.8295e-08  
a 1.517496692435408 3.2612e-09 au
q 1.109535258133363 4.2739e-08 au
i 4.015107539981701 4.6884e-06 deg
node 100.7593502787933 5.5216e-05 deg
peri 227.2775383167585 5.626e-05 deg
M 2.180457024008534 9.2782e-06 deg
tp 2458996.364432752864
(2020-May-26.86443275)
1.7597e-05 TDB
period 682.7945667244034
1.87
2.2011e-06
6.026e-09
d
yr
n .527244968756916 1.6996e-09 deg/d
Q 1.925458126737452 4.1379e-09 au
  Orbit Determination Parameters
   # obs. used (total)      244  
   data-arc span      7125 days (19.51 yr)  
   first obs. used      2001-05-15  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66402  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-25 05:21:49  

Additional Information
 Earth MOID = .109667 au 
 Jupiter MOID = 3.41333 au 
 T_jup = 4.467 
[ 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
absolute magnitude H 19.6   n/a MPO469862  

173664 (2001 JU2)          Discovered 2001-May-15 by LONEOS at Anderson Mesa
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ 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-Aug-11 11:36 < 00:01 Earth 0.125106328736242 0.125100468007164 0.125112189464673 3.00161015260223 2.99450631519686 2415972.983405972 0.16529285124678 291.906782321524 15.7589974163991 2.43971193410152 57167.7387672134 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
1915-May-21 22:13 00:01 Earth 0.499712290687668 0.499706891679831 0.499717689702776 5.22549024956862 5.22446976206112 2420639.425995298 1.34438377436083 285.575953538452 12.1874867914698 -19.6121876097432 830946.349536313 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
1917-Aug-04 13:39 < 00:01 Earth 0.252121688913245 0.252112025000206 0.252131352865424 7.27732776075206 7.27587540318266 2421445.068935395 0.615826095273181 506.755138754835 15.0191145586497 18.0935783690854 440833.103676525 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
1930-Jul-03 14:33 00:03 Earth 0.306406015152827 0.306399894654665 0.30641216636926 2.05585344823104 2.05161925786831 2426161.106537213 3.19633167724217 4853.5192148517 6.38501445016394 -86.3786600348815 910452.349894549 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
1932-Nov-08 15:19 < 00:01 Earth 0.464437149885948 0.464433268146081 0.464441031630303 5.01304936100508 5.01190481565586 2427020.138539725 0.982445618601541 206.604582588613 11.3921244610805 -20.6332126225885 828683.704678323 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
1945-Aug-10 19:38 < 00:01 Earth 0.109049697243035 0.109049248811914 0.10905014569995 3.10931748964056 3.10144933904934 2431678.318047886 0.131375571366863 96.8096452705291 10.200375868433 78.2630164139032 778072.796149359 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
1958-May-31 18:21 < 00:01 Earth 0.446536851818223 0.446534756395731 0.446538947242036 4.23144144895204 4.23003105934682 2436355.264559907 0.568351523501108 111.328453139469 11.0080645059845 -20.5017501354645 760636.868298207 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
1960-Jul-31 14:54 < 00:01 Earth 0.348355445850057 0.348351916266829 0.348358975434889 9.91351071369005 9.91273913686764 2437147.120862938 0.307207854121144 179.956682272198 16.413560260813 12.1196880619837 441636.685572173 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
1960-Oct-13 06:07 00:01 Earth 0.340742177520166 0.340739694981456 0.34074466006027 1.63600630554322 1.63121959358008 2437220.754895754 1.05702318425699 128.723409381545 12.7110563695267 -24.0002138870487 168981.671197883 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
1973-Aug-09 18:35 < 00:01 Earth 0.220020954171268 0.220018286291072 0.220023622056905 4.33117881735091 4.32838188187248 2441904.274510712 0.510152959018555 143.959715797416 16.5276362154116 22.6887022417795 603475.90017564 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
1977-Oct-23 01:26 < 00:01 Mars 0.0865845859065701 0.0865832979084916 0.0865858739340512 5.15223261894928 5.15159082267765 2443439.559904857 0.194515703554834 103.471629003571 12.4900308384307 52.1713084865886 766379.011373639 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
1979-Sep-08 20:41 < 00:01 Mars 0.067195705262427 0.0671954515764774 0.0671959589487738 4.33858512746884 4.33760300486774 2444125.362037892 0.160472097781323 94.9457490405782 12.6028610816514 89.3385266159819 803321.547303992 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
1981-Jul-28 20:58 < 00:01 Mars 0.0837524881027525 0.083751462213819 0.0837535140160969 3.59865025381171 3.59770024823022 2444814.373672322 0.283661705307795 89.7679908299847 13.0819997429139 -56.1488932964603 922654.551538745 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
1988-Aug-10 05:23 < 00:01 Earth 0.126103051812612 0.126102219511893 0.126103884118879 3.72934725208724 3.72367723709614 2447383.724307075 0.109934853380962 60.4692482282522 13.0254987421517 48.3188318737739 570590.063003692 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2001-Jun-05 17:13 < 00:01 Earth 0.421558364012488 0.421557790980223 0.421558937044847 3.7615976205636 3.75991696259066 2452066.217477658 0.155991160789135 30.6060408900797 10.568143373914 -22.7535794160616 929829.76717086 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2003-Jul-31 03:55 < 00:01 Earth 0.386480947334683 0.386480108057573 0.386481786611815 10.9667685066283 10.9661398434273 2452851.663537071 0.231082310302032 42.3906353281812 17.4142833086316 10.0895828412048 895764.994823914 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2003-Oct-21 08:32 < 00:01 Earth 0.366482353288757 0.36648178342963 0.366482923147989 2.54919261498532 2.54633897102367 2452933.855367476 0.181938758350659 30.3553594867278 12.0870181275098 -24.1690334150937 458600.291110708 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2014-May-08 19:14 < 00:01 Mars 0.0887127926581023 0.0887124697358454 0.0887131155803593 4.21946968634209 4.21870479203194 2456786.301128608 0.171906343904481 17.6858485869067 16.1028701193409 -89.8051049308553 827512.756513198 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2016-Aug-10 23:49 < 00:01 Earth 0.196484705853184 0.196484357259802 0.196485054446576 3.98878767589442 3.98538650946853 2457611.492400776 0.217432558260872 18.3060135882557 17.0700042991033 59.4665095192398 1057407.76856244 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2031-Aug-09 10:08 < 00:01 Earth 0.170725600555629 0.170724849109911 0.17072635200226 5.04990495540133 5.04681349664249 2463087.922322397 0.130741165316591 43.0772539300895 14.0142942161376 31.5657408158747 573082.231288663 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2044-Jun-20 17:56 < 00:01 Earth 0.353414681879935 0.353413618532868 0.353415745230557 2.5162003683264 2.5132023011682 2467787.247064692 0.374298930843801 77.6066507293347 8.38486368755408 -47.5541538618833 762373.074849937 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2046-Jul-25 07:23 < 00:01 Earth 0.495244140781914 0.495242578745559 0.495245702818326 14.1311650712247 14.1307843378996 2468551.807712303 0.273441433454921 78.4119137684967 20.9301870408873 6.87693621898111 710001.015086021 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2046-Nov-04 13:35 < 00:01 Earth 0.432092683792931 0.43209179329827 0.432093574287887 4.31712190363664 4.31569329590781 2468654.065951925 0.251647916168239 48.2078957377044 11.2447412298666 -23.8100672276882 869473.833183376 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2059-Aug-12 20:08 < 00:01 Earth 0.110104956791428 0.110104646610866 0.110105266976377 2.9262701370538 2.91798869361829 2473318.338591051 0.084808221607173 41.3562032107686 6.60727650242098 -69.8417210367018 1525772.86244492 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2072-May-31 04:22 < 00:01 Earth 0.453078894660516 0.453076505093109 0.453081284229829 4.37447019637171 4.37312563753596 2477993.681627422 0.647611755810534 127.923813004182 10.9831079331858 -21.593116575992 829083.241239245 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2074-Aug-02 08:19 < 00:01 Earth 0.33700209880549 0.336997728279374 0.337006469334633 9.66163301265212 9.66081464659661 2478786.846488948 0.329348253580128 223.727018937762 16.1438660857699 13.1345399185336 451683.011660864 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2074-Oct-12 18:47 00:01 Earth 0.332717176471736 0.332714042661452 0.332720310282246 1.35228314342686 1.34634810430834 2478858.282655551 1.47535856822727 157.634971026274 12.4048855619219 -26.4809532917446 134578.872537802 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2087-Aug-12 08:42 < 00:01 Earth 0.211685142300133 0.211679723369048 0.21169056125419 4.23894330328482 4.23597289215751 2483544.862417797 0.661506609311158 291.832046401666 16.6826538659034 22.3366034448706 560945.715004082 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2102-Aug-11 07:21 < 00:01 Earth 0.164366206622898 0.164361023603789 0.16437138970284 4.84848026822321 4.84513566956487 2489021.806581873 0.285521989991001 302.913789656717 13.9954103552533 31.5938326109314 493453.208490405 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2115-Jun-20 23:48 00:01 Earth 0.362431402645308 0.362427136811841 0.362435668513758 2.69090795124335 2.68817451889424 2493718.491673081 1.42943767672743 277.274726275928 9.2390109762651 -40.2521337646715 734525.242196761 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2117-Jul-27 22:10 < 00:01 Earth 0.481826056986746 0.481820024810636 0.481832089163952 13.7016754821175 13.7012718787388 2494486.423334556 0.542020595530539 302.970802857992 20.4292845919027 6.90700934112981 331055.47348375 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2117-Nov-04 15:53 < 00:01 Earth 0.424308248448563 0.424304779491551 0.424311717410182 4.12855567529448 4.12703438267388 2494586.162122381 0.9796587497387 186.55472221005 11.2659343169375 -22.2857181417385 684081.978465451 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2130-Aug-14 16:26 < 00:01 Earth 0.114171870364713 0.114170436919463 0.114173303820891 2.88055041130766 2.87243725592462 2499252.184404774 0.113696632121533 90.9241048265753 8.72162615955357 -38.3552295440623 1706715.62112279 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2143-May-30 09:53 00:01 Earth 0.471708427077079 0.471704444119224 0.47171241003976 4.7278926371793 4.72669775248209 2503923.911916922 1.03703644644376 212.443587699482 11.3056402575872 -20.9569622047074 861467.49880653 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2145-Aug-05 10:14 < 00:01 Earth 0.302562339319316 0.302555049625348 0.302569629025512 8.72263363435638 8.72162397472714 2504721.926622922 0.514216666170222 375.968777926345 15.7973780817713 14.8544698997962 435198.847466562 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2145-Oct-04 02:25 00:05 Earth 0.306625422892518 0.306619625740295 0.306631222775482 0.0624468027813234 n/a 2504781.600470479 4.75378223207675 1473.07421997965 13.0694750375295 -78.6912235352119 3441115.13463478 F 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2158-Jul-31 19:42 00:11 Earth 0.257086712633587 0.257078767986778 0.257094657379886 3.60300576195507 3.60012809031814 2509465.321075843 10.5565671196153 470.511016231486 44.0454098210878 -31.8840862227129 169649.495170244 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2160-Nov-17 14:35 00:01 Earth 0.494498484590542 0.4944941055148 0.494502863671512 5.66496294367469 5.66401171095096 2510305.107450474 1.08884647800721 232.636790286723 11.5453067974943 -20.2916326633467 944197.604903975 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2173-Aug-13 01:25 < 00:01 Earth 0.130890688682646 0.130885784139634 0.130895593405044 3.86683174401103 3.86156376227819 2514956.558733031 0.29645260796805 344.174905945543 13.3011897167264 44.92369733347 547615.358899855 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2186-Jun-15 09:38 00:02 Earth 0.389642683023512 0.389636211075595 0.389649155002526 3.20974497282952 3.20761379589297 2519645.901706930 1.95782849699861 366.51893432359 10.1063642249873 -28.6251158853638 729316.144924529 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2188-Jul-30 05:09 < 00:01 Earth 0.443123166149575 0.443113144368319 0.443133187936044 12.6187233937979 12.6182468742938 2520421.714609873 0.743529489027719 505.490761685848 18.4961462888398 8.68048643617347 370200.172006544 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
2188-Oct-31 17:43 00:02 Earth 0.401497611308943 0.401491578208923 0.401503644424163 3.56740581204966 3.56554505293846 2520515.238204810 1.82686536065549 325.124565996624 11.3210785473303 -22.7177498687316 557545.707370286 T 84 CATAB v2.0f-lin.ifort 2020-Nov-25 05:21:50 2020-Nov-25 05:21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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