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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 110 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .40604549646348 1.9938e-07  
a 1.541404084377501 2.8485e-08 AU
q .9155238976856024 3.2016e-07 AU
i 24.52660731446851 1.2572e-05 deg
node 220.7579852678493 2.1789e-05 deg
peri 321.6974623616391 4.0824e-05 deg
M 263.3387149205901 0.00010714 deg
tp 2457188.182270579415
(2015-Jun-14.68227058)
0.00021297 JED
period 698.9935769329209
1.91
1.9376e-05
5.305e-08
d
yr
n .5150261917707829 1.4277e-08 deg/d
Q 2.167284271069399 4.0051e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      476  
   data-arc span      8381 days (22.95 yr)  
   first obs. used      1991-10-10  
   last obs. used      2014-09-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60759  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-20 06:47:44  

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 15.8 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 0.428496846681203 0.428494331534482 0.42849936182963 24.0427632221288 24.0425045898759 2418092.017342050 0.0351866863625694 128.518482381917 14.4835890228053 -21.5063471909633 1530718.76343238 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
1910-Apr-24 00:34 < 00:01 Earth 0.107628931147333 0.107625690778552 0.107632171529388 14.8273884963295 14.8257187783782 2418785.523881377 0.147860187418529 133.228780273753 32.3002151584696 18.5713534809605 156352.991200763 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
1931-May-07 08:21 00:01 Earth 0.0620493827210939 0.0620122845153208 0.0620864867371889 16.4808540766192 16.4782483460317 2426468.848196651 1.46838744648799 1776.99745957839 27.8282218460966 -28.2312716670379 130550.513469452 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
1933-Mar-01 14:35 00:02 Earth 0.437287640401761 0.437256914787589 0.437318368522971 15.9501115626018 15.9497295421357 2427133.107561926 1.51280038808242 2030.0553186159 21.6096025469062 35.765128744499 1450285.61224094 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
1952-May-23 20:46 < 00:01 Earth 0.316117318043618 0.31608718029951 0.316147455747027 21.405398072856 21.4050043009263 2434156.365139466 0.723968294076711 1464.26593742375 25.2411921803222 -11.3010144198428 326620.713752983 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
1954-Apr-12 23:19 00:01 Earth 0.212148153249923 0.212120689326838 0.212175617631766 14.6120386602142 14.61117910246 2434845.471259205 1.28890524753091 1176.96341903004 28.9979721943451 20.8738264716533 310522.056299609 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
1975-May-04 23:15 < 00:01 Earth 0.0372139299377988 0.0372067095522566 0.0372211522910196 16.051080013011 16.0466186976819 2442537.469061950 0.419468960325216 466.407908757124 25.5711676219465 -49.865748663582 136649.055556325 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
1977-Feb-24 06:07 < 00:01 Earth 0.453926226662168 0.453918430941959 0.453934022598953 16.0689660394599 16.06860074416 2443198.754622086 0.33805475618283 553.723270963122 17.9017891300436 38.977954426669 1961960.01269838 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
1996-May-27 17:14 < 00:01 Earth 0.379293639308101 0.379291568727925 0.379295709888155 22.8197649285026 22.8194570860148 2450231.218287802 0.0749750167362556 101.305659318778 25.9207547514073 -6.53910901547497 547799.572616415 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
1998-Jan-03 03:01 < 00:01 Earth 0.488794952457435 0.488794750350427 0.488795154552403 9.33260233636357 9.33201822389822 2450816.625647223 0.252375613376365 115.613502952962 28.9419194958902 77.0590202851192 1583438.78642692 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
1998-Apr-20 10:54 < 00:01 Earth 0.143810099566313 0.143807864562191 0.143812334577354 14.682270410456 14.6810084422426 2450923.954096461 0.104945649551662 96.908229006738 31.2157199510389 26.1116339907206 288965.607285794 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2019-May-16 09:49 < 00:01 Earth 0.186824382197331 0.186813174596489 0.186835589803827 18.666387969517 18.6656239096258 2458619.909010758 0.330238703163485 520.959655325642 26.3906317104144 -14.8540926039292 237095.133584301 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2021-Mar-28 03:06 < 00:01 Earth 0.325189320971781 0.325178694200875 0.325199947785653 15.2475608101782 15.2470234278746 2459301.629244107 0.518264434307358 519.680558815468 28.3875992253513 23.8468414464663 563415.845604107 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2042-May-03 07:21 < 00:01 Earth 0.0292076880379884 0.0292046970713746 0.0292106910251724 15.8225997601313 15.8168332045879 2467007.806437596 0.721586491144121 794.866895989781 27.6258564624566 -80.9540665618137 127505.25850549 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2044-Feb-20 13:36 00:01 Earth 0.467397442345726 0.467375357772691 0.467419528694549 16.2225903448189 16.2222389377224 2467666.066549661 1.08324042183273 1572.00203261381 19.6571296364989 37.1943094325802 1772383.64954299 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2063-May-29 22:18 00:03 Earth 0.402954922395338 0.402795743447849 0.403114101823641 23.3373921287803 23.3371087898798 2474704.429079911 3.35914776765715 7896.33327689156 24.0255325182025 -11.5913639635334 454728.979868261 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2065-Apr-22 23:29 00:07 Earth 0.115915066035228 0.1157506132314 0.116079557793588 14.824796308577 14.8232456847669 2475398.478633862 7.36811218393258 6875.63724905549 28.496348978789 20.2879617601702 168459.607553371 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2086-May-19 12:41 00:06 Earth 0.237840440925094 0.23761312930797 0.238067749076116 19.6654566943745 19.6648870170812 2483095.028236256 6.141792555835 10755.0205790686 25.1042157647065 -12.6433300329254 269667.371176454 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2088-Apr-04 10:52 00:10 Earth 0.275919216584872 0.275707395966739 0.276131054443298 14.9578939976563 14.9572483890222 2483780.952947964 9.99073575505015 9727.2197558399 27.7306335093899 22.6790679287567 460032.301851178 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2109-May-08 12:40 00:08 Earth 0.0700456274696689 0.0698425675068523 0.0702488107057515 16.5974817283434 16.5951897045834 2491484.028079729 7.77172790124467 9571.79505920157 26.6770292725525 -26.0403794842045 142941.232136739 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2111-Mar-10 21:19 00:08 Earth 0.420554793616906 0.420393066848556 0.420716561369144 16.1892216645317 16.1888303111879 2492155.388107703 7.53323344812014 9702.18894705927 21.8637448822375 31.8772619431778 1251502.87863908 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2130-Jun-05 10:03 < 00:01 Earth 0.498913611397387 0.498890637972198 0.498936584860762 25.6029870775166 25.6027784852821 2499181.918633256 0.43680028377746 1162.16136242738 23.9170116333867 -10.9342023306618 545557.08227555 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2132-May-02 06:54 00:02 Earth 0.0317200552129245 0.0317004699032104 0.0317396978878102 15.6050227194368 15.599638919165 2499878.787505398 1.78672933850738 1892.66753440274 27.8422219675291 65.668030759396 126181.363054917 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2134-Feb-14 23:47 00:02 Earth 0.486024720832757 0.485965061312731 0.486084395947531 16.5053093810144 16.5049772306771 2500532.491193597 2.41880854653653 4487.33207666131 18.9309726760378 39.4857424974299 2023841.86077263 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2153-May-26 10:42 00:11 Earth 0.334750844987639 0.334269048964615 0.335232636285184 21.7255270622932 21.7251606888252 2507572.946127238 11.2661550554104 23524.5344281154 24.4357825627793 -11.8582322770503 374458.670359983 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2155-Apr-17 12:37 00:23 Earth 0.183945153954845 0.183447297902432 0.184443173090217 14.6963727772164 14.6953871143157 2508264.025497096 22.7583677537452 20985.4142001804 28.61020661405 19.3085942625346 253207.192124789 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2176-May-13 20:00 00:26 Earth 0.144672814167515 0.143842782202154 0.145502928085308 17.8383026972314 17.8372702105292 2515961.332994130 26.3881251973762 38020.994939907 25.9030959577948 -15.4584789259961 188637.557588984 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2178-Mar-24 13:32 00:34 Earth 0.358030451350788 0.357285526471134 0.358775740221014 15.6883704105244 15.6878960362575 2516641.063587529 33.9067298641595 38848.837259841 25.1034852485311 26.962588889252 788443.548485375 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
2199-May-02 14:34 00:33 Earth 0.0346925312377421 0.0342222253374221 0.0351783874677769 15.5549167589103 15.5499784571807 2524350.106666832 33.4219317613348 35189.2295983563 27.6056611871589 57.1602466470912 128202.096952781 T 110 CATAB v2.0c-linF95 2014-Sep-20 06:47:47 2014-Sep-20 06:47
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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