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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 109 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4059662342781454 1.9979e-07  
a 1.541473586286845 2.909e-08 AU
q .9156873592227467 3.2104e-07 AU
i 24.5250882954076 1.2602e-05 deg
node 220.7597513578176 2.1942e-05 deg
peri 321.6970460278999 4.1418e-05 deg
M 160.3298006678864 0.00010647 deg
tp 2456489.174775656022
(2013-Jul-15.67477566)
0.00019841 JED
period 699.0408538958586
1.91
1.9788e-05
5.418e-08
d
yr
n .51499135993793 1.4578e-08 deg/d
Q 2.167259813350943 4.09e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      473  
   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      .60946  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 20:24:05  

Additional Information
 Earth MOID = .0285559 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 0.428496851514417 0.428494335476239 0.428499367554353 24.0427635089806 24.0425048767337 2418092.017341896 0.0353857987999484 128.584900412836 14.5583784618214 -21.527565207635 1524697.26950696 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
1909-Dec-27 05:54 < 00:01 Earth 0.499997732469998 0.499996799310461 0.499998665683141 10.3683250374947 10.3678110571834 2418667.745577450 0.397996690334476 197.292885216434 13.6127701823588 81.6372521910378 3702958.07650761 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
1910-Apr-24 00:34 < 00:01 Earth 0.107628894380635 0.107625584528966 0.107632204246875 14.8273887945778 14.8257190760897 2418785.523884572 0.151005446464324 136.172363098086 32.3312002482901 18.7006152673209 155758.923895184 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
1931-May-07 08:21 00:02 Earth 0.0620497315862611 0.0620119013846478 0.0620875678384068 16.4808598795421 16.4782541645238 2426468.848225166 1.49711585534597 1812.30188507852 27.9456049816911 -28.2456955831593 130062.199558912 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
1933-Mar-01 14:35 00:02 Earth 0.437287353940532 0.437256030978393 0.437318679507543 15.9501109105804 15.9497288898484 2427133.107662499 1.54306494331399 2069.38399393517 21.6989783127729 35.7552750207848 1443961.56809493 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
1952-May-23 20:46 < 00:01 Earth 0.316117593621103 0.316086873872707 0.316148313327513 21.4054043982578 21.4050106267877 2434156.365155707 0.737317548534696 1492.57450658417 25.3797331839415 -11.3149276568833 325197.697485668 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
1954-Apr-12 23:19 00:01 Earth 0.21214790356681 0.212119914635663 0.212175892972927 14.6120383166574 14.6111787578713 2434845.471288751 1.31371626670523 1199.2962433581 29.1346990954335 20.8475513816373 308676.33156284 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
1975-May-04 23:15 < 00:01 Earth 0.0372139879874404 0.0372066602141175 0.0372213177974735 16.0510813183589 16.0466200103528 2442537.469069111 0.425842027688231 474.001101326934 25.7614559980677 -49.930914865333 135766.949792701 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
1977-Feb-24 06:07 < 00:01 Earth 0.453926165333438 0.453918258155112 0.453934072734636 16.0689658868998 16.0686005915471 2443198.754646142 0.343663396770805 561.606497666062 17.9848770899973 38.9512887682474 1951745.65135501 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
1996-May-27 17:14 < 00:01 Earth 0.379293637948535 0.379291566496647 0.3792957093997 22.8197650675675 22.8194572250805 2450231.218286174 0.0750577791986833 101.336884562633 26.0004625141917 -6.53232459541727 547291.152359515 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
1998-Jan-03 03:01 < 00:01 Earth 0.488794949689926 0.488794739029292 0.488795160354779 9.33260326967602 9.33201915726578 2450816.625642928 0.253366712000457 115.686529060085 29.2577164900602 76.9784479339695 1565927.48073156 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
1998-Apr-20 10:54 < 00:01 Earth 0.143810109367823 0.143807861755184 0.143812356988013 14.6822704541924 14.6810084860689 2450923.954095080 0.105467732945548 97.4119351099681 31.2474099972283 26.0179229362703 287706.117733579 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2019-May-16 09:49 < 00:01 Earth 0.186824285762799 0.186812865128676 0.186835706402149 18.66638624162 18.6656221812637 2458619.909004263 0.336855229162118 530.787527342546 26.5158136798007 -14.8110996113881 235217.609422904 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2021-Mar-28 03:06 < 00:01 Earth 0.32518941333375 0.325178580151204 0.325200246561311 15.2475615715248 15.2470241894007 2459301.629229215 0.527830679261854 529.906701743326 28.4797198116292 23.8933472162994 562471.685662344 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2042-May-03 07:21 < 00:01 Earth 0.0292076610507141 0.029204604782992 0.0292107298095855 15.8225979782656 15.8168314167434 2467007.806425125 0.735312394262628 809.648688219022 27.7640978700588 -80.9183299095351 126857.587101927 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2044-Feb-20 13:36 00:01 Earth 0.467397629393073 0.467375123634034 0.467420136996194 16.22258952854 16.2222381215665 2467666.066455071 1.10298226626166 1602.07564339707 19.7286904792067 37.205080436011 1766385.54586864 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2063-May-29 22:18 00:03 Earth 0.402953604141907 0.402791509018775 0.403115699762709 23.3373610775633 23.3370777373589 2474704.429001175 3.42127475045859 8040.96911566892 24.1811258385832 -11.5888795413287 451704.741320912 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2065-Apr-22 23:29 00:08 Earth 0.115916428095492 0.115748962528259 0.116083934074333 14.8247896889131 14.8232390826319 2475398.478501391 7.503296100749 7001.78239023693 28.6386004259032 20.2923414455906 167659.219891294 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2086-May-19 12:40 00:06 Earth 0.237838560692795 0.237607082195467 0.238070035590916 19.6654181717094 19.6648484887965 2483095.028115172 6.25494712454422 10952.1041353007 25.257384124377 -12.6411530986617 267983.995699557 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2088-Apr-04 10:52 00:10 Earth 0.275920969709646 0.275705262136545 0.276136695172216 14.9579043637553 14.9572587596707 2483780.952707689 10.1736734123899 9905.90806238002 27.8719679211505 22.6822036629113 457762.26692549 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2109-May-08 12:40 00:08 Earth 0.0700439461271888 0.0698371610567386 0.0702508590076504 16.597455022366 16.5951629398956 2491484.027943821 7.91464802120726 9747.24778861676 26.8249004364802 -26.0380237201916 142137.746192611 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2111-Mar-10 21:18 00:08 Earth 0.420556133741668 0.420391434023373 0.420720875969337 16.1892324513525 16.1888410995164 2492155.387756342 7.67095564298247 9880.74727251254 21.9844766959439 31.8797234259335 1244720.04536134 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2130-Jun-05 10:03 < 00:01 Earth 0.498913804887224 0.49889038876075 0.498937221053514 25.602992100136 25.6027835080234 2499181.918643741 0.444622902249069 1184.56184488814 24.0652383980279 -10.948886026684 542830.717286453 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2132-May-02 06:54 00:02 Earth 0.03171988960705 0.0316999263715647 0.0317399123710867 15.6050268870333 15.5996430600868 2499878.787535746 1.8200011560309 1928.20580582509 27.9791375603999 65.653258313988 125548.509147231 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2134-Feb-14 23:48 00:02 Earth 0.486024228755516 0.485963472833332 0.486085000851793 16.5053088592907 16.5049767086066 2500532.491466751 2.46415739232054 4569.77093847712 18.9812346666244 39.4826144833067 2018346.11955541 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2153-May-26 10:43 00:11 Earth 0.334754826870019 0.334264125949545 0.335245522894323 21.7256168876304 21.7252505200352 2507572.946372848 11.4737318848057 23959.3920561369 24.5899671766024 -11.8591250650732 372143.005516997 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2155-Apr-17 12:37 00:23 Earth 0.183941039739975 0.183433986903832 0.184448261714724 14.6963721166996 14.6953864317075 2508264.025943690 23.1789155097912 21372.9429797207 28.7508733310328 19.3070603018509 251943.383546196 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2176-May-13 20:00 00:27 Earth 0.144679661311113 0.143834309722008 0.145525097914908 17.8384253907408 17.8373929600054 2515961.333474980 26.8743962822629 38722.9463336537 26.0526563635975 -15.4587682166205 187567.3118532 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2178-Mar-24 13:33 00:35 Earth 0.358024307270381 0.357265638589137 0.358783353445948 15.688310485398 15.6878361011782 2516641.064673290 34.5331520435358 39565.1724933776 25.2396903507458 26.9615210422067 784145.519108582 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
2199-May-02 14:34 00:34 Earth 0.0346885931673307 0.0342098601777647 0.0351834612932379 15.5549894384584 15.550050599096 2524350.107237159 34.0389094168089 35839.5045503546 27.7493612435952 57.1687000981735 127536.068299164 T 109 CATAB v2.0c-linF95 2014-Jun-09 20:24:07 2014-Jun-09 20:24
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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