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85640 (1998 OX4)
Classification: Apollo [NEO, PHA]          SPK-ID: 2085640
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 60 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4857567378096233 1.458e-07  
a 1.580626589341698 6.2544e-09 AU
q .812826573607924 2.3103e-07 AU
i 4.513636115924784 1.4176e-05 deg
node 299.7155447925194 0.00011462 deg
peri 117.1128760155431 0.00011297 deg
M 290.1015776409804 1.2585e-05 deg
tp 2456941.431224311504
(2014-Oct-10.93122431)
2.6114e-05 JED
period 725.8424301989223
1.99
4.3081e-06
1.179e-08
d
yr
n .4959754142525664 2.9438e-09 deg/d
Q 2.348426605075473 9.2925e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      240  
   data-arc span      3656 days (10.01 yr)  
   first obs. used      1998-07-26  
   last obs. used      2008-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .63923  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-27 05:50:11  

Additional Information
 Earth MOID = .00107567 AU 
 T_jup = 4.252 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.1 mag n/a MPO267962  

85640 (1998 OX4)          Discovered 1998-Jul-26 by Spacewatch at Kitt Peak (691)
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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
1934-Aug-04 05:29 00:20 Venus 0.115176725423885 0.115078024394226 0.115276066436715 6.36199395145848 6.35902971971649 2427653.728375649 19.791071432188 6846.75920336771 11.1797888321523 75.5368531565753 782762.835081236 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1958-Aug-17 20:59 00:05 Earth 0.454502277566554 0.454246649840132 0.454757905692495 25.3245442920645 25.3243127997171 2436433.374047468 4.53502798227422 12746.955694734 12.9849931851553 -6.66063531279537 555436.763758256 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1960-Aug-22 11:46 00:05 Earth 0.358833728874215 0.358593852983634 0.35907360283841 22.4826959085709 22.4823656349391 2437168.990487886 4.72992394891587 11823.0897386759 12.7057159277013 -8.57712192811467 564082.448837477 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1962-Aug-27 19:52 00:05 Earth 0.269185855924665 0.268965819761225 0.269405889058383 19.8088034405783 19.8083037428727 2437904.327929991 4.93106267491564 10681.3251434076 12.3862579524924 -11.6203510699539 570256.016723109 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1964-Sep-01 12:01 00:05 Earth 0.179928221354075 0.179736856268743 0.180119592297909 17.1026366375792 17.1017707510263 2438640.000872815 5.19067716566308 9182.36187915502 12.0545943035554 -17.905533174725 574679.489796804 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1966-Sep-07 15:46 00:05 Earth 0.101434095551324 0.101296003014769 0.101572270740837 14.4899799045318 14.488166946368 2439376.156898518 5.48070227178849 7219.43037968317 11.7908695942546 -34.3779678049089 575538.939680512 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1968-Sep-13 07:12 00:06 Earth 0.0610708680144825 0.061063035630062 0.0610789887604716 12.1776023843161 12.1740191073741 2440112.800165900 5.72913099979316 4880.56925714178 11.6366185684278 -82.7684073363366 574143.284604751 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1970-Sep-22 16:28 00:09 Earth 0.0925015028970694 0.0924163798093837 0.0925867320042633 10.0786540289435 10.0757956314672 2440852.186310515 8.59887450363868 3324.24020818592 11.9285992719433 47.4615035973845 572905.51144357 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1972-Oct-09 10:02 00:15 Earth 0.144861117571763 0.144797913286211 0.144924369943857 9.1211407399079 9.11912395591974 2441599.917833045 14.7132628506707 1484.38228748438 15.0522229300123 39.4352450796268 578920.76538634 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1974-Oct-29 04:08 00:16 Earth 0.175811290888814 0.175786679989642 0.175835912262412 9.77816252255421 9.77661248305152 2442349.671996383 15.9916847609897 592.234857670346 22.3467664978097 56.7922110843039 649454.243274643 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1976-Nov-15 15:55 00:14 Earth 0.18545857241483 0.185457803002538 0.185459342324951 10.2017694804037 10.2003611001833 2443098.162971156 13.8547106053677 358.286747249941 28.9896607324301 -77.3448348141715 630469.741209233 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1978-Dec-03 20:47 00:11 Earth 0.173759720749197 0.173742817632363 0.173776626617158 9.97423654673459 9.97269903989211 2443846.366091790 10.5018228649568 420.108351784315 25.9318214108421 -36.635841159993 400088.195794963 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1980-Dec-22 11:24 00:06 Earth 0.138685409758231 0.13865972560523 0.138711099297231 9.40375836298373 9.40171508570037 2444595.974733947 5.9828898461248 561.644877567738 20.9268415708458 -12.6832203197636 142006.360130351 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1983-Jan-09 08:17 00:02 Earth 0.078614589653181 0.0785947758390275 0.0786344053102209 9.99862780790111 9.99523747425996 2445343.845374147 1.77650130920177 566.260478557469 18.6472777189534 -0.941133547614643 15349.6424054324 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1985-Jan-18 02:53 < 00:01 Moon 0.00492271223368935 0.00492155827802422 0.00492386628677065 12.8048263260614 12.8043063905902 2446083.620222260 0.102291046986398 67.9267403011251 24.5009549096955 36.4308756273421 19469.9659943037 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1985-Jan-18 08:57 < 00:01 Earth 0.00648332843852881 0.00648200378737606 0.00648465312671947 11.9894106454709 11.9550834230322 2446083.872797715 0.106883106025239 51.3834648814277 18.5725487503318 22.5555522145272 19207.6874880347 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1987-Jan-13 00:02 < 00:01 Earth 0.0557510392832894 0.0557491637099212 0.055752914866976 10.5686693755798 10.5641463190123 2446808.501457138 0.130441036664407 60.3544853761225 18.2592162839296 6.46990011341977 100770.295328412 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1989-Jan-02 07:57 < 00:01 Earth 0.107761523224965 0.107759831594819 0.107763214863197 9.44574310589167 9.44312508749053 2447528.831377208 0.18923058961397 48.1790304949204 18.633252324883 5.8884576126961 222607.248252251 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1990-Dec-18 16:09 < 00:01 Earth 0.149969037793326 0.149967845658355 0.149970229928103 9.46923731574637 9.46736085802539 2448244.173241109 0.251076321852007 39.2052797782592 20.4172562040987 5.93033921210104 375690.782600397 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1992-Dec-02 06:13 < 00:01 Earth 0.176473562262747 0.176472706859525 0.17647441766502 10.0007934961138 9.99928365575867 2448958.758926646 0.255244727488602 35.1434125095403 21.85175611772 4.89530576141836 504488.305078609 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1994-Nov-18 06:04 < 00:01 Earth 0.187566545396777 0.187565833599681 0.187567257193775 10.2493225742434 10.2479364850337 2449674.752761081 0.22817150387959 31.4082276601833 21.6619315534709 1.80534834297633 604951.697570106 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1996-Nov-04 06:55 < 00:01 Earth 0.184031173121478 0.184030521589926 0.184031824652445 10.0042033712164 10.0027560335424 2450391.787917428 0.186064244443419 27.2356499836443 19.93965627935 -2.39444130780883 675602.337418375 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
1998-Oct-20 14:05 < 00:01 Earth 0.167800876121383 0.167800249156759 0.167801503085601 9.44207229673132 9.44039043808551 2451107.086488148 0.131968705300533 22.7068839014891 16.492770715233 -6.61324345214233 718670.446213879 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2000-Oct-04 15:06 < 00:01 Earth 0.137872899860823 0.137872309708789 0.137873490012972 9.08611719694656 9.08399000856349 2451822.128890635 0.0691996548218145 19.2064094528353 12.3959755743728 -4.77835277831536 681644.728146034 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2002-Sep-22 17:40 < 00:01 Earth 0.0974409183210773 0.0974404566152186 0.0974413800268388 9.89067192160668 9.88790685305529 2452540.236414302 0.025696347777631 16.2000449674797 8.68926620526214 -3.75519144928257 600144.029643054 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2004-Sep-14 10:22 < 00:01 Earth 0.0642889391478189 0.0642885856146932 0.0642892926809742 11.4810825864947 11.4774721347238 2453262.932063020 0.012757802094183 13.3598896127799 3.20174418616848 4.26483378459663 538841.868974449 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2006-Sep-09 20:24 < 00:01 Earth 0.0711532141150155 0.0711529102798814 0.0711535179499937 13.1538758071823 13.1510286522476 2453988.350263225 0.0147856520727135 12.8688474603395 11.535183545318 10.6438073411183 633323.809451342 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2008-Sep-04 17:24 < 00:01 Earth 0.120227461044903 0.120226926146141 0.120227995943693 15.1048381889738 15.1033709066088 2454714.225322316 0.0191868842806065 25.7995357319118 12.7893798211462 -23.6960883843986 685758.739943273 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2010-Aug-31 13:37 < 00:01 Earth 0.188589304790621 0.188588483822054 0.188590125759045 17.3440135468476 17.3431989253022 2455440.067667054 0.0223475149458106 39.7183665163474 13.1046000797825 -14.6237865632751 736904.215531035 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2012-Aug-26 18:12 < 00:01 Earth 0.26235397295923 0.262352906715466 0.262355039202908 19.5802661549596 19.5797474601849 2456166.258347190 0.0245947035860184 52.2710075448477 13.5253718712122 -10.3491879444923 785452.110857987 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2014-Aug-23 02:13 < 00:01 Earth 0.340983747845947 0.340982467799755 0.340985027892106 21.9352215384896 21.9348653005433 2456892.592240906 0.0260631658915609 63.5328228242587 14.0682305375337 -7.89126100186815 836254.185106983 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2016-Aug-18 07:12 < 00:01 Earth 0.422426970710727 0.422425497781958 0.422428443639635 24.3383261462653 24.3380669836681 2457618.799898171 0.027173603198385 73.7898804521877 14.5728377348621 -6.28921456055812 886127.516921413 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2018-Aug-14 19:42 < 00:01 Earth 0.499863082402582 0.499861430551412 0.499864734253748 26.6450001075879 26.644800053607 2458345.320940297 0.0281190238959894 83.2542289787431 15.1090427045812 -5.26861037927673 925358.616576367 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2056-Mar-21 02:44 < 00:01 Mars 0.0897468188592878 0.0897449329729715 0.0897487047910613 11.1485675529455 11.1482814162043 2472078.613619668 0.0541707130220386 123.343144137411 21.8405733464841 48.724179157766 426388.45585359 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2134-Feb-19 03:50 < 00:01 Earth 0.491055314203474 0.491053668206664 0.491056960200202 26.807640399763 26.8074379930129 2500536.659481986 0.0630860557331074 81.4874456335903 20.5825968027765 0.00913315072935511 832371.099047993 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2136-Feb-15 15:34 < 00:01 Earth 0.409193550852196 0.40919177939837 0.409195322305775 24.3779059988757 24.3776388892384 2501263.148822576 0.0680966000423019 86.7629377786509 20.0522839933058 0.422902349090772 641917.11512971 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2138-Feb-11 07:43 < 00:01 Earth 0.33175926337084 0.331757372828613 0.331761153912514 22.0785919915233 22.0782282260276 2501989.821806112 0.0735600181461541 91.165760489109 19.5191406430257 0.80363631645574 486931.698270932 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2140-Feb-07 15:16 < 00:01 Earth 0.253591935216484 0.253589954011036 0.253593916420806 19.7065343217422 19.7060011433509 2502716.135799470 0.0801137757487236 93.2601691601646 19.1272150467871 1.03903542403462 355350.010057204 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2142-Feb-02 20:20 < 00:01 Earth 0.175148860591426 0.175146824058496 0.175150897122212 17.3994728534052 17.3985985143832 2503442.346972242 0.0869978656832471 92.2456365313292 18.7164314971322 1.39599358227697 240770.694420041 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2144-Jan-30 02:52 < 00:01 Earth 0.105109447525266 0.105107440438722 0.105111454608305 15.2815531482924 15.2798942235647 2504168.619472118 0.0938674911874636 86.0197727152931 18.4004058247127 1.92636365476684 149348.027030579 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2146-Jan-25 03:32 < 00:01 Earth 0.0425711637127309 0.0425693833811878 0.0425729440401265 13.4185450796139 13.4138799157143 2504894.647033238 0.0985143448083364 70.6855123372839 18.2427687918804 3.36818937849673 70866.1613447096 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2148-Jan-21 19:50 < 00:01 Moon 0.00187428821133268 0.00187374117150741 0.0018748352761741 12.4260089082791 12.4246016450826 2505621.326578533 0.0874434646645035 33.7561456252872 22.9386508229091 55.9976718289667 10878.3151202166 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2148-Jan-22 03:24 < 00:01 Earth 0.00197989451183159 0.00197939655935259 0.00198039247153885 12.2954558300217 12.1855117824842 2505621.641320214 0.0893843237021852 24.4078857728228 17.6052559710472 72.1752872268814 11882.4082261451 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2150-Feb-06 02:40 00:03 Earth 0.228034661114583 0.227907730348954 0.228161586429353 19.0084636261587 19.0078489144315 2506367.611320175 2.90507304674111 5943.26271496592 13.1167825897615 1.65931615797405 64669.7157822766 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2152-Feb-18 04:22 00:04 Earth 0.454155432801741 0.453911177121119 0.454399686956445 25.7344771271083 25.7342491483321 2507109.682286476 4.17500594904228 12107.142017067 13.0435527296776 1.53999312681017 128070.21791332 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2162-Mar-16 19:57 00:40 Venus 0.142304352734587 0.141654630606706 0.142953336283199 6.83406144374719 6.83182816543324 2510789.331036209 39.840078121131 23612.1445162927 17.9008100181245 13.6275788406838 154393.580515433 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2188-Sep-01 14:47 02:02 Venus 0.11371072882586 0.11304282515378 0.114401988962463 6.39529988282897 6.3923130699502 2520455.115822659 121.644413755267 43170.0836501597 20.2640413922452 70.9036460872279 417647.175652119 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2194-Aug-20 09:42 00:52 Earth 0.48114902623383 0.478210493587904 0.484087704582121 26.089253361981 26.0890410996829 2522633.904024608 51.6314333047212 146958.828377195 65.7937041501518 -6.49175738931431 113651.620853613 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2196-Aug-31 06:55 01:14 Earth 0.264565117417687 0.261364844665138 0.267764845957981 19.6728311746198 19.6723192352139 2523375.788425005 73.8430304963715 155369.952841132 62.1601535583252 -12.0776886647037 115819.549550438 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2198-Sep-14 14:08 02:10 Earth 0.0743150731797954 0.0724497054144411 0.0762834637104465 13.2669363845913 13.2642336148993 2524120.088722963 130.168576317413 136538.856823955 54.9606782211528 -53.1155427237661 123786.988176013 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50
2200-Oct-18 00:55 08:53 Earth 0.150423977295638 0.148604818037306 0.152288299769423 9.26779142809993 9.26587997420942 2524883.537875745 533.272075559919 43310.3361860927 38.0917035582263 43.516090455965 259959.629192525 T 60 CATAB v2.0c-linF95 2013-Aug-27 05:50:22 2013-Aug-27 05:50

Alternate Designations
 1998 OX4 = 2002 PJ34 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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