+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2020 WD) Classification: Apollo [NEO]          SPK-ID: 54088803 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3772602321411536 0.00033663   a 1.579373174754823 0.00084359 au q .9835384842093077 6.3364e-06 au i .6337826169600561 0.00037926 deg node 202.5279733557198 0.0063476 deg peri 185.6469453905746 0.0033781 deg M 286.9183922466502 0.058523 deg tp 2459147.674020859611 (2020-Oct-25.17402086) 8.6344e-05 TDB period 724.9792271713046 1.98 0.58085 0.00159 d yr n .4965659518337289 0.00039784 deg/d Q 2.175207865300338 0.0011618 au   Orbit Determination Parameters    # obs. used (total)      32      data-arc span      24 days      first obs. used      2020-11-16      last obs. used      2020-12-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      7      norm. resid. RMS      .58518      source      ORB      producer      Otto Matic      solution date      2020-Dec-12 05:24:29   Additional Information  Earth MOID = .00278359 au   Jupiter MOID = 3.27456 au   T_jup = 4.315  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 28.213   .41173 8 autocmod 2.8 [ 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 1911-Aug-16 03:33 8_11:11 Earth 0.396870361306599 0.282742614369152 0.511792365539016 18.0322153369339 18.0318430145996 2419264.647972232 12190.9175092757 5779145.37247958 27.6581790431251 -8.44670578062911 275410.576179043 T 8 CATAB v2.0f-lin.ifort 2020-Dec-12 05:24:29 2020-Dec-12 05:24 2012-Dec-20 01:16 5_03:24 Earth 0.457340519646423 0.357716149608503 0.557004305337163 19.9255747125287 19.925282320852 2456281.552680772 7403.60061895032 4973355.96668827 12.7034486526838 2.40865714552344 190075.224565641 T 8 CATAB v2.0f-lin.ifort 2020-Dec-12 05:24:29 2020-Dec-12 05:24 2014-Dec-13 22:01 4_07:39 Earth 0.333038744850683 0.25446459878593 0.411621248933878 16.1697395874774 16.1692447971345 2457005.417155634 6219.07968803876 3919266.5195394 9.3437273337721 1.28240734334142 97038.8118373142 T 8 CATAB v2.0f-lin.ifort 2020-Dec-12 05:24:29 2020-Dec-12 05:24 2016-Dec-06 05:41 3_17:35 Earth 0.21153910914473 0.15628410450469 0.266794389453466 12.5178607910381 12.5168545337844 2457728.736494063 5375.44014821813 2755376.85732123 6.56263140571754 0.778305382692639 51169.7012163691 T 8 CATAB v2.0f-lin.ifort 2020-Dec-12 05:24:29 2020-Dec-12 05:24 2018-Nov-27 20:58 3_01:06 Earth 0.10232879175737 0.0736691238730874 0.130985920202603 9.04963410593176 9.04675635934338 2458450.373918974 4385.78089427382 1428852.21114612 4.00654455352571 0.737422658969101 37172.7107061569 T 8 CATAB v2.0f-lin.ifort 2020-Dec-12 05:24:29 2020-Dec-12 05:24 2020-Nov-12 04:26 < 00:01 Earth 0.0177395491676293 0.0176965084994695 0.017782588203061 6.21181051986132 6.18758353814025 2459165.684385114 0.202189754167131 2129.31282364936 4.04581557740099 0.154246419468725 699.263490204666 T 8 CATAB v2.0f-lin.ifort 2020-Dec-12 05:24:29 2020-Dec-12 05:24 2022-Nov-08 21:55 8_13:51 Earth 0.00838554301871392 0.00358761222829598 0.0259165048537994 5.96991828092452 5.91645423460776 2459892.413380837 12351.0088466286 902735.876999463 4.92442117175196 25.6980225619404 112566.363339872 T 8 CATAB v2.0f-lin.ifort 2020-Dec-12 05:24:29 2020-Dec-12 05:24 2022-Nov-09 05:19 8_12:24 Moon 0.00700555789725494 0.00375832981842063 0.027890970608042 5.28539041360378 5.28450522596439 2459892.721275094 12264.270329187 1083329.90507099 4.4940951843937 32.4527540191435 125481.765683839 T 8 CATAB v2.0f-lin.ifort 2020-Dec-12 05:24:29 2020-Dec-12 05:24 2024-Nov-28 19:57 8_13:10 Earth 0.113761134369438 0.0327600722786514 0.194858952903039 9.43186616311033 9.42938258401459 2460643.331328610 12309.9728974907 4044992.10455062 7.90754781056024 2.0150985668881 57636.8177413187 T 8 CATAB v2.0f-lin.ifort 2020-Dec-12 05:24:29 2020-Dec-12 05:24 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-26 10:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin