+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   43788 (1990 RB3) Classification: Main-belt Asteroid          SPK-ID: 2043788 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2040555050715587 8.9547e-08   a 2.599433758920809 2.5891e-08 AU q 2.069004990344163 2.3312e-07 AU i 18.40638659953478 1.0059e-05 deg node 179.9895255654947 2.4796e-05 deg peri 190.5280328695907 3.191e-05 deg M 128.4689037020964 2.0057e-05 deg tp 2455854.224055725285 (2011-Oct-19.72405573) 8.3159e-05 JED period 1530.793322522051 4.19 2.2871e-05 6.262e-08 d yr n .2351721781794055 3.5136e-09 deg/d Q 3.129862527497455 3.1174e-08 AU   Orbit Determination Parameters    # obs. used (total)      454      data-arc span      9688 days (26.52 yr)      first obs. used      1986-10-04      last obs. used      2013-04-13      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .54692      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 16:00:08   Additional Information  Earth MOID = 1.06926 AU   T_jup = 3.315  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.58 mag .50398 1 autocmod 2.5c 43788 (1990 RB3)          Discovered 1990-Sep-14 by Holt, H. E. at Palomar (675) Reference: 20020822/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1990 RB3 = 1986 TF4 = 2001 FN50  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-22 00:08 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin