+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   19981 Bialystock (1989 YB6) Classification: Main-belt Asteroid          SPK-ID: 2019981 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ 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 .2053489665816522 9.6209e-08   a 3.186711608502834 4.7308e-08 AU q 2.532323672903023 3.2849e-07 AU i 14.63805822489818 8.0642e-06 deg node 119.7591533288067 3.3461e-05 deg peri 64.59750754553869 3.9336e-05 deg M 337.3683314871095 2.0607e-05 deg tp 2456531.125102149402 (2013-Aug-26.62510215) 0.00011929 JED period 2077.842238940539 5.69 4.627e-05 1.267e-07 d yr n .1732566569556112 3.8581e-09 deg/d Q 3.841099544102645 5.7023e-08 AU   Orbit Determination Parameters    # obs. used (total)      615      data-arc span      9787 days (26.80 yr)      first obs. used      1986-07-07      last obs. used      2013-04-23      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .53934      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 14:24:42   Additional Information  Earth MOID = 1.577 AU   T_jup = 3.115  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.2 mag n/a PDS3 (MPO 7692)   19981 Bialystock           Discovered 1989 Dec. 29 by E. W. Elst at Haute Provence. Settled in 1437, the Polish city of Bialystock had many occupiers until Jan Klemens Branicki (1689-1771), a commander in chief, became heir to the Bialystock area, where he built the magnificent Branicki castle. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070601/MPCPages.arc Last Updated: 2007-06-06 [ show close-approach data ] Alternate Designations  1989 YB6 = 1986 NL = 1991 KF  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-May-19 12:43 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin