+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   390905 (2005 EA84) Classification: Main-belt Asteroid          SPK-ID: 2390905 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1521436741486827 8.4169e-08   a 2.681133532388013 2.7807e-08 au q 2.273216025887264 2.3146e-07 au i 12.71259556873144 1.0971e-05 deg node 338.6130728429508 2.3383e-05 deg peri 140.2014503012122 3.6645e-05 deg M 207.6908587424687 2.7584e-05 deg tp 2459678.921436436594 (2022-Apr-09.42143644) 0.00012516 TDB period 1603.526322193725 4.39 2.4946e-05 6.83e-08 d yr n .2245052014534425 3.4927e-09 deg/d Q 3.089051038888762 3.2038e-08 au   Orbit Determination Parameters    # obs. used (total)      168      data-arc span      5671 days (15.53 yr)      first obs. used      2005-03-04      last obs. used      2020-09-12      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55886      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 16:37:29   Additional Information  Earth MOID = 1.30303 au   Jupiter MOID = 2.00017 au   T_jup = 3.325  [ 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 16.8   n/a MPO437600   diameter diameter 3.093 km 0.918 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.035   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   390905 (2005 EA84)          Discovered 2005-Mar-04 by CSS at Catalina Reference: Last Updated: 2014-04-17 [ 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 2152-Mar-24 18:31 00:05 Jupiter 1.99697715342642 1.99697621717375 1.99697808969804 4.24548579088463 4.14437509612389 2507145.271682643 5.48853672620913 612.582742771333 31.2593311197713 87.3994092601389 1339722.6759382 T 13 CATAB v2.0f-lin.ifort 2020-Nov-12 16:37:30 2020-Nov-12 16:37 Alternate Designations  2005 EA84 = 2008 YG154  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 10:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin