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JPL Small-Body Database Browser
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(2019 UR4)
Classification: Apollo [NEO]          SPK-ID: 3879537
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1767927130963205 0.00060376  
a 1.055360184885831 0.00030249 au
q .8687801945060308 0.00038817 au
i 1.189172289640567 0.005295 deg
node 347.5374799241046 0.069542 deg
peri 137.6858667763481 0.055648 deg
M 125.1910401859778 0.029499 deg
tp 2458862.788492459506
(2020-Jan-14.28849246)
0.026759 TDB
period 396.0039204157896
1.08
0.17025
0.0004661
d
yr
n .909081909143761 0.00039084 deg/d
Q 1.241940175265632 0.00035597 au
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      12 days  
   first obs. used      2019-10-23  
   last obs. used      2019-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .35422  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-04 04:55:56  

Additional Information
 Earth MOID = .0138923 au 
 Jupiter MOID = 3.79021 au 
 T_jup = 5.817 
[ 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
absolute magnitude H 26.9   .32804 MPO502116 autocmod 2.8

[ 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
1919-Nov-04 07:36 2_21:52 Earth 0.0449446756543488 0.0220412363748422 0.0988974061358649 5.97889019202421 5.96896648126641 2422266.816455889 4192.21180428068 2854760.22340668 240.962187498493 -29.4710050763758 12615.2271715517 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
1922-May-13 23:54 3_02:04 Earth 0.393098079196719 0.259568703330643 0.527514976694607 16.3166780782537 16.3162626603418 2423188.495840094 4444.47777205255 6745352.14756189 356.883882774701 7.47658729240647 17288.8836738738 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
1934-Nov-01 06:12 7_04:56 Earth 0.0788805643514364 0.0187775797588743 0.261485681480373 7.0555027809427 7.05071359386382 2427742.758462460 10375.9375293913 9184643.81879485 92.7236091255417 -13.8294648084198 22630.5217070235 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
1937-May-10 13:58 4_19:44 Earth 0.323741117050167 0.180526270236463 0.467816675529316 14.2816937783811 14.2811174851198 2428664.082249165 6944.40799309331 7211241.72094321 65.1522065657738 5.96886051244973 61589.6435747296 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
1978-Oct-16 07:45 9_08:19 Earth 0.43496372493127 0.251068847026327 0.618857637748612 17.7476702200921 17.747325058717 2443797.823107327 13459.2238459652 9170013.07422945 59.1453452039324 -0.390188264351427 6064.83274928059 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
1992-Oct-27 09:12 5_17:24 Earth 0.203628944669815 0.0840705590561429 0.323704093945027 10.8072543429352 10.8060435167531 2448922.882995344 8244.18172289676 5996648.20871639 64.4066988740693 -4.05887564694933 24786.8531899436 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
1995-May-10 15:44 4_21:03 Earth 0.347757911739691 0.268730522407283 0.42678549747074 14.9963719945899 14.9958610703226 2449848.155608905 7022.86301160318 3940802.83341424 131.904512178558 0.58767462720961 3170.88232507857 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
2005-Oct-14 05:32 3_20:33 Earth 0.474642800550109 0.400234662081645 0.549050441553216 18.9329477926659 18.9326512886211 2453657.730465888 5552.63720104676 3710341.50047988 47.8912563453871 0.145046653834203 2983.77204774757 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
2008-Apr-25 23:28 5_16:10 Earth 0.0973537699004397 0.0133629839775797 0.197255582088477 7.57998683418484 7.57637527608362 2454582.477446623 8170.29358719253 5004445.83955658 67.4992622478493 7.93366561593851 21709.6539987078 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
2019-Nov-08 22:31 00:02 Earth 0.0188124030521992 0.0186009928352938 0.0190237482989527 4.53438551480318 4.50304159771392 2458796.438305256 1.706889519676 10394.3644925084 9.83055582277886 0.0151503506913757 144.222732832712 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
2020-Jul-21 07:24 05:35 Earth 0.225550274347893 0.222672775714995 0.228428060151768 5.06856760253546 5.06623638050131 2459051.808459097 334.68620776655 144056.744222792 201.795948927704 5.52433417783197 9483.77484225529 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
2021-Apr-25 15:54 06:56 Earth 0.0962751305977712 0.0918348772382606 0.100717666846792 7.5594309142486 7.55576894796006 2459330.162535310 416.335996474768 222705.383458811 92.9899425825756 6.29240568104702 11001.238824599 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
2031-Oct-19 05:34 4_08:19 Earth 0.387559012054247 0.296469219698332 0.478656730653038 16.3286568284575 16.3282357823525 2463158.731925761 6259.28098005909 4543318.02366565 41.1527827304734 -1.17695430222592 23226.6630718289 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
2034-May-03 16:15 5_03:23 Earth 0.247220911772724 0.149420154343274 0.345084975236419 12.0278801237419 12.0269840283582 2464086.176840256 7403.11491675745 4882494.13689584 104.965396920703 2.2638693134275 10561.0822146602 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
2044-Oct-27 01:58 6_15:12 Earth 0.209454368671635 0.0727631076181275 0.346906074581646 10.9811227604399 10.979964252281 2467915.582231457 9552.17220854958 6864135.81775345 55.1934192676311 -4.07382944847088 29929.8242673341 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
2047-May-12 08:22 6_03:41 Earth 0.418710044920648 0.297745237425559 0.539672808760544 17.0922253413129 17.0918530309735 2468842.848723128 8860.59491416471 6031798.53942238 154.791831296689 0.184395033641656 1018.12141202266 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
2057-Nov-02 11:17 2_19:13 Earth 0.0836322714150129 0.0261225304334585 0.145073860713781 7.1798999009597 7.17546121582902 2472669.970223430 4033.3231584786 3102117.55466312 68.4255711604331 -12.0054650403772 28170.7574283193 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
2058-Aug-05 21:16 7_23:26 Earth 0.225428359558583 0.223288976928451 0.227769012212403 5.06891375143143 5.06658142770506 2472946.385980572 11486.352196232 354086.169940308 184.755666242109 71.6200279551192 92568.1310964549 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
2059-Apr-19 21:09 4_05:27 Earth 0.0141136686425022 0.0138525376270846 0.0401967052327369 4.85826045407431 4.819244788483 2473203.381265112 6087.13977313798 1751024.42564834 49.7057431590852 79.1105265451341 30954.4638396586 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:59 2019-Nov-04 04:56
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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