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412976 (1987 WC)
Classification: Amor [NEO]          SPK-ID: 2412976
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2338572748775365 5.9935e-08  
a 1.362323440667113 5.5104e-09 au
q 1.043734193330913 8.1497e-08 au
i 15.84408075252353 1.0121e-05 deg
node 51.82889209112413 1.1816e-05 deg
peri 308.3368588457843 1.8737e-05 deg
M 329.0819270601811 1.593e-05 deg
tp 2459250.380257579893
(2021-Feb-04.88025758)
2.5879e-05 TDB
period 580.7895195704427
1.59
3.5238e-06
9.648e-09
d
yr
n .6198458957493919 3.7608e-09 deg/d
Q 1.680912688003314 6.7991e-09 au
  Orbit Determination Parameters
   # obs. used (total)      183  
   data-arc span      11838 days (32.41 yr)  
   first obs. used      1987-11-21  
   last obs. used      2020-04-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52113  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 12:59:39  

Additional Information
 Earth MOID = .115081 au 
 Jupiter MOID = 3.82085 au 
 T_jup = 4.777 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.89   n/a E2021B25  

412976 (1987 WC)          Discovered 1987-Nov-21 by Mueller, J. E. at Palomar
Reference: Last Updated: 2014-11-10

[ 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
1909-May-30 21:17 00:01 Earth 0.4453352791495 0.44532998484534 0.445340573686097 9.27953668009835 9.27889189639596 2418457.386737012 1.42070971109414 572.41292248846 12.1668535573582 -62.561028932944 2531923.87303516 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1917-Jun-24 08:40 00:02 Earth 0.340196288924469 0.340192458710767 0.340200119619704 7.67380253472644 7.67278182782876 2421403.861331240 1.96416098340719 668.336560518752 15.7426014429829 -73.4517527303006 1193278.96280337 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1917-Nov-05 05:41 < 00:01 Earth 0.225168232158296 0.225155653765116 0.225180810995588 12.5536594513977 12.5527167998142 2421537.736559859 0.437542655274672 801.523785418159 22.6470098406444 38.5267484232547 776301.542120791 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1925-Nov-04 03:03 < 00:01 Earth 0.166580230805569 0.166570999206232 0.166589465714536 8.43319609823761 8.43129919339811 2424458.627046305 0.480173522890012 1258.92360066741 16.0539613116058 -68.5581808401715 1216790.39557312 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1933-Dec-03 06:12 00:02 Earth 0.424809228838736 0.424800837980268 0.424817619784933 7.97852246392957 7.97773629235164 2427409.758347032 2.34637254621656 518.669141712358 48.4440247615885 36.4047147588518 690035.101467962 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1944-Jun-11 05:24 00:01 Earth 0.389149389234402 0.389146257292645 0.389152521312489 8.54438614284062 8.5435847683695 2431252.724949045 1.02008634146627 396.528164176673 12.919381276555 -66.8786896543276 1813784.75334644 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1944-Nov-09 00:46 < 00:01 Earth 0.371792825021046 0.371783856216454 0.371801793866046 16.1165252608489 16.116080582555 2431403.531607343 0.394595114103516 487.364219686205 26.9690793136261 23.454653361845 703163.754593699 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1952-Jul-15 01:22 00:02 Earth 0.310624652854542 0.310623817889005 0.310625487933119 6.18051372199312 6.17912568630873 2434208.557045685 2.45761207229707 352.619522984884 22.2993467104644 -84.2971646470698 472991.558745375 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1952-Nov-02 20:56 < 00:01 Earth 0.120241395700366 0.120239554515534 0.120243237664538 9.77268743646838 9.77041968878896 2434319.372320998 0.0945827265862809 498.032854109351 15.1607911357333 79.520318456701 975348.756797123 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1960-Nov-13 03:28 < 00:01 Earth 0.296687503658795 0.296681945099569 0.296693062236066 8.25141458277521 8.25032612060547 2437251.644411148 0.911942688283542 300.808199023371 44.2795314706672 -23.1256003227037 411872.478027293 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1961-Oct-14 06:02 < 00:01 Mars 0.086815870032666 0.0868112773263734 0.0868204627520017 5.87993434269717 5.8793734816125 2437586.751419870 0.136000632398417 235.106207622653 12.9396728325127 13.0829591422457 234686.225013803 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1971-May-30 22:34 < 00:01 Earth 0.450604835557817 0.450603023598511 0.450606647543865 9.34437856359395 9.34374574272849 2441102.440346676 0.484999184804069 196.7113418049 12.2364993777136 -62.8740604044387 2602888.48885506 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1979-Jun-23 08:58 < 00:01 Earth 0.347473406534308 0.347472288842067 0.347474524259236 7.7903689931774 7.78938461903906 2444047.873342963 0.526021860915454 183.46596769646 15.2547191121745 -72.9549016217991 1275652.82848117 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1979-Nov-06 12:10 < 00:01 Earth 0.244563076085869 0.244559578971856 0.24456657322549 13.0215274856405 13.0206907784721 2444184.006626659 0.159816644406117 215.086969240091 23.2727127588286 36.0773410553579 784565.066113942 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1982-Jun-21 23:24 < 00:01 Mars 0.040494029934195 0.0404929162831308 0.0404951437163088 6.37780962276461 6.37670100613484 2445142.475281565 0.143753235431787 131.20224706972 14.2600657918641 -65.6997273507959 378840.989626089 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1987-Nov-04 05:26 < 00:01 Earth 0.14846943972215 0.14846763942693 0.148471240200752 8.57355524108344 8.57146176809079 2447103.726611059 0.0899461402752215 278.358428571582 14.0674220572561 -71.399095646636 1284186.73970787 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
1995-Nov-30 06:29 < 00:01 Earth 0.405547682985194 0.405546126157506 0.405549239814289 8.05360238070583 8.05278654586911 2450051.770087572 0.415952978303855 90.8559265527424 47.0960017985174 37.4057605756295 858725.466554006 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2006-Jun-10 10:10 < 00:01 Earth 0.398164420684551 0.398164008841353 0.398164832529108 8.65290899746655 8.65213559210182 2453896.923715211 0.125232768909564 50.2466305324353 12.3605536854989 -70.3249151908794 2030082.00427054 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2006-Nov-10 14:32 < 00:01 Earth 0.395421625955577 0.395420747139554 0.395422504771937 16.70057910538 16.700175621996 2454050.105810296 0.115879235831356 49.5742148078523 26.3339261060637 33.4944285522291 1352559.9447143 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2014-Jul-13 04:43 < 00:01 Earth 0.313919403123093 0.313918989041485 0.313919817204736 6.34976636646213 6.34842951803244 2456851.696566011 0.302839452773008 31.343965926705 20.0362340085381 78.3220895640936 576965.83813008 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2014-Nov-03 17:33 < 00:01 Earth 0.124872966869044 0.124872703641484 0.124873230096895 10.0146776053454 10.0125467539706 2456965.231100624 0.0709431402737172 21.3330294488179 10.8179286256596 -66.1560040529501 1472686.64126105 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2022-Nov-12 04:42 < 00:01 Earth 0.283912404288751 0.283911603849097 0.283913204728954 8.26380958194817 8.2626738455808 2459895.695990338 0.138233592112887 56.1983726585669 34.5355930051335 -63.1672448038957 1037833.73286843 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2033-May-30 17:01 < 00:01 Earth 0.451939463684459 0.45193866946049 0.451940257912564 9.36539251103221 9.36476297483842 2463748.208861320 0.198717168111126 82.0446131110455 12.3658625140704 -62.3640944456924 2600524.96743188 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2041-Jun-23 21:30 < 00:01 Earth 0.347820180498734 0.347819329569764 0.347821031443758 7.73456105675091 7.73357056761276 2466694.396025802 0.394850138834468 133.6529106903 15.627861159142 -72.7159593595381 1242381.75584205 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2041-Nov-06 06:36 < 00:01 Earth 0.240400216415822 0.24039762516699 0.240402807678524 12.9399254954748 12.9390689309159 2466829.775304413 0.131597137829722 158.970667171102 23.4238426826338 36.0862054127454 773987.094275014 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2049-Nov-04 02:15 < 00:01 Earth 0.154677881255851 0.15467551635444 0.15468024642696 8.51795089881774 8.51592834273036 2469749.593779101 0.11122283343342 345.473635656212 14.9121808941388 -70.1858436048544 1243587.15961373 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2057-Dec-01 23:23 < 00:01 Earth 0.416549359216719 0.416546243527365 0.416552474915591 8.00900502851046 8.0082063187795 2472699.473991507 0.857396518988266 187.141747895996 47.8098686149126 35.2064960798216 728385.566255856 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2068-Jun-11 12:25 < 00:01 Earth 0.393745681560283 0.393743981557209 0.393747381601092 8.56827761722773 8.56748780647788 2476544.017368933 0.549553757617316 212.196621247268 13.0515860412401 -66.7069746308149 1814438.22046792 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2068-Nov-10 00:00 < 00:01 Earth 0.380136402187093 0.380131513477944 0.380141290906852 16.3236004488845 16.3231710482785 2476695.500181199 0.236650870102958 263.800783887635 27.4669972006836 22.5995658851173 697547.635780611 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2076-Jul-17 02:48 00:03 Earth 0.313902941580348 0.313902147347847 0.313903735872125 5.89527205796673 5.89383204579084 2479501.616682526 2.50940220094896 265.523382706368 22.652852918916 -83.0054106226366 365987.730016086 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2076-Nov-03 09:21 < 00:01 Earth 0.119462053386262 0.119460418666249 0.119463688536326 9.83714862072745 9.83488103765348 2479610.889527031 0.0910223791667763 373.079275121082 15.4521098938395 77.6025351274084 946875.379329721 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2084-Nov-12 18:55 < 00:01 Earth 0.293992556654823 0.293986672045636 0.293998441287974 8.27579320498668 8.27469800071346 2482542.288335501 0.935651257946861 322.547331444953 44.4217070845651 -24.7788230222432 426609.747315219 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2095-Apr-28 12:04 < 00:01 Mars 0.0827119846378105 0.0827061162738534 0.0827178530260845 5.88275590300194 5.88216749490126 2486361.003055688 0.161151198328405 301.074431910793 13.2372369059082 13.6114224004981 224400.29772328 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2095-Jun-01 05:34 < 00:01 Earth 0.449676410445348 0.449673502642172 0.449679318317487 9.3337239532611 9.33308910187982 2486394.731969588 0.772816427963037 314.165654802141 12.3646823555589 -62.6008787289319 2550667.57340623 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2103-Jun-26 02:51 00:01 Earth 0.348630009131752 0.34862752474677 0.348632493692117 7.69072598027489 7.68973215894587 2489340.618996062 1.22845620704329 412.208966373836 15.7648511457544 -72.6479017655553 1221669.48171534 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2103-Nov-07 22:59 < 00:01 Earth 0.239216409523136 0.239208270501995 0.239224548687014 12.907132975181 12.9062699844645 2489475.457296653 0.3112533078598 499.920486551111 23.4873199641052 35.772525904574 749295.710701888 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2111-Nov-05 15:39 < 00:01 Earth 0.149206372624415 0.149200363919314 0.149212383295276 8.56209005326568 8.56000413110273 2492395.152111636 0.224155221289234 906.104596063051 14.4713241912521 -70.7061051918663 1245917.42279177 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2116-Jan-05 11:59 < 00:01 Mars 0.0386446932453152 0.0386415737075679 0.0386478138246502 6.3483144081697 6.34714733570378 2493916.999611749 0.263182332117725 353.818345699409 14.4549971738206 -64.0123039513338 351610.625987565 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2119-Dec-01 23:12 00:02 Earth 0.407438680936736 0.407430775800057 0.407446586132821 8.05198174805827 8.05116953639372 2495343.466550512 2.14333685399456 465.28321085507 48.1624460533475 32.2792701071852 632637.282972636 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2130-Jun-12 13:41 00:01 Earth 0.398914229264954 0.398910019727509 0.398918439035028 8.63471867172451 8.6339450937586 2499189.070261974 1.35156415467909 525.110553685796 12.9799735403497 -66.4802872124925 1861221.25926255 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2130-Nov-12 04:56 < 00:01 Earth 0.39287665236379 0.392864199820026 0.392889104968353 16.6416128122153 16.6412052761571 2499341.705368853 0.54633484246926 667.172290392189 28.0769209008183 21.4747454589573 657219.807109942 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2138-Jul-17 00:10 00:05 Earth 0.316723480518259 0.316721591949163 0.316725369619218 6.02745375336416 6.02605787202924 2502145.506932880 5.05650647086363 672.534521757332 22.0823551931441 -82.2090001332545 442362.946244737 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2138-Nov-05 05:47 < 00:01 Earth 0.122722803279333 0.122717353876933 0.122728255281589 9.99655649950429 9.99438437932299 2502256.741139752 0.19065326693498 932.868092123651 16.145884364909 73.0920053435088 911430.487243513 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2146-Nov-13 11:38 00:02 Earth 0.286451623122029 0.286436929086066 0.286466317392043 8.29195118870313 8.29082934149345 2505186.984553509 2.13467269728998 839.171047999314 42.8136118284587 -29.2128788756753 474835.133361786 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2157-Jun-01 22:03 00:02 Earth 0.451604612250416 0.451597773657164 0.451611451234145 9.34722492370481 9.34659369613483 2509040.418748329 1.84750632212405 745.252505948645 12.3994477007709 -62.7857153309985 2573452.94627894 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2165-Jun-26 11:51 00:03 Earth 0.349218701016237 0.349212908210382 0.349224494839446 7.63847089306451 7.637471958973 2511986.993739355 3.01378785817109 984.73538690069 15.9235783528968 -72.9701401658415 1194546.87023432 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2165-Nov-07 17:51 < 00:01 Earth 0.235497793409802 0.235478232476701 0.235517355186333 12.8290671227115 12.8281851698664 2512121.243720949 0.702513083670096 1202.38369399303 23.4887078635869 35.7933690564833 737047.611789079 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2173-Nov-05 13:46 < 00:01 Earth 0.156042831243057 0.156027500640012 0.156058172460265 8.50698962946969 8.5049821834474 2515041.073348182 0.602858336629561 2169.33239860654 15.6008964843335 -69.3609123427945 1190256.66611521 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2181-Dec-04 08:13 00:05 Earth 0.421795503519016 0.421778672477099 0.421812334987136 7.9846372946024 7.98384611198796 2517991.842024224 4.81145856863676 1073.74372627839 47.4454248597299 38.6278436389735 731714.730115678 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2192-Jun-14 02:18 00:03 Earth 0.392906819622738 0.392899432668822 0.392914207374721 8.52209203042329 8.52129624340969 2521836.596170097 2.49677432176005 957.348208570565 13.2577687902621 -67.3860138483864 1768172.53301429 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2192-Nov-11 08:57 < 00:01 Earth 0.372622996623226 0.372600739300778 0.372645254178816 16.132095228992 16.1316519696552 2521986.873018776 0.96203493229608 1203.3331337955 27.6397128756761 22.7392770566196 663809.973701005 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
2200-Nov-05 20:51 < 00:01 Earth 0.115380048312763 0.115374863285422 0.115385241495377 9.71730242616262 9.71492564587458 2524902.368966615 0.235161169420854 1554.09385218323 14.9924245991356 80.4344926083755 955152.957099083 T 51 CATAB v2.0f-lin.ifort 2021-Apr-14 12:59:40 2021-Apr-14 12:59
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