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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 133 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .406045454568523 1.9612e-07  
a 1.541404109220523 2.2224e-08 AU
q .9155239770182862 3.1337e-07 AU
i 24.52660015645122 1.1459e-05 deg
node 220.7580025908236 1.5947e-05 deg
peri 321.6974823784658 3.3474e-05 deg
M 263.3386127876025 7.9752e-05 deg
tp 2457188.182473423167
(2015-Jun-14.68247342)
0.00015858 JED
period 698.9935938315848
1.91
1.5117e-05
4.139e-08
d
yr
n .5150261793196609 1.1139e-08 deg/d
Q 2.167284241422759 3.1249e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      567  
   data-arc span      8447 days (23.13 yr)  
   first obs. used      1991-10-10  
   last obs. used      2014-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59594  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-26 05:23:00  

Additional Information
 Earth MOID = .0275607 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 15.7 mag n/a MPO313520  
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 0.428496887929947 0.428494387066747 0.428499388794656 24.0427588145647 24.0425001822893 2418092.017368552 0.0291658582112206 127.31925982999 11.1024959213047 -21.0083190887454 1925239.21439088 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
1910-Apr-24 00:34 < 00:01 Earth 0.107629918012104 0.107627636956508 0.107632199072259 14.8273788188534 14.8257091151227 2418785.523800614 0.105050744434963 92.8352923341894 31.8812201769137 16.2114805695021 174313.257930933 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
1931-May-07 08:20 00:01 Earth 0.0620382453744873 0.0620102083117523 0.0620662856549958 16.4806679551613 16.4780617273087 2426468.847291936 1.11566676477136 1339.10964885469 24.8267424549407 -27.9170120049719 144834.486881767 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
1933-Mar-01 14:30 00:01 Earth 0.437296753979776 0.437273374205546 0.437320135215086 15.9501293519793 15.949747339901 2427133.104339694 1.1359196924576 1547.30360158459 19.2866798563734 35.9878980687886 1633818.32589641 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
1952-May-23 20:45 < 00:01 Earth 0.31610836731556 0.316085379748853 0.316131354855342 21.4051926699971 21.4047988831387 2434156.364613417 0.563723123074196 1116.49255426216 21.5802322957354 -11.035061216791 373575.719033936 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
1954-Apr-12 23:17 < 00:01 Earth 0.212156263599455 0.212135226259898 0.212177301229583 14.6120483286753 14.6111888043501 2434845.470316675 0.985537138995015 904.577564503764 24.9638338265607 21.4591279754588 370506.267730996 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
1975-May-04 23:15 < 00:01 Earth 0.0372120462090021 0.0372060562689962 0.0372180373920774 16.0510364440281 16.0465748907154 2442537.468847686 0.347432797208131 377.745920757454 21.39666544195 -48.6882295186426 160459.327901706 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
1977-Feb-24 06:05 < 00:01 Earth 0.453928166148578 0.453921622460326 0.453934709989039 16.0689650144298 16.0685997206674 2443198.753804137 0.271349786238647 465.364379945646 16.3974341376135 39.4276980223399 2162941.80286978 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
1996-May-27 17:14 < 00:01 Earth 0.379293755474653 0.379291701997348 0.379295808951849 22.8197629425263 22.8194551001061 2450231.218318802 0.071730039670013 100.55160942609 23.0792036987805 -6.11215474357923 556239.236672671 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
1998-Jan-03 03:01 < 00:01 Earth 0.488795025327963 0.488794945374157 0.488795105262779 9.33258625578196 9.33200214239717 2450816.625728018 0.243506139630219 114.863612162333 24.9718003306202 77.6433600958626 1838430.27491218 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
1998-Apr-20 10:54 < 00:01 Earth 0.143809701067586 0.143807634563176 0.143811767578562 14.6822678425916 14.6810058706604 2450923.954148973 0.0951659534288176 89.8396963094158 30.9355218634903 27.1140016519109 304091.642461941 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2019-May-16 09:49 < 00:01 Earth 0.186827754141331 0.186819207384224 0.18683630090549 18.666447906032 18.6656838623846 2458619.909258116 0.242788715152023 398.406821221685 23.3966927738558 -15.6987430026981 283267.650527396 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2021-Mar-28 03:07 < 00:01 Earth 0.325186077826653 0.325178049929689 0.325194105742567 15.2475327261898 15.2469953375369 2459301.629777893 0.399569282315815 389.734166999367 25.0799890451267 22.6388233863314 609693.818935234 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2042-May-03 07:22 < 00:01 Earth 0.0292086458693068 0.0292065035196888 0.0292107952130519 15.822661722343 15.8168953785247 2467007.806899996 0.549143792578863 613.335650167533 24.2431511915304 -81.6942908195681 145588.781529388 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2044-Feb-20 13:41 < 00:01 Earth 0.467390771323311 0.467373917853065 0.467407625826495 16.2226176354758 16.2222662239549 2467666.069905965 0.843165298852628 1198.03936821684 17.95792677388 36.955933279425 1929528.54928327 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2063-May-29 22:22 00:03 Earth 0.403001636530377 0.402878099359806 0.40312517399955 23.3384925577573 23.3382092650587 2474704.431892542 2.5957571637518 6128.50528582168 20.0074134572109 -11.6333941956452 548083.768537978 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2065-Apr-22 23:36 00:06 Earth 0.115866796042487 0.115739169460152 0.115994445891772 14.8250296901571 14.8234784447482 2475398.483351043 5.71306417112873 5333.02782283212 24.6786032610612 20.195354295801 193591.70164726 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2086-May-19 12:47 00:05 Earth 0.237907113722708 0.237730750822621 0.238083474587607 19.6668221294319 19.6662526513332 2483095.032571040 4.75377842862652 8345.45417935278 21.4641351682729 -12.6831450111063 316475.537233825 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2088-Apr-04 11:05 00:08 Earth 0.275857043987936 0.275692767550681 0.276021330659955 14.9575257569408 14.9568799868978 2483780.961509495 7.75385264414646 7540.15813834453 23.3921257707238 22.6076924252814 543601.999920058 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2109-May-08 12:47 00:06 Earth 0.0701051659643081 0.0699476654194205 0.0702627409011524 16.5984269340928 16.5961369874509 2491484.032899629 6.01969934730645 7426.27820662882 23.2108773067302 -26.0789496450935 164657.433681866 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2111-Mar-10 21:37 00:06 Earth 0.420507312832263 0.420381978066971 0.420632672132461 16.188834475593 16.1884430686984 2492155.400509117 5.85118151464292 7514.92621747883 18.4899895188893 31.8206297419892 1477327.35709234 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2130-Jun-05 10:02 < 00:01 Earth 0.498906661051956 0.49888923147715 0.498924090648855 25.6028078122225 25.6025992156216 2499181.918250220 0.342203967291061 881.853967090208 19.8093909724842 -10.6842635502961 644686.279198278 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2132-May-02 06:52 00:01 Earth 0.0317259820524204 0.0317111114855598 0.0317408865606236 15.6048732521736 15.599490406266 2499878.786422335 1.37806846173524 1452.88499957207 24.4307573233453 65.9727548522536 144172.889025591 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2134-Feb-14 23:33 00:02 Earth 0.486042205698762 0.485996005034849 0.486088415704312 16.5053254655953 16.5049933275305 2500532.481448480 1.85696397630777 3475.49312369221 17.8600674488907 39.5504363278661 2148223.52234705 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2153-May-26 10:30 00:09 Earth 0.334608889721069 0.334236663135343 0.334981113423688 21.722324640191 21.7219580572539 2507572.937409524 8.71706276133564 18173.5167527807 20.6064806326128 -11.842609889105 443266.527298064 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2155-Apr-17 12:14 00:18 Earth 0.184091820590368 0.18370712070587 0.184476618110419 14.6963958264431 14.6954109503948 2508264.009580809 17.5857763975323 16219.0112818957 24.5370805823127 19.3433471308654 295987.492841712 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2176-May-13 19:35 00:20 Earth 0.144428544274191 0.14378692293793 0.145070214786491 17.8339260062141 17.8328915194019 2515961.315865862 20.4166705538989 29386.7863535633 22.4287990770213 -15.4592853205906 217486.099698061 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2178-Mar-24 12:36 00:26 Earth 0.358249610874887 0.357673755669924 0.358825684508992 15.6905058374708 15.6900318179304 2516641.024815838 26.197892213861 30045.0342655311 20.9192697039548 26.9918042193429 947717.748419118 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
2199-May-02 14:04 00:26 Earth 0.0348336991920079 0.0344659113552588 0.0352106629592487 15.5523242624059 15.5474051568176 2524350.086326487 25.8291362341779 27177.4819616089 24.0587840150231 56.8476168316606 147170.248778834 T 133 CATAB v2.0c-linF95 2014-Nov-26 05:23:04 2014-Nov-26 05:23
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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