+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   78021 (2002 JY64) Classification: Main-belt Asteroid          SPK-ID: 2078021 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1063600880262995 4.1372e-08   a 3.001392282508955 2.3541e-08 au q 2.682163935139846 1.1861e-07 au i 12.88990220913037 5.0492e-06 deg node 81.81713890841513 2.5185e-05 deg peri 191.4058013489162 3.8859e-05 deg M 142.028850592584 3.0092e-05 deg tp 2458251.198433106519 (2018-May-12.69843311) 0.00015834 TDB period 1899.251898161445 5.20 2.2345e-05 6.118e-08 d yr n .1895483165495293 2.23e-09 deg/d Q 3.320620629878063 2.6045e-08 au   Orbit Determination Parameters    # obs. used (total)      697      data-arc span      8052 days (22.05 yr)      first obs. used      1998-09-27      last obs. used      2020-10-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60675      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 21:28:33   Additional Information  Earth MOID = 1.66722 au   Jupiter MOID = 1.77771 au   T_jup = 3.206  [ 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 14.5   n/a MPO449491   diameter diameter 4.830 km 1.346 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.144   0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   78021 (2002 JY64)          Discovered 2002-May-09 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last 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 1906-Mar-09 17:47 00:04 Jupiter 1.77663882073578 1.77663830307175 1.77663933840697 3.63816847315385 3.50467667967996 2417279.240715947 3.81443307221213 288.000144080758 18.4547854266626 -87.2519341148248 2537165.80471998 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 21:28:35 2020-Nov-12 21:28 1952-May-25 01:19 00:02 Jupiter 1.9415720403435 1.94157097210737 1.94157310859597 3.35745325917284 3.22490004834787 2434157.554867803 2.43010022601552 353.206059710008 24.4839762680848 -82.1358172975704 2248054.47477455 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 21:28:35 2020-Nov-12 21:28 1989-Jul-20 14:38 < 00:01 Jupiter 1.78723905655722 1.78723851911482 1.78723959400156 3.66771743140676 3.53614129896074 2447728.109692053 0.914648956687123 124.077260450889 13.2337622904595 -80.3038614480312 2780145.343689 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 21:28:35 2020-Nov-12 21:28 2035-Oct-17 10:58 < 00:01 Jupiter 1.87330236562685 1.87330164362438 1.87330308763229 3.50105687817886 3.36943464314375 2464617.957063885 0.774822602576845 203.41270935053 23.331727901552 -82.9607435030297 2262066.71832632 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 21:28:35 2020-Nov-12 21:28 2072-Dec-02 08:42 00:02 Jupiter 1.83721889645748 1.83721827753833 1.83721951538259 3.64554591707861 3.5168074591738 2478178.862628920 2.03875130995074 194.891551342609 11.1348036287891 -81.3672403954812 3137441.41274114 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 21:28:35 2020-Nov-12 21:28 2119-Mar-06 17:52 00:04 Jupiter 1.8146661979147 1.81466487829451 1.81466751753684 3.61501568170499 3.48350520977989 2495073.244268178 3.72422985471629 171.579180885222 50.2736415675122 -74.8662970556013 2264143.60444264 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 21:28:35 2020-Nov-12 21:28 2156-Apr-18 23:20 00:05 Jupiter 1.90951339337622 1.909511245003 1.9095155417896 3.56021233745221 3.43335860291472 2508631.471939906 5.05223393357142 461.817506518961 10.3154358037051 -75.9884279404468 3363345.42635186 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 21:28:35 2020-Nov-12 21:28 Alternate Designations  2002 JY64 = 2001 DR51  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-18 15:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin