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12538 (1998 OH)
Classification: Apollo [NEO, PHA]          SPK-ID: 2012538
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 108 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .405966325694619 1.983e-07  
a 1.541473591291379 2.6433e-08 AU
q .9156872212795288 3.1624e-07 AU
i 24.52508687366237 1.3351e-05 deg
node 220.7597707103368 2.3464e-05 deg
peri 321.6970519374231 4.0525e-05 deg
M 160.3297563151487 9.9253e-05 deg
tp 2456489.174860263170
(2013-Jul-15.67486026)
0.00018538 JED
period 699.0408573001076
1.91
1.7981e-05
4.923e-08
d
yr
n .5149913574299809 1.3247e-08 deg/d
Q 2.167259961303229 3.7164e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      474  
   data-arc span      7789 days (21.33 yr)  
   first obs. used      1991-10-10  
   last obs. used      2013-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61087  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jan-22 02:56:33  

Additional Information
 Earth MOID = .0285561 AU 
 T_jup = 4.281 
[ 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 15.8 mag n/a MPO253452  
SMASSII spectral type spec_B S:   n/a Binzel et al. (2004) Icarus 170, 259-294 SMASSIR data only, classification consistent with specified type, but uncertain

12538 (1998 OH)          Discovered 1998-Jul-19 by JPL/GEODSS NEAT at Haleakala (566)
Reference: 19991123/Numbers.arcLast Updated: 2004-04-19

[ 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
1908-May-30 12:25 < 00:01 Earth 0.428496341926931 0.428493604118096 0.428499079737708 24.0427534582012 24.0424948255386 2418092.017352526 0.0364198752727518 140.161621679396 15.7550472658329 -21.1063000589941 1384130.26724446 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
1909-Dec-27 05:54 < 00:01 Earth 0.499997549282461 0.499996656020904 0.499998442586215 10.3683193313705 10.367805350588 2418667.745642971 0.367125795155035 181.164160568994 14.7677993613565 81.5585962735149 3412719.58840481 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
1910-Apr-24 00:34 < 00:01 Earth 0.107629629311264 0.107626204222508 0.107633054411332 14.8273863740702 14.8257166667115 2418785.523838315 0.154408557136707 139.148168217324 32.6306010223022 15.5870471097646 138323.099232993 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
1931-May-07 08:21 00:01 Earth 0.0620469022465339 0.0620123424766225 0.0620814670955226 16.4808144205464 16.4782085795092 2426468.848016279 1.36805181135881 1656.5151235894 31.2962046316126 -28.3084080452209 116392.883919695 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
1933-Mar-01 14:34 00:01 Earth 0.437289561619982 0.437260966667551 0.437318158742221 15.9501118514556 15.9497298326749 2427133.106825942 1.41108125259041 1888.76378270193 23.8004798580679 35.7233302785934 1315513.99258664 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
1952-May-23 20:46 < 00:01 Earth 0.316115500545871 0.316087455942094 0.316143545115628 21.4053595285773 21.4049657536745 2434156.365066611 0.673066770340943 1362.69639170894 28.0650802118582 -11.3691083460415 295950.414396509 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
1954-Apr-12 23:18 00:01 Earth 0.212149730504038 0.212124187199926 0.21217527420056 14.6120428982943 14.6111833471801 2434845.471086370 1.19974886937427 1094.30096723584 32.6730671594189 20.796906300734 274899.685261014 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
1975-May-04 23:15 < 00:01 Earth 0.0372139039505014 0.0372071764174904 0.0372206331775652 16.0510788727475 16.0466175539855 2442537.469073977 0.391752506612549 433.947578243491 28.9131446695616 -49.8499644232514 120887.866660931 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
1977-Feb-24 06:07 < 00:01 Earth 0.453926188159478 0.453918904527722 0.453933471979141 16.0689612688747 16.0685959734353 2443198.754563143 0.315952970897873 516.662278641866 19.5676335814649 38.959366669687 1794748.05578409 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
1996-May-27 17:14 < 00:01 Earth 0.379293973780788 0.379291601102197 0.379296346459118 22.8197749567822 22.8194671147012 2450231.218347566 0.086304768561107 115.990080302385 27.0723801526518 -6.3139193304205 483416.57478453 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
1998-Jan-03 03:01 < 00:01 Earth 0.488795161813514 0.488794937868222 0.488795385745371 9.33262647643718 9.332042365733 2450816.625529412 0.249235685653034 123.262185570792 29.6253215484045 79.9290309397315 1561615.78813736 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
1998-Apr-20 10:54 < 00:01 Earth 0.143809702102034 0.143807193237638 0.143812210977987 14.6822734930488 14.6810115216125 2450923.954156923 0.118192078795761 110.419825539421 31.4061854232963 28.0985554875222 291021.273626211 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2019-May-16 09:49 < 00:01 Earth 0.186825290355648 0.186814835020256 0.186835745693727 18.6664070053475 18.6656429499497 2458619.909106392 0.311601366466118 485.493245199556 29.6699860922469 -14.574798698891 208877.253368691 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2021-Mar-28 03:06 < 00:01 Earth 0.325188406273354 0.32517847575912 0.325198336827409 15.2475546128131 15.2470172287796 2459301.629388168 0.481367606293628 486.518787507687 31.761807728602 24.2011333698817 512061.898639708 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2042-May-03 07:21 < 00:01 Earth 0.0292080362093129 0.0292051923706697 0.0292108901081499 15.8226154831926 15.8168490021337 2467007.806559242 0.669164974007312 735.997099620857 31.3496769489782 -80.8187809795987 112319.448717989 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2044-Feb-20 13:37 00:01 Earth 0.467395915454585 0.4673754301993 0.467416402237107 16.2225902275956 16.2222388193486 2467666.067221426 1.00192470663244 1458.32782251918 21.6070173163398 37.2355399336247 1614049.13271096 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2063-May-29 22:19 00:03 Earth 0.402964111399571 0.402816876182408 0.403111347025136 23.3376118710666 23.3373285412952 2474704.429668827 3.10847551457777 7303.75921633472 26.7326365081197 -11.582299532562 408395.286400291 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2065-Apr-22 23:31 00:07 Earth 0.115905567612615 0.11575345292056 0.116057715681313 14.8248449804185 14.8232942346205 2475398.479583121 6.81539261845677 6360.22777678954 32.3670264692441 20.3022067295894 148406.619943174 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2086-May-19 12:42 00:06 Earth 0.237853547862685 0.2376432997598 0.238063792987025 19.6657278581424 19.6651582200965 2483095.029120849 5.68184509031961 9947.54289100684 28.2150746845355 -12.6356682924947 239812.224128556 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2088-Apr-04 10:55 00:09 Earth 0.275906941788825 0.275711008678457 0.27610288967603 14.9578233994654 14.9571777590608 2483780.954641105 9.24003931085266 8997.84869579402 31.2988206174338 22.6873270805596 407713.294357825 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2109-May-08 12:42 00:07 Earth 0.0700573673714117 0.069869534260971 0.07024530578792 16.5976699255751 16.5953783119167 2491484.029052391 7.18869749862317 8852.93382073219 30.2522933643492 -26.0273598187825 126012.120115426 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2111-Mar-10 21:22 00:07 Earth 0.420545365115193 0.420395753842985 0.420695011462947 16.1891436825979 16.1887523185947 2492155.390534755 6.96668756852417 8975.39121497035 24.3638875836757 31.8832101193785 1123241.64627561 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2127-Jul-29 22:48 < 00:01 Eunom 0.0420605622955369 0.0420581910144118 0.0420629336986938 9.78081120429838 9.78081117017564 2498140.449725785 0.0940859009091738 192.92694081687 79.405556888167 60.1205567702247 70589.1197781083 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2130-Jun-05 10:03 < 00:01 Earth 0.498912009709016 0.498890730184168 0.49893328926699 25.6029495384547 25.6027409452447 2499181.918581743 0.403436235828741 1076.56351152761 26.4485520897256 -11.0121888696337 497941.330654163 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2132-May-02 06:54 00:02 Earth 0.0317214491609975 0.0317032796751149 0.0317396676763668 15.6049936712071 15.5996100975338 2499878.787298064 1.65289812181455 1751.24293242978 31.6026752391448 65.6073381315373 111119.518236402 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2134-Feb-14 23:44 00:02 Earth 0.486028150409782 0.485973010371472 0.486083303772543 16.5053059790142 16.5049738309522 2500532.489160250 2.23797738522692 4147.35899749204 20.6889178032514 39.4773498858578 1851568.58532292 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2153-May-26 10:40 00:10 Earth 0.334722374086473 0.334276893771165 0.335167850373493 21.7248878059959 21.7245213905829 2507572.944413094 10.4161126507506 21751.3328020805 27.3065164855759 -11.8617194407173 335160.334879255 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2155-Apr-17 12:32 00:21 Earth 0.183974519387169 0.183514197503502 0.184434980564669 14.6963798192814 14.6953943141866 2508264.022323932 21.0431343434046 19402.9636519502 32.4295413596647 19.30474199785 223379.811578516 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2176-May-13 19:55 00:24 Earth 0.144624074199103 0.143856648755897 0.145391570003889 17.8374316608972 17.8363987757869 2515961.329604630 24.399023733643 35152.965238614 29.2769415042599 -15.4636868428242 166895.72409642 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2178-Mar-24 13:20 00:31 Earth 0.358074103112511 0.357385400469694 0.358763116961425 15.688796749426 15.6883224458794 2516641.055854122 31.3485993836623 35918.5940809541 28.1770137810936 26.9634182711823 702553.027985837 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
2199-May-02 14:28 00:31 Earth 0.0347206853116642 0.0342845672220175 0.0351700597478739 15.5544025929483 15.5494681330309 2524350.102637160 30.8959670791002 32527.4054050344 31.3704359666415 57.0917297154791 112819.583438895 T 108 CATAB v2.0c-linF95 2014-Jan-22 02:56:51 2014-Jan-22 02:56
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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