+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   418849 (2008 WM64) Classification: Apollo [NEO, PHA]          SPK-ID: 2418849 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 76 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1064507702112606 5.3966e-08   a 1.00546001977064 4.3037e-10 au q .8984280262494263 5.4232e-08 au i 33.52735567677117 1.3055e-05 deg node 91.44813644943147 1.1444e-06 deg peri 256.6124613884543 3.2306e-06 deg M 78.07298546039173 9.2954e-06 deg tp 2459120.637312185033 (2020-Sep-28.13731219) 9.4835e-06 TDB period 368.2524428116554 1.01 2.3643e-07 6.473e-10 d yr n .9775902564321177 6.2766e-10 deg/d Q 1.112492013291855 4.7618e-10 au   Orbit Determination Parameters    # obs. used (total)      305      # delay obs. used      3      # Doppler obs. used      3      data-arc span      4436 days (12.15 yr)      first obs. used      2008-11-24      last obs. used      2021-01-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .37975      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 20:38:38   Additional Information  Earth MOID = .0348616 au   Jupiter MOID = 4.09537 au   T_jup = 5.904  [ hide covariance matrix ] Orbital Elements at Epoch 2458117.5 (2017-Dec-30.0) TDB Reference: JPL 76 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1067871969928346 5.3882e-08   q .8974931559854449 5.3985e-08 au tp 2458016.379989880002 (2017-Sep-19.87998988) 9.0142e-06 TDB node 91.4651255525204 1.137e-06 deg peri 256.3863115834487 3.307e-06 deg i 33.53040388042005 1.3057e-05 deg   Orbit Determination Parameters    # obs. used (total)      305      # delay obs. used      3      # Doppler obs. used      3      data-arc span      4436 days (12.15 yr)      first obs. used      2008-11-24      last obs. used      2021-01-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .37975      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 20:38:38   Additional Information  Jupiter MOID = 4.09537 au   T_jup = 5.904  Orbit Covariance (6×6)   e q tp node peri i e 2.903318207370269E-15 -2.908728566282668E-15 4.354731061132771E-13 2.45987558518888E-14 6.356740387611711E-14 1.806757862840757E-13 q -2.908728566282668E-15 2.914399558121753E-15 -4.345123479217782E-13 -2.428197637885975E-14 -6.228634276120048E-14 -1.763507283693364E-13 tp 4.354731061132771E-13 -4.345123479217782E-13 8.125658948158322E-11 7.35423085777328E-12 2.15999501741453E-11 6.233155755702612E-11 node 2.45987558518888E-14 -2.428197637885975E-14 7.35423085777328E-12 1.292672525107622E-12 3.007125417848722E-12 6.101620173186426E-12 peri 6.356740387611711E-14 -6.228634276120048E-14 2.15999501741453E-11 3.007125417848722E-12 1.093631691088523E-11 3.43489812784665E-11 i 1.806757862840757E-13 -1.763507283693364E-13 6.233155755702612E-11 6.101620173186426E-12 3.43489812784665E-11 1.704769788251919E-10 [ 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 20.6   n/a MPO434525   rotation period rot_per 2.4055 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Rowe, B. (2018) Minor Planet Bull. 45, 292-294.] [Warner, B.D. (2018) Minor Planet Bull. 45, 138-147.] 418849 (2008 WM64)          Discovered 2008-Nov-24 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2015-01-07 [ 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 1900-Jul-07 06:26 < 00:01 Earth 0.33508367976365 0.33508216214098 0.335085197439175 18.4855083399268 18.4850781772402 2415207.767767908 0.11074231217091 225.364974556754 11.3592757443126 -70.5841988759036 3053323.4671018 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1900-Dec-21 01:39 < 00:01 Earth 0.0687856233971906 0.0687846472598329 0.0687865995438112 17.2294144771303 17.2271660827116 2415374.568533271 0.0256422069277052 62.8850297407845 0.977163535605062 -39.2860544420564 5477833.95711324 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1901-Jul-09 15:49 < 00:01 Earth 0.379128321460498 0.37912684929641 0.379129793688938 18.9880060947196 18.987635967522 2415575.158992892 0.10895542333895 266.981594745693 20.64069856821 -74.6527192949011 2102000.46749349 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1901-Dec-22 02:37 < 00:01 Earth 0.0377441729765994 0.0377437475179665 0.0377445984699916 17.3981408990454 17.394082915795 2415740.608886011 0.0273060150813306 60.9674262546221 0.719551527063055 -69.6451342427199 15258842.6082149 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1902-Jul-11 23:33 < 00:01 Earth 0.421237800679547 0.421236344474278 0.421239256922697 19.5491637268383 19.5488401626635 2415942.481172491 0.107844475924545 231.330663167245 30.5971185211094 -73.3096465938832 1641431.9617519 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1902-Dec-23 04:45 < 00:01 Earth 0.0446406125847473 0.0446398956373721 0.0446413295587563 17.6615757919952 17.6581959661833 2416106.697872275 0.0311719192864068 65.100655921704 1.06947135769151 56.7016305341642 5484960.12751284 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1903-Jul-14 05:23 < 00:01 Earth 0.464487413590087 0.464485890253334 0.464488936944743 20.161120808527 20.1608362793557 2416309.724329878 0.111308257149461 185.165553384813 39.8068340918951 -69.0369876470977 1395167.64817557 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1903-Dec-24 09:21 < 00:01 Earth 0.0820783406474961 0.0820772572441473 0.0820794240624763 18.0454076156159 18.0436085842248 2416472.889551970 0.0360153293559067 72.7912510559324 2.65951215536816 42.1167201422873 2622352.86256633 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1904-Dec-24 17:22 < 00:01 Earth 0.127877698270918 0.127876511439914 0.127878885111736 18.541590169485 18.5404663831939 2416839.223302172 0.0404288427394173 81.5524676835806 5.58495637291198 43.6015464429742 1995459.2940535 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1905-Dec-26 03:16 < 00:01 Earth 0.176977101611684 0.176975869041071 0.17697833419114 19.1803215845554 19.1795366231919 2417205.636101554 0.04419513002743 88.0403884577763 8.86583659286293 46.0247000074457 1828071.74770072 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1906-Dec-27 16:20 < 00:01 Earth 0.227629898019683 0.227628643323905 0.227631152722409 19.9224365318784 19.9218489789364 2417572.180739323 0.047958367610954 89.4211870492943 11.9133272679942 46.1276192449135 1769536.6633031 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1907-Dec-29 06:40 < 00:01 Earth 0.27923349897712 0.279232233469247 0.279234764489866 20.7677676028059 20.7673081299843 2417938.777823057 0.0508000086155737 86.910513998014 14.2688688563608 44.1912233742757 1771818.04252732 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1908-Dec-29 23:21 < 00:01 Earth 0.331844998373927 0.331843730514487 0.331846266236613 21.7304418004933 21.7300723023872 2418305.473120310 0.0541220412315216 82.7574423464536 16.0200088535157 41.1261209363371 1798941.74894539 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1909-Dec-31 17:58 < 00:01 Earth 0.384688113888902 0.384686849939485 0.384689377840419 22.7468524628874 22.7465479643681 2418672.248445587 0.0562433616221339 78.4183653959694 17.3842583101994 37.6019715596497 1823834.6498308 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1911-Jan-02 13:23 < 00:01 Earth 0.437804218767538 0.437802962821469 0.437805474715026 23.8685143917571 23.8682594098615 2419039.057421946 0.0588143612215752 74.8640707436898 18.1114919243725 34.3777348354843 1891274.67596999 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 1912-Jan-04 11:30 < 00:01 Earth 0.491013325411069 0.491012082128642 0.491014568694445 25.0255731073743 25.025356268608 2419405.979328869 0.0606086560021492 71.5408608242543 18.8158975453778 31.1460850657339 1938278.45557082 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2000-May-31 23:34 < 00:01 Earth 0.455392893625562 0.455392224084782 0.455393563166393 24.127637782768 24.1273952817949 2451696.482277500 0.0408580078864664 34.03250180441 7.28056173439892 -11.4443330280626 2753650.92984373 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2001-Jun-03 15:37 < 00:01 Earth 0.403000954231339 0.403000295585051 0.403001612877672 23.0361220349799 23.0358350232693 2452064.150839419 0.0401113171470365 33.5557805530213 6.81216446223372 -12.0785319979673 2641748.81823568 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2002-Jun-06 08:52 < 00:01 Earth 0.350564639515592 0.350563993318158 0.350565285713085 22.0339058246116 22.0335608746034 2452431.869716123 0.0397124448981922 33.0100110593344 6.31526377901395 -12.77555943451 2528664.74042288 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2003-Jun-09 01:08 < 00:01 Earth 0.298295425369362 0.298294794452834 0.298296056285959 21.076799865032 21.076376060635 2452799.546875870 0.0388847034592582 32.3944403618528 5.70408570983045 -14.0103846040592 2500589.02087546 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2004-Jun-10 17:02 < 00:01 Earth 0.246992430847174 0.2469918188176 0.24699304287686 20.2372686433217 20.2367355754165 2453167.209479855 0.0385044135348581 31.6591372683777 5.04653053393956 -15.6262264008982 2522873.49660338 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2005-Jun-13 08:25 < 00:01 Earth 0.196593420191398 0.196592832127798 0.196594008255176 19.4753542467383 19.4746583163959 2453534.850410232 0.0376624460697726 30.862937029821 4.26072619225126 -18.350410959769 2734196.87645074 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2006-Jun-15 22:16 < 00:01 Earth 0.147757041075349 0.147756488224697 0.147757593926355 18.832843878521 18.8318863332718 2453902.427738158 0.0371195936259288 29.8859134110336 3.38333726863237 -22.8680101599985 3263877.82464006 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2007-Jun-18 11:15 < 00:01 Earth 0.101944758313502 0.101944266881367 0.101945249746512 18.3020449018467 18.3006167815742 2454269.969068309 0.0361297148820419 28.7299806952122 2.37165634816607 -31.584437849663 4808438.98591897 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2007-Dec-18 09:57 < 00:01 Earth 0.475221983912019 0.475221859277255 0.475222108546783 19.9006790734035 19.9003973317807 2454452.914912518 0.0392502113471674 8.52397497600071 5.71309842562137 67.253323174639 8362544.46082893 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2008-Jun-19 21:43 < 00:01 Earth 0.0629832347162141 0.0629828929019968 0.0629835765333063 17.8877142515255 17.8853490875289 2454637.404878237 0.0350911317432406 27.2604861530052 1.24700195038311 -51.3735523363718 12567628.5848535 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2008-Dec-17 14:53 < 00:01 Earth 0.430824204877362 0.430824088172661 0.430824321582063 19.3331406245405 19.3328207251263 2454818.120133454 0.0325633174569191 8.13125574653116 4.98773615427914 62.1734689842859 8752636.15188711 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2009-Jun-22 05:55 < 00:01 Earth 0.0447979361597857 0.0447978650617298 0.0447980072637265 17.5999433744378 17.5965636228487 2455004.746474533 0.0341682859422688 25.9437372068165 0.299501937780847 82.173037677922 8144525.26749083 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2009-Dec-18 00:51 < 00:01 Earth 0.386941586638215 0.386941479352965 0.386941693923465 18.8092349478541 18.8088688475885 2455183.535331720 0.0265923044784053 8.09036373351015 4.5192356037712 64.7497644640259 8688795.22961747 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2010-Jun-24 13:38 < 00:01 Earth 0.0636733095821489 0.0636728791312671 0.0636737400346666 17.3954675545305 17.3930618135933 2455372.068295416 0.0365531150697195 26.8526257498537 1.61133116162543 37.0092135727182 2587606.16564389 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2010-Dec-18 12:11 < 00:01 Earth 0.342936412252384 0.342936320896733 0.342936503608035 18.3262124761654 18.3257885101331 2455549.007291903 0.0212964206977177 7.40638028320989 4.06998803352106 70.695401063406 8439238.27155305 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2011-Jun-26 22:29 < 00:01 Earth 0.101533838936944 0.101533307705555 0.10153437016857 17.3040279626718 17.3025113545625 2455739.437123606 0.0387279920033141 27.6064534794996 3.47017600984445 16.4832567748216 1180350.64526563 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2011-Dec-19 03:20 < 00:01 Earth 0.297936152971327 0.297936076717558 0.297936229225095 17.9256953004843 17.9251963939585 2455914.639119165 0.0168768434824834 6.61357934885629 3.56857913759234 76.3731471613448 8052096.15600632 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2012-Jun-28 09:08 < 00:01 Earth 0.144911010705791 0.144910447532472 0.144911573879118 17.3109696031735 17.3099074114779 2456106.880636704 0.0409099298939204 28.1616393912862 5.70599320642642 4.37485950682733 782218.137876269 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2012-Dec-18 19:47 < 00:01 Earth 0.251895606172308 0.251895543502334 0.251895668842283 17.5813114448201 17.5807097892685 2456280.324127098 0.0125578648967438 5.87469667414779 3.02411946075679 81.0178912343917 7690265.5300565 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2013-Jun-30 20:15 < 00:01 Earth 0.190428096929929 0.190427519947162 0.190428673912739 17.4353479598921 17.4345454309463 2456474.343666485 0.0425853168805938 29.101446620188 7.71749309584013 -8.95892543189004 1154132.96892059 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2013-Dec-19 14:14 < 00:01 Earth 0.205621884919288 0.205621835036866 0.20562193480171 17.3306591495598 17.3299114324671 2456646.092842266 0.00894241679702515 5.01630885474461 2.45214921792597 84.5592855219561 7333044.50562359 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2014-Jul-03 07:53 < 00:01 Earth 0.236921553145961 0.23692096952291 0.236922136769309 17.6717454023071 17.6711089935311 2456841.828422250 0.0448670815167007 32.1639322816072 7.60682084346761 -25.9905565493995 2659837.47066122 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2014-Dec-20 11:26 < 00:01 Earth 0.159537314039351 0.159537276785718 0.159537351292983 17.1917491287118 17.190777629871 2457011.976479508 0.00604164919347845 4.02368634906516 1.85295853770409 87.9724375176393 6975746.91581564 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2015-Jul-05 19:35 < 00:01 Earth 0.283089395493368 0.283088808681463 0.283089982306496 18.0004440813219 17.9999211895064 2457209.316092961 0.0466534708947337 41.5213637978515 1.77718998186191 -45.24466147282 26076163.4649355 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2015-Dec-21 09:17 < 00:01 Earth 0.114401678128174 0.114401653878715 0.114401702377637 17.1430343163968 17.1416756605021 2457377.887115542 0.00413766686872793 3.02182347738319 1.20546719156165 -88.1297509846783 6872492.08478853 T 76 CATAB v2.0f-lin.ifort 2021-Feb-24 20:38:39 2021-Feb-24 20:38 2016-Jul-07 05:44 < 00:01 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Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-13 16:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin