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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 ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 83 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2688384471783031 2.8388e-08  
a 1.51749669232765 3.3236e-09 au
q 1.109535237964073 4.2917e-08 au
i 4.015104316159118 4.701e-06 deg
node 100.759360986868 5.5545e-05 deg
peri 227.2775227596945 5.6575e-05 deg
M 2.180459244540674 9.3223e-06 deg
tp 2458996.364428541728
(2020-May-26.86442854)
1.768e-05 TDB
period 682.7945666516753
1.87
2.2432e-06
6.142e-09
d
yr
n .5272449688130756 1.7322e-09 deg/d
Q 1.925458146691226 4.2172e-09 au
  Orbit Determination Parameters
   # obs. used (total)      240  
   data-arc span      6474 days (17.72 yr)  
   first obs. used      2001-05-15  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65605  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Feb-05 08:32:53  

Additional Information
 Earth MOID = .109667 au 
 Jupiter MOID = 3.41333 au 
 T_jup = 4.467 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457072.5 (2015-Feb-19.0) TDB
Reference: JPL 83 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2687033671902477 2.8268e-08  
q 1.109560612711435 4.2921e-08 au
tp 2456947.825447763143
(2014-Oct-17.32544776)
1.8309e-05 TDB
node 100.8505673482102 5.5561e-05 deg
peri 227.1244211507582 5.6621e-05 deg
i 4.014745288369614 4.7014e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      240  
   data-arc span      6474 days (17.72 yr)  
   first obs. used      2001-05-15  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65605  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Feb-05 08:32:53  

Additional Information
 Jupiter MOID = 3.41333 au 
 T_jup = 4.467 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.991058208127802E-16 -1.211314876323891E-15 -1.116296700417806E-13 4.978478156140588E-14 -9.039388461664193E-14 -9.416344641456767E-15
q -1.211314876323891E-15 1.84224907304197E-15 1.596842041971637E-13 -7.572826411008047E-14 1.32447738501831E-13 1.412155309705862E-14
tp -1.116296700417806E-13 1.596842041971637E-13 3.352370847534281E-10 -1.371444885538403E-11 2.131033145024226E-10 4.47987468623858E-12
node 4.978478156140588E-14 -7.572826411008047E-14 -1.371444885538403E-11 3.087019153462047E-9 -3.082538422817474E-9 -1.242284967001332E-10
peri -9.039388461664193E-14 1.32447738501831E-13 2.131033145024226E-10 -3.082538422817474E-9 3.205931607931703E-9 1.256812663076325E-10
i -9.416344641456767E-15 1.412155309705862E-14 4.47987468623858E-12 -1.242284967001332E-10 1.256812663076325E-10 2.210271099113728E-11

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 0.125106416800394 0.125100431854118 0.125112401746002 3.00161171504993 2.99450788635755 2415972.983418002 0.168177371210728 298.093268674625 15.8224424813654 2.44170000627459 56327.1053699655 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
1915-May-21 22:13 00:01 Earth 0.499712420589618 0.499706904639194 0.499717936547656 5.22549263680873 5.22447215003284 2420639.425965158 1.3740911469071 291.789658031024 12.2236600257651 -19.6270274704902 828774.437781852 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
1917-Aug-04 13:39 < 00:01 Earth 0.252121460196662 0.252111589481673 0.252131330952495 7.27732297921561 7.27587061937409 2421445.068930462 0.62510897334024 517.595592945269 15.0844028413004 18.0919455778595 439028.298202175 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
1930-Jul-03 14:33 00:03 Earth 0.306406163720909 0.306399913225466 0.306412446237025 2.05585131568614 2.05161712297736 2426161.106479253 3.26426992617607 4955.31659841225 6.42005024244385 -86.3775019030185 908203.601795556 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
1932-Nov-08 15:19 00:01 Earth 0.464437074878928 0.464433113350337 0.464441036412192 5.01304723113107 5.0119026851106 2427020.138520812 1.00313696203949 210.852184166004 11.4304130629555 -20.6327513555383 825823.954206038 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
1945-Aug-10 19:38 < 00:01 Earth 0.109049645524757 0.109049186401064 0.109050104675588 3.10931618831301 3.10144803068411 2431678.318051414 0.132736736629465 98.8558989426643 10.2579973487914 78.1763670958763 774995.329369495 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
1958-May-31 18:21 < 00:01 Earth 0.44653692326969 0.446534782773584 0.446539063767167 4.23144224803825 4.23003185892519 2436355.264540445 0.581162365456335 113.752029751294 11.0456273331552 -20.5371832204087 758129.186351235 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
1960-Jul-31 14:54 < 00:01 Earth 0.348355334074747 0.348351730761348 0.34835893738983 9.9135095546003 9.91273797744008 2437147.120849317 0.308746138934685 183.730385965826 16.4838250883848 12.1391890940267 439639.200474614 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
1960-Oct-13 06:07 00:01 Earth 0.340742109879047 0.340739577612144 0.340744642147382 1.6360030762534 1.63121635386248 2437220.754871265 1.07882404183144 131.287132091721 12.7413462288356 -23.984169398408 168251.859864074 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
1973-Aug-09 18:35 < 00:01 Earth 0.220021023962073 0.220018302098295 0.220023745831529 4.33118516902777 4.32838823854117 2441904.274553434 0.513844120197633 146.887973057871 16.5957283912768 22.6995690504857 599236.624471266 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
1977-Oct-23 01:26 < 00:01 Mars 0.0865846297906034 0.0865833165091815 0.0865859431026632 5.15223408870846 5.15159229294524 2443439.559887205 0.195698067732518 105.53624546995 12.5522852113913 52.170074883447 762466.13928277 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
1979-Sep-08 20:41 < 00:01 Mars 0.0671956965556231 0.067195441508118 0.0671959516035523 4.33858641488065 4.33760429244378 2444125.362016139 0.160715229298421 96.8351950787797 12.6693015945996 89.3400097516934 799241.214392293 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
1981-Jul-28 20:58 < 00:01 Mars 0.0837524382491657 0.0837513925849266 0.0837534839388559 3.59865113602763 3.59770113011353 2444814.373633939 0.288304431924271 91.5502440406268 13.1557535352628 -56.1464826253679 917824.720677663 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
1988-Aug-10 05:23 < 00:01 Earth 0.126102977624093 0.126102126725305 0.12610382852868 3.72934557841045 3.72367555753255 2447383.724308798 0.110238527633322 61.7569252333646 13.0880844948202 48.2098468115174 567769.132084161 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2001-Jun-05 17:13 < 00:01 Earth 0.421558406307758 0.421557821621406 0.421558990994206 3.76159795849251 3.75991730083928 2452066.217461590 0.159865801095252 31.2611104467563 10.6053968207985 -22.8611777773649 922311.897090586 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2003-Jul-31 03:55 < 00:01 Earth 0.386480893119331 0.386480039011204 0.386481747227503 10.9667692681043 10.9661406048587 2452851.663518511 0.231281047264313 43.1589313560776 17.4883430804353 10.2324538116277 886712.158666651 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2003-Oct-21 08:32 < 00:01 Earth 0.366482330002433 0.366481752380986 0.366482907623985 2.54919108138506 2.5463374355233 2452933.855356014 0.184964169807443 30.7568845817932 12.1186171068632 -24.0602701096898 453935.284199249 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2014-May-08 19:14 < 00:01 Mars 0.0887127223171256 0.0887123986813156 0.0887130459529357 4.21946827961109 4.21870338443935 2456786.301105332 0.172273324682502 17.8130613324592 16.138433365295 -89.7354402642536 825688.985768467 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2016-Aug-10 23:49 < 00:01 Earth 0.196484704365615 0.19648435508916 0.196485053642071 3.98879154391458 3.98539038076392 2457611.492434913 0.218237924370569 18.3751763803732 17.1128608062508 60.282621151841 1053395.67170147 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2031-Aug-09 10:08 < 00:01 Earth 0.17072556902115 0.170724804136411 0.17072633390684 5.04990491029305 5.04681345093539 2463087.922316890 0.131895448404417 43.8720477787704 14.0730286905305 31.5690531852161 567762.390218492 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2044-Jun-20 17:56 < 00:01 Earth 0.353414670721271 0.35341358605885 0.353415755387388 2.51619886337499 2.51320079432677 2467787.247061428 0.38142411663972 79.1007651124619 8.43146570560757 -47.5027848756448 758009.270934522 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2046-Jul-25 07:23 < 00:01 Earth 0.495244170919011 0.495242576032415 0.495245765805692 14.1311683072325 14.1307875740179 2468551.807687978 0.277520271105253 80.0337323599517 21.0290008654572 6.69276896439048 693932.03748666 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2046-Nov-04 13:35 < 00:01 Earth 0.432092716534536 0.43209180571118 0.432093627358211 4.31712198815878 4.3156933805662 2468654.065952335 0.256920569490193 49.3012481526025 11.2802424600203 -23.7624525935831 862326.870964313 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2059-Aug-12 20:08 < 00:01 Earth 0.110104906373973 0.110104589691123 0.110105223061416 2.92627011057576 2.91798866326762 2473318.338594766 0.0854885426647858 42.158521243741 6.62212648526344 -69.7329442937695 1520618.43700563 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2072-May-31 04:22 < 00:01 Earth 0.453078815968826 0.453076375920987 0.453081256018649 4.37446836093981 4.37312380130618 2477993.681635026 0.660683846597886 130.588324251113 11.027984987483 -21.5479612601338 823329.57455357 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2074-Aug-02 08:19 < 00:01 Earth 0.33700225406549 0.336997788838085 0.337006719296056 9.66163893573455 9.66082057055783 2478786.846466111 0.337405981362527 228.554859363884 16.2170794345501 13.1119388527913 448034.892991722 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2074-Oct-12 18:47 00:02 Earth 0.332717298716649 0.332714095156362 0.332720502277181 1.35228792195553 1.34635290608729 2478858.282690727 1.50753009893583 161.14464071996 12.4333806590427 -26.4748479830671 134201.642400692 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2087-Aug-12 08:42 < 00:01 Earth 0.211684914257752 0.211679375638308 0.211690452901189 4.23894575808739 4.23597534548041 2483544.862478792 0.676797170070003 298.275403722736 16.749866460506 22.3336308875968 559097.960400826 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2102-Aug-11 07:21 < 00:01 Earth 0.164366376296992 0.1643610797587 0.164371672898855 4.8484857308972 4.84514113946353 2489021.806570495 0.292845665956938 309.570384543095 14.0535237895029 31.5993421349908 491257.720554734 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2115-Jun-20 23:48 00:01 Earth 0.362431242137461 0.362426880739407 0.362435603572042 2.69090367176387 2.68817023385206 2493718.491706819 1.46094173989807 283.424454124113 9.28748050600519 -40.2365187435115 730712.584359569 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2117-Jul-27 22:10 < 00:01 Earth 0.481826295735638 0.481820126410429 0.481832465061971 13.7016848707149 13.7012812678128 2494486.423298644 0.556323688458545 309.830839635022 20.5265283241351 6.86284776031309 326443.914093407 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2117-Nov-04 15:53 00:01 Earth 0.424308401280684 0.42430485151421 0.424311951051982 4.12855910046172 4.12703780965175 2494586.162148978 1.00194804527305 190.893645674334 11.2999421955172 -22.2789640126186 681800.779692876 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2130-Aug-14 16:26 < 00:01 Earth 0.114171768310147 0.114170299325887 0.11417323730583 2.88055037834914 2.87243721561067 2499252.184410185 0.115429077547273 93.0862191840747 8.77025388913388 -38.2745941815564 1693159.38588473 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2143-May-30 09:53 00:01 Earth 0.471708269778277 0.471704190597257 0.471712348964337 4.72788946039564 4.72669457449685 2503923.911938514 1.06143493882603 217.535762397711 11.3495581140895 -20.9280127146997 856526.771939055 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2145-Aug-05 10:14 < 00:01 Earth 0.30256263566998 0.302555166937203 0.302570104415571 8.72264370772773 8.72163405025362 2504721.926591877 0.528750971409954 385.183594160757 15.8677928316579 14.8432277029377 432560.671840515 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2145-Oct-04 02:25 00:05 Earth 0.306625668652828 0.306619727255758 0.306631612921696 0.0624284434035995 n/a 2504781.600604563 4.87057375675596 1510.55093968368 13.1412465191364 -78.696978604609 3422392.60339998 F 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2158-Jul-31 19:43 00:11 Earth 0.257086373814775 0.257078228809757 0.257094518924749 3.60304820439463 3.60017056288859 2509465.321492841 10.8316222462764 482.604843324828 44.1792993179287 -31.9200770877191 169037.702638715 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2160-Nov-17 14:35 00:01 Earth 0.4944986851027 0.49449419330378 0.494503176907101 5.66496620526442 5.6640149734742 2510305.107477673 1.11625972036295 238.615585275926 11.595082890816 -20.2843088088734 939786.480208782 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2173-Aug-13 01:25 < 00:01 Earth 0.130890856696895 0.130885826590938 0.130895886991687 3.86683771197069 3.86156974514608 2514956.558723799 0.304997703968048 353.044536126854 13.3548275607455 44.931551676267 545400.00570048 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2186-Jun-15 09:39 00:02 Earth 0.389642410310693 0.389635765742793 0.38964905491133 3.20973916237642 3.20760798008721 2519645.901756539 2.00940952240662 376.242460659923 10.1573684225663 -28.6100470798901 725143.073433645 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2188-Jul-30 05:09 < 00:01 Earth 0.443123602438862 0.443113310393865 0.44313389448935 12.6187383881859 12.6182618697173 2520421.714563524 0.766034389227545 519.093921168968 18.5830838791969 8.65943868128699 367131.05947973 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
2188-Oct-31 17:43 00:02 Earth 0.401497888755184 0.401491690982892 0.401504086543498 3.56741266612259 3.5655519118745 2520515.238259398 1.87615587823632 333.990429607289 11.3524095725759 -22.7136137535149 556007.560952834 T 83 CATAB v2.0e-lin.ifort 2019-Feb-05 08:32:55 2019-Feb-05 08:32
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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