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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 61 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4857566679997133 1.347e-07  
a 1.580626585378762 5.7735e-09 AU
q .81282668191341 2.1342e-07 AU
i 4.513636325000653 1.353e-05 deg
node 299.7155554732146 0.00010755 deg
peri 117.1128483281057 0.00010594 deg
M 290.1015882840529 1.1738e-05 deg
tp 2456941.431202322620
(2014-Oct-10.93120232)
2.4346e-05 JED
period 725.842427469181
1.99
3.9769e-06
1.089e-08
d
yr
n .495975416117826 2.7175e-09 deg/d
Q 2.348426488844113 8.5781e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      241  
   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      .62618  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 16:36:47  

Additional Information
 Earth MOID = .00107573 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 05:20 00:18 Venus 0.11520200957706 0.115110420460361 0.115294143550889 6.36099612576679 6.35803207965353 2427653.722219854 18.2872238649933 6321.81643735907 10.3733419551344 75.4005974711257 843185.652891573 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1958-Aug-17 20:54 00:04 Earth 0.454567278485987 0.454331163149863 0.454803394164073 25.3264686065376 25.3262371648792 2436433.370738730 4.18830931104961 11774.0267945142 12.647372595268 -6.65980398460217 570284.276886104 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1960-Aug-22 11:42 00:04 Earth 0.358894733183612 0.358673164513605 0.359116300211187 22.4845097987445 22.4841796078925 2437168.987288674 4.36829607662176 10920.8458470361 12.3661795653326 -8.57573474685317 579586.721493909 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1962-Aug-27 19:48 00:05 Earth 0.269241820687571 0.269038573268824 0.26944506552092 19.8104884381772 19.8099888868349 2437904.324829143 4.55405069994804 9866.43544207483 12.0426533326989 -11.6179123331555 586540.260277289 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1964-Sep-01 11:57 00:05 Earth 0.179976901394109 0.179800128432434 0.180153679342722 17.1041598379559 17.1032942627075 2438639.997832356 4.79382132568881 8482.14977224703 11.7028013999126 -17.9003774116472 591966.154938011 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1966-Sep-07 15:42 00:05 Earth 0.101469239860142 0.101341647784433 0.101596902374474 14.4912832555317 14.489471088355 2439376.153863886 5.06172335861477 6669.34994636169 11.4231197299026 -34.3636656891173 594076.533635797 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1968-Sep-13 07:08 00:05 Earth 0.061072887137064 0.0610655741552606 0.0610804461592863 12.1786048251383 12.1750219617024 2440112.797053326 5.2912105888648 4509.08372052129 11.2426083800468 -82.737972720148 594266.591514168 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1970-Sep-22 16:21 00:08 Earth 0.0924797878346188 0.092401156311914 0.0925585098588015 10.079419125341 10.0765602736771 2440852.181433688 7.94086893109248 3071.49525202035 11.4758366326211 47.4703172103547 595478.019682742 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1972-Oct-09 09:51 00:14 Earth 0.14484497295474 0.144786567539803 0.144903419416338 9.12105044517661 9.11903341639811 2441599.910394844 13.5891400920141 1371.78573986776 14.3452386485429 39.4267685413968 607274.308300535 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1974-Oct-29 03:59 00:15 Earth 0.175804966380953 0.175782217310549 0.175827724395071 9.77793900707056 9.77638887636195 2442349.666260878 14.7722405452996 547.230568091717 20.9660867335896 56.7559611653696 691909.118011529 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1976-Nov-15 15:48 00:13 Earth 0.185458661137909 0.185457958647143 0.185459364051671 10.2017500120997 10.2003416298651 2443098.158547836 12.7988040126018 330.768308744407 26.7936801261232 -77.3876099460722 682255.636667968 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1978-Dec-03 20:42 00:10 Earth 0.173763963893963 0.173748357107515 0.173779573027372 9.97432509254213 9.97278763689773 2443846.362483739 9.70194380567464 387.778921830787 23.9876753917777 -36.6378933038207 432554.123431405 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1980-Dec-22 11:20 00:06 Earth 0.138691876267948 0.138668153966367 0.138715603165828 9.4038115378345 9.40176836738521 2444595.972036353 5.52777556436973 518.621229026933 19.4708112241834 -12.6683913947113 152493.557707562 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1983-Jan-09 08:16 00:02 Earth 0.0786195572362394 0.0786012525298182 0.0786378635161793 9.99851083102726 9.99512067196502 2445343.844395158 1.64175690122972 523.086310071142 17.3742496026737 -0.919695578817731 16520.3296991886 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1985-Jan-18 02:53 < 00:01 Moon 0.004922408998033 0.00492134363374215 0.00492347444363848 12.8048351951931 12.8043152280517 2446083.620230131 0.0940567468726849 62.5712221577278 22.9254339458624 36.315902845708 20831.2837594104 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1985-Jan-18 08:57 < 00:01 Earth 0.00648297127540338 0.00648174991871953 0.00648419266299207 11.9894209895925 11.9550919029691 2446083.872803469 0.0982795799210996 47.3311371027141 17.3592256958508 22.4459993453287 20636.2840718387 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1987-Jan-13 00:02 < 00:01 Earth 0.0557504958185022 0.0557487671201002 0.0557522245257203 10.5686807871266 10.5641576913441 2446808.501501292 0.120007766064056 55.6286165050315 17.0843948328182 6.35821345316975 108931.65598543 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1989-Jan-02 07:57 < 00:01 Earth 0.107761025928216 0.107759465864494 0.107762585998774 9.44574635042625 9.44312832084129 2447528.831469483 0.174218583807007 44.44321996532 17.4734077892459 5.6919779656934 240631.76022044 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1990-Dec-18 16:10 < 00:01 Earth 0.149968689903981 0.149967588552922 0.149969791254566 9.46923086330946 9.46735439995624 2448244.173344909 0.231261439167136 36.2033531141219 19.2242492700355 5.49051496432592 405778.959067754 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1992-Dec-02 06:13 < 00:01 Earth 0.176473354490957 0.176472562081569 0.176474146899535 10.0007874385628 9.99927759551527 2448958.759009165 0.23516839562549 32.4964503397997 20.647389655617 4.06523217526829 544465.868276741 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1994-Nov-18 06:04 < 00:01 Earth 0.1875664341561 0.187565773252671 0.187567095059119 10.2493189894857 10.247932898969 2449674.752828294 0.210282696536613 29.1085945127431 20.5079368524443 0.378564851426802 652401.305127202 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1996-Nov-04 06:55 < 00:01 Earth 0.184031128523014 0.184030522439848 0.184031734605707 10.0042017999601 10.0027544617079 2450391.787972422 0.171530320369996 25.3322163861549 18.886705887053 -4.64360080025477 727715.565393402 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
1998-Oct-20 14:05 < 00:01 Earth 0.167800883183315 0.16780029891288 0.167801467453071 9.44207183321029 9.44038997455269 2451107.086534085 0.121712855291812 21.2254248076166 15.6161311456458 -9.39954297879037 772893.856170878 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2000-Oct-04 15:06 < 00:01 Earth 0.137872932241762 0.137872379911304 0.13787348457194 9.08611510886543 9.08398792049305 2451822.128922408 0.0640213707697078 18.0166252521104 11.7411382905035 -7.29273060566275 731000.871720693 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2002-Sep-22 17:40 < 00:01 Earth 0.0974409346162116 0.0974404950442992 0.0974413741881672 9.89066815857609 9.88790308943488 2452540.236423562 0.0244430110950335 15.3853217358222 8.18675258896868 -5.67437460527437 636320.013283647 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2004-Sep-14 10:22 < 00:01 Earth 0.0642889292959161 0.0642885845877526 0.0642892740039547 11.4810796893088 11.4774692360731 2453262.932061708 0.0129758693056711 12.9489105701743 3.38779974648704 4.38210921835074 553111.529658348 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2006-Sep-09 20:24 < 00:01 Earth 0.0711532374946005 0.0711529439306364 0.071153531058368 13.1538742952344 13.1510271409081 2453988.350256221 0.014540942273183 12.4157332564061 11.142372714213 17.682008423152 660960.419685788 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2008-Sep-04 17:24 < 00:01 Earth 0.120227557070156 0.120227054375572 0.120228059764753 15.1048384022545 15.1033711210822 2454714.225312091 0.018321323267646 24.186744558123 12.4889747310893 -24.0437019515781 721864.492394284 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2010-Aug-31 13:37 < 00:01 Earth 0.188589461253865 0.188588694920831 0.188590227586907 17.3440152708375 17.3432006500488 2455440.067653429 0.0210838268077337 37.0449368454546 12.8074867959152 -14.8103111822976 779520.174961516 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2012-Aug-26 18:12 < 00:01 Earth 0.262354181977032 0.262353189290674 0.262355174663315 19.5802692534719 19.5797505591926 2456166.258331758 0.0230653479338125 48.640869775125 13.220344720484 -10.4860010838186 833985.001925657 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2014-Aug-23 02:13 < 00:01 Earth 0.340984004872491 0.340982814887515 0.340985194857574 21.9352259980168 21.9348697604115 2456892.592223212 0.0243560633343289 59.0423644159485 13.7442020943612 -8.00619309272542 890932.964036183 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2016-Aug-18 07:12 < 00:01 Earth 0.422427270513771 0.422425902642962 0.422428638384619 24.3383317207642 24.3380725584103 2457618.799878355 0.0253337211867626 68.5090339662529 14.22873453603 -6.39083716509806 946738.590409518 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2018-Aug-14 19:42 < 00:01 Earth 0.499863422118408 0.499861889278741 0.499864954958181 26.645006904321 26.6448068505271 2458345.320918667 0.0261711670321705 77.2405003836847 14.7403548818239 -5.36098593542348 990752.13627266 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2056-Mar-21 02:44 < 00:01 Mars 0.0897463797171826 0.0897446381124259 0.0897481213607536 11.148575309284 11.1482891713418 2472078.613585120 0.0497033848406629 114.074985893974 20.4684920748356 48.8293950951954 455805.045426432 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2134-Feb-19 03:50 < 00:01 Earth 0.491055752976743 0.491054222615786 0.491057283337638 26.8076503574469 26.8074479509529 2500536.659472574 0.0580697994125794 75.7657638232723 19.2732497330397 -0.12234163048395 895260.270511497 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2136-Feb-15 15:34 < 00:01 Earth 0.409194025007658 0.4091923796305 0.409195670384568 24.377917046956 24.3776499377493 2501263.148814873 0.0626842687365663 80.5871500527613 18.7685461163889 0.300340612430437 690943.648960164 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2138-Feb-11 07:43 < 00:01 Earth 0.331759771938588 0.331758017409384 0.331761526467315 22.0786040418103 22.0782402770707 2501989.821802020 0.067716590515805 84.6027836596676 18.2604522820021 0.688536296812411 524408.964501634 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2140-Feb-07 15:16 < 00:01 Earth 0.253592469132942 0.253590631730748 0.253594306534194 19.7065471513262 19.7060139744047 2502716.135797333 0.0737529582383609 86.4835563151629 17.8847623654317 0.927122308032573 382886.664041715 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2142-Feb-02 20:20 < 00:01 Earth 0.175149412525689 0.175147524966995 0.17515130008254 17.3994862388486 17.3986119032546 2503442.346972521 0.0800989000222413 85.4877383136182 17.48989134775 1.28324832758235 259506.235459617 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2144-Jan-30 02:52 < 00:01 Earth 0.1051099952999 0.105108136023046 0.105111854573773 15.2815664526825 15.2799075380451 2504168.619476356 0.0864290972813222 79.6730864464545 17.1840624143056 1.80351996757036 160990.950407062 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2146-Jan-25 03:32 < 00:01 Earth 0.0425716529615123 0.0425700044663776 0.0425733014530664 13.4185565670399 13.4138914607584 2504894.647039467 0.0906917236426463 65.4368707027473 17.0295895273272 3.20940214120059 76362.9053542872 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2148-Jan-21 19:50 < 00:01 Moon 0.00187440258293463 0.00187389210660813 0.00187491307919997 12.4260132945772 12.4246061177501 2505621.326565910 0.0803650322430134 31.1515990313934 21.5095719638544 55.543190458668 11607.6840985709 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2148-Jan-22 03:23 < 00:01 Earth 0.00197994857155306 0.00197948235431109 0.00198041479471197 12.2954551064272 12.1855140677713 2505621.641305176 0.0821534678951092 22.5337179104498 16.4832100450116 71.6318897408223 12683.5784599062 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2150-Feb-06 02:43 00:03 Earth 0.228062731872975 0.227945125788411 0.2281803332791 19.0092981073284 19.0086834982458 2506367.612856297 2.69227200813196 5506.76713673964 12.2460744858747 1.66127945851136 69362.3568494412 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2152-Feb-18 04:26 00:04 Earth 0.454209351339212 0.453983033563881 0.454435667806903 25.7360782262285 25.735850288697 2507109.684973402 3.86877594898055 11218.1254916858 12.1853112186216 1.54105165750385 137204.46919782 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2162-Mar-16 20:17 00:37 Venus 0.142161509885253 0.141560367662853 0.142762023324816 6.82954986445809 6.82731286453223 2510789.345310271 36.9594469792512 21834.6600335604 16.5072525829463 13.7360951795895 168490.916319747 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2188-Sep-01 15:33 01:53 Venus 0.113562647856409 0.112955490244558 0.114190172942131 6.39908089921682 6.39609195868915 2520455.147953453 112.748496044893 40096.2208076574 19.0998717611166 71.6345380792163 444635.72139276 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2194-Aug-20 10:30 00:48 Earth 0.480501140059194 0.477770359465034 0.483232044980883 26.0700671675348 26.0698544626048 2522633.937353752 48.009239298502 136560.715306219 61.2021862738945 -6.50031133169898 122159.682354921 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2196-Aug-31 07:53 01:09 Earth 0.263859580613512 0.260885123374588 0.266833569216113 19.6515800603262 19.6510661969191 2523375.828258069 68.7160521699498 144389.339596284 57.8171843060651 -12.1113443299084 124495.502362288 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2198-Sep-14 15:36 02:01 Earth 0.073894943930689 0.0721811645567588 0.0756994614822841 13.2443382297663 13.2416154531433 2524120.150212374 121.376316224904 126767.489567661 51.0872733082511 -53.5937658832981 133150.39898357 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36
2200-Oct-18 06:03 08:19 Earth 0.150829327063607 0.149143565714496 0.152553942721081 9.27393397630189 9.27202892282037 2524883.751776502 499.017510035081 40044.2884437992 35.2082221328887 43.644568688766 282784.587389668 T 61 CATAB v2.0c-linF95 2014-Jun-10 16:36:48 2014-Jun-10 16:36

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