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JPL Small-Body Database Browser
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(2019 YF4)
Classification: Apollo [NEO]          SPK-ID: 3959226
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .214984647521669 3.9574e-06  
a 1.26273095264091 6.5062e-06 au
q .9912631838727026 1.1063e-07 au
i .2064411068949708 4.8361e-06 deg
node 260.1698730385738 0.00037748 deg
peri 216.5828971255739 0.00038547 deg
M 93.79852985291502 0.00071328 deg
tp 2458865.461315991410
(2020-Jan-16.96131599)
2.2229e-05 TDB
period 518.2802579030127
1.42
0.0040056
1.097e-05
d
yr
n .6946048870481341 5.3684e-06 deg/d
Q 1.534198721409118 7.9049e-06 au
  Orbit Determination Parameters
   # obs. used (total)      88  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      28 days  
   first obs. used      2019-12-29  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .4667  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 07:28:06  

Additional Information
 Earth MOID = .0078231 au 
 Jupiter MOID = 3.53886 au 
 T_jup = 5.083 
[ 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 27.0   .38767 E2020-AB7 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
1943-Jun-22 16:23 2_04:50 Earth 0.499425978209185 0.49536824522855 0.503485488615247 7.66954216678213 7.66884651566854 2430898.182428525 3169.66925620148 207769.271690919 2.54409662784756 -13.1196961161386 3795556.69201765 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1946-Aug-28 05:15 2_11:17 Earth 0.457600828570719 0.450442758268595 0.464798340310167 7.07489427333963 7.07407121453902 2432060.718932467 3556.69263970501 415929.926609109 6.6766629422937 30.6416411477823 2941279.35341319 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1949-Dec-03 03:18 2_04:23 Earth 0.191862659901435 0.159910144615405 0.22381418284002 8.87363024878288 8.87206508831482 2433253.637601995 3143.28662210484 1593169.38200033 4.29940488426021 -0.970963724903964 78091.3952121855 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1950-Apr-06 22:04 7_01:16 Earth 0.252842806880958 0.232359244806833 0.273309361949306 2.73357776143829 2.72971998657086 2433378.419548532 10155.8599250263 1015774.66541038 5.40775882931312 4.58953022892996 142645.045424062 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1956-Aug-30 23:56 5_05:46 Mars 0.0778644728246267 0.0648219120114435 0.0919393503487864 4.97219492715138 4.97145540533435 2435716.497296048 7546.28030040385 810990.29892166 5.06115192711252 32.9363257590605 1363645.3855712 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1956-Sep-17 11:28 2_14:10 Earth 0.388463639326473 0.3794916162176 0.397477239628548 5.86094203882178 5.85977162909755 2435733.977994882 3729.70093236145 491187.380869269 7.27085708589857 24.1396712707847 1635147.48891759 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1957-Mar-17 04:04 1_08:00 Earth 0.478551324001768 0.453196128346711 0.503906887489565 17.4665819227782 17.4662631509946 2435914.669401153 1919.85724113356 1264543.35044829 3.8551266736333 1.0437091978666 272372.806744612 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1959-Nov-19 04:32 1_04:53 Earth 0.441772300847811 0.419119402623887 0.464426463469124 16.4206010859859 16.4202337785831 2436891.689198434 1732.82789294167 1130254.59923025 8.27447661921381 1.94864833787514 215641.667213637 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1960-May-11 03:55 2_09:42 Earth 0.374404433822053 0.365614563229393 0.383195244249056 5.5179314268566 5.51664155716614 2437065.663130757 3462.33727532861 439335.927159188 4.88588692777894 4.34102690859126 423678.459594066 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1966-Oct-18 12:31 2_12:08 Earth 0.277708357568103 0.26949274961109 0.28594161329289 3.52317957715461 3.52045526687398 2439417.021288607 3607.98574630076 424729.266950975 6.66879537221662 15.7439869889295 576629.183239255 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1967-Mar-03 13:37 21:38 Earth 0.232447695851174 0.217867903529864 0.247027448067555 10.0991761031914 10.0980410255411 2439553.067453576 1298.18355167696 727018.347514765 3.42809955930767 0.939787933662402 117649.890105599 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1967-Jul-31 00:10 07:02 Mars 0.0538464593572949 0.0443481893481797 0.0637948502874456 6.92269789047764 6.92192982587827 2439702.507084770 422.430721076431 543593.506743468 3.57520433619037 -26.4070184506749 958635.813365606 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1970-Jun-02 08:55 18:51 Earth 0.448184448833878 0.445521770274681 0.450847119067153 6.85820226207549 6.85733535462873 2440739.871773188 1130.78755623506 132741.856183492 3.55217513383393 -0.204328112244932 34505.5356147574 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1977-Feb-07 10:35 11:29 Earth 0.0303789828990983 0.0291157832267109 0.0316421893583416 3.60062397201972 3.57618190538964 2443181.941249806 689.392170049529 62993.6742354054 2.3140119751874 5.27502296960539 132756.414923315 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1980-Jun-08 20:25 03:19 Earth 0.475450188062637 0.475074115064788 0.475826261598281 7.25442979699167 7.25365724596079 2444399.350942689 199.012879514608 18770.1997591561 2.99908245643176 -2.74073181133256 627446.891361565 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1986-Oct-24 09:11 09:40 Earth 0.266388605123003 0.265074544034606 0.267702997450226 3.1189267507331 3.11571815512022 2446727.882835654 580.068908155101 67190.4262716664 6.48196862974484 13.8897971574048 463566.31374663 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1987-Mar-02 08:27 03:28 Earth 0.211874382757242 0.209724137473909 0.214024626306358 9.48655990966768 9.48523417839885 2446856.851880113 207.912632049245 107219.73324788 3.3940248781142 0.99886329471513 113622.493088272 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1990-May-24 03:15 04:28 Earth 0.424561601253323 0.423906410061777 0.425216793890831 6.4021411027485 6.40116075613036 2448035.635135021 268.090979501528 32695.1288909455 4.05643181659679 2.65147556170058 383207.380166144 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1996-Sep-24 12:47 05:07 Earth 0.373511475386497 0.372726055035406 0.374297162913114 5.52009737444687 5.51880492812927 2450351.032660794 306.695260920003 42221.8202700928 7.34896213636414 21.9983881620967 1366349.36222597 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1997-Mar-14 23:23 02:37 Earth 0.429764303538553 0.427775575353576 0.431753034186563 16.0541259559215 16.0537397663213 2450522.474359637 157.253644234154 99183.1656401826 3.83056877685294 1.06289742149898 245396.858273483 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
1999-Nov-24 22:15 02:33 Earth 0.358901257243334 0.356982665752203 0.360819852014076 13.9479444321183 13.94741215787 2451507.426796945 153.0039343246 95687.7779812503 7.04601204441901 1.19815401275637 121342.373072243 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2000-May-01 12:45 05:29 Earth 0.34267362640267 0.341806723605598 0.343540543388796 4.84931727316511 4.84771357403116 2451666.031534374 329.429809953697 43368.9598136532 5.15598589693662 5.2548438314003 400915.631407239 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2006-Sep-05 06:24 03:11 Earth 0.44439269467802 0.443975536268878 0.444809968162812 6.78578536142502 6.7849017250105 2453983.766568521 190.70464694571 23664.7776769005 7.05064413478575 28.491461333816 2441184.37452279 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2009-Dec-08 06:49 02:50 Earth 0.142938242674913 0.141534741444393 0.144341740828507 7.36968836565805 7.36715854728774 2455173.784052711 170.115985845507 69979.0349641678 3.5992518866904 -1.42682597490233 100446.119742021 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2010-Mar-23 00:21 15:13 Earth 0.218882497270021 0.217768403763248 0.219994774770508 1.25115273113847 1.24138509304439 2455278.514391684 913.164582953967 46469.1313711043 4.72475677194546 1.63268614338064 2589.79333741522 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2016-Aug-22 05:46 00:50 Earth 0.483887222444649 0.483830912451481 0.483943539483703 7.43140179260676 7.43066079106365 2457622.740414406 49.9191973753744 4045.29066562401 5.25635503827167 46.0506850293962 5444858.6625506 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2020-Jan-10 09:25 < 00:01 Earth 0.00954448834371407 0.00954404748008589 0.00954492920420093 2.89711822613741 2.79910086284231 2458858.892083832 0.0407390329186485 20.1669821554396 0.886290405716509 -2.2823769818101 31743.0461197299 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2020-Jan-10 12:35 < 00:01 Moon 0.00733224756651263 0.0073318092689983 0.00733268586412033 1.92861902546029 1.9263000487798 2458859.024553567 0.0446001185110529 21.8954610888052 0.865828118990037 5.6698948050195 72974.31783338 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2026-Sep-13 00:15 02:08 Earth 0.412736535661491 0.412403425861855 0.41306970036206 6.35059056300564 6.34957393962968 2461296.510072239 128.415616543579 18229.6515510223 7.19589752362935 24.3635935406391 1900442.53146366 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2029-Nov-23 02:50 01:51 Earth 0.415015302886654 0.413571327004772 0.416459283695446 15.6028624647354 15.6024509838247 2462463.618337538 111.444952585117 72040.6605300457 7.63063037868142 1.86828023594617 208273.859222239 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2030-May-12 05:00 03:52 Earth 0.362371287697717 0.36181061044936 0.362931968785867 5.31391467397214 5.31253078720832 2462633.708202987 231.502546100709 28020.6282694311 4.56270860113891 4.35084399726091 434215.607636158 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2033-Oct-24 02:08 04:04 Mars 0.0460669530507291 0.0455839388048318 0.0465922942608778 5.66828163948921 5.66718514289864 2463894.589092379 243.641418554373 74045.4023638489 5.33039059566469 70.1384240816062 1254800.53107448 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2036-Nov-19 04:27 2_13:00 Earth 0.204964118896453 0.2028660509956 0.207035222894072 0.698193020484733 0.679318793207418 2465016.685751535 3659.68731944817 243291.296086413 3.89417819535923 -52.2608122665997 189293.037089003 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2037-Feb-26 04:02 05:27 Earth 0.125708101886473 0.123259074370246 0.128157100800508 6.81029965670385 6.80718663508448 2465115.668265967 326.553343161436 122085.747351076 3.15789300046499 1.24043443963378 86596.100579099 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2040-Jun-17 01:34 04:20 Earth 0.478419843569452 0.477984139538918 0.478855554121407 7.35847499063436 7.35771809205454 2466322.565387993 260.177893936078 21904.7901748854 2.56434032150876 -7.39458506410936 2121863.34389021 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2043-Aug-27 03:59 04:13 Earth 0.467035105619959 0.466585060239652 0.467485345773189 7.23435759534396 7.23356894130628 2467488.665847211 252.718536120525 27019.9982883392 6.31988562778134 33.842110371147 3569804.30257833 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2046-Dec-07 03:25 03:27 Earth 0.184296823500241 0.18217661316088 0.186417028702434 8.61336863386668 8.61168996979878 2468686.642260430 206.690319889065 105715.051096922 3.9614565537954 -0.997302142855562 83172.6877623051 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2047-Apr-08 19:29 11:44 Earth 0.247065466604914 0.245679838664369 0.248450979993345 2.57264915867078 2.56845375253923 2468809.311574339 703.899176122797 68582.9924795646 5.115537724342 3.95856489948169 123365.403152664 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2050-May-06 21:04 00:45 Mars 0.0648193707079281 0.0635996472867491 0.0660440899933494 7.09396642988536 7.09334379807277 2469933.377969137 45.1166986280805 67230.1194676074 3.1966303091258 -24.966671812671 1215864.09625693 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2053-Oct-01 04:09 03:31 Earth 0.348549389191751 0.348043388824918 0.349055509934961 5.12045606957748 5.1189629220758 2471176.673100012 211.324756013371 27224.5607761426 7.04505503811927 22.1508227535835 1298222.34573756 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2054-Mar-15 03:53 01:37 Earth 0.379599994830299 0.378393504432644 0.380806485687538 14.5175340915894 14.5170505870716 2471341.661596036 97.2223995085362 60166.4147988633 3.68460634815562 0.857702755109247 176697.351914351 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2057-May-28 12:46 01:41 Earth 0.419925445211909 0.419674716027351 0.42017617432438 6.38579385078215 6.38480014214832 2472512.032083924 101.369272992033 12499.8378462154 3.64757716720126 0.869512443033419 136935.223254438 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2064-Jan-31 23:57 02:43 Earth 0.0129164920766378 0.0128105157464658 0.0130224854247307 2.98311121222393 2.91313960965278 2474951.497598814 163.024480408173 5336.91807738252 1.8595690353477 10.6777181991767 156694.666687213 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2067-Jun-13 19:25 01:34 Earth 0.477893540205955 0.477767502474287 0.478019579186375 7.28265510397131 7.28188948218529 2476180.308974651 93.5140708994298 6402.0006387094 2.39454194898328 -11.0391511563474 3173388.96847467 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2073-Oct-20 00:25 06:45 Earth 0.294812746019561 0.293824659736919 0.295801076181139 3.84381720824148 3.84146521394296 2478500.517649870 404.955293464801 51060.8951926493 6.18384362458903 15.6422784346085 728343.124804323 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2074-Mar-09 10:07 02:28 Earth 0.260029843783632 0.258227678857992 0.261832006427561 10.967524706781 10.9665903794792 2478640.921342069 148.221631456226 89858.4117814412 3.46522675559426 0.447362536291313 61671.4086788213 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2077-May-21 14:08 05:09 Earth 0.403100647114182 0.402362097470305 0.403839197388115 6.0013534333746 6.00025192065825 2479810.088803677 309.46970477673 36837.075786228 3.56790021169761 2.12662113104582 315752.571162996 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2080-Oct-31 00:52 10:21 Mars 0.071626943832981 0.0700510696326605 0.0732164247947902 5.26618206369377 5.26542302276276 2481068.536453889 621.329537830712 93019.2718894385 5.06939443523437 31.9425730365075 1220309.36681549 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2083-Sep-18 10:27 06:39 Earth 0.414505855146811 0.413522035093093 0.415490191431457 6.28855036197215 6.28752809002099 2482120.935338984 398.799499510884 54223.936936001 7.00887963348702 25.2262045040129 1962032.97793613 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2086-Feb-01 12:24 05:49 Mars 0.0321238095873982 0.0309046998335939 0.0334673067006964 6.01517608514052 6.01369430321142 2482988.016950881 349.256169813833 118450.15645407 2.80813967841568 57.2823321767596 1440860.04719629 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2086-Dec-06 15:04 05:09 Earth 0.226720517346383 0.223325255556979 0.230115763156709 9.94200047278901 9.94081832010112 2483296.128054550 308.8361905621 169280.969547212 4.51965555577087 -0.257875720523548 22140.8413629454 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2087-Apr-17 04:42 15:06 Earth 0.275238260879299 0.273216096521082 0.277260385071742 3.24030135534991 3.23731240639373 2483427.695875659 905.645667069834 100700.131625344 4.66675559858777 4.33319719897968 209419.451888976 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2093-Aug-27 22:17 07:13 Earth 0.481678830279891 0.480867339033676 0.482490924161802 7.40930801404382 7.40856139505725 2485752.428296571 432.955116588228 48585.755525772 6.38275597399908 33.5913980334088 3573882.69492139 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2097-Jan-18 14:32 2_15:14 Earth 0.0085962372173645 0.00838535145826311 0.00880725304845469 2.84194677207425 2.73070391353423 2486992.105433851 3793.97473261144 10654.9285600984 1.29929230297892 9.81428114455327 148664.315133812 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
2100-Jun-24 07:53 5_15:35 Earth 0.492513615369898 0.484750778094912 0.500285341108356 7.52194646078983 7.52122720288713 2488243.828595596 8135.29042446137 401130.603853868 2.56078232250373 -15.1293277621927 3899273.01806059 T 12 CATAB v2.0f-lin.ifort 2020-Feb-26 07:28:09 2020-Feb-26 07:28
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