+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   47790 (2000 EJ30) Classification: Main-belt Asteroid          SPK-ID: 2047790 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05262253642043341 3.4971e-08   a 2.965813616111938 1.9329e-08 au q 2.80974498108187 1.0302e-07 au i 10.70285601025124 3.8818e-06 deg node 117.9507215082762 2.2325e-05 deg peri 213.4391542623549 4.609e-05 deg M 179.6141504048929 4.1424e-05 deg tp 2458069.708826029043 (2017-Nov-12.20882603) 0.0002137 TDB period 1865.581424816384 5.11 1.8238e-05 4.993e-08 d yr n .192969331282569 1.8865e-09 deg/d Q 3.121882251142005 2.0346e-08 au   Orbit Determination Parameters    # obs. used (total)      1218      data-arc span      7847 days (21.48 yr)      first obs. used      1998-12-15      last obs. used      2020-06-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49586      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 23:40:31   Additional Information  Earth MOID = 1.80353 au   Jupiter MOID = 2.12943 au   T_jup = 3.236  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.2   n/a MPO468343   diameter diameter 5.136 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 10.7921 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] geometric albedo albedo 0.184   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   47790 (2000 EJ30)          Discovered 2000-Mar-05 by LINEAR at Socorro Reference: 20020921/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  2000 EJ30 = 1998 XN85  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-20 20:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin