+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   10128 Bro (1993 FT31) Classification: Main-belt Asteroid          SPK-ID: 2010128 [ 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 .2308286498319315 5.9527e-08   a 2.267712375606277 7.9268e-09 AU q 1.744259389737918 1.3697e-07 AU i 5.605730706499258 6.6168e-06 deg node 148.6210968595687 5.2109e-05 deg peri 212.6190715021586 5.3956e-05 deg M 149.275379523051 1.3539e-05 deg tp 2455883.291009679340 (2011-Nov-17.79100968) 4.5652e-05 JED period 1247.32716882281 3.41 6.5401e-06 1.791e-08 d yr n .2886171399118623 1.5133e-09 deg/d Q 2.791165361474636 9.7566e-09 AU   Orbit Determination Parameters    # obs. used (total)      944      data-arc span      21751 days (59.55 yr)      first obs. used      1953-09-13      last obs. used      2013-04-02      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .55284      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:38:34   Additional Information  Earth MOID = .743407 AU   T_jup = 3.573  [ 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 14.5 mag n/a PDS3 (MPC 33888)   10128 Bro           Discovered 1993 Mar. 19 at the European Southern Observatory in the course of the Uppsala-ESO Survey of Asteroids and Comets. In Bro, a small parish on Gotland, there is among other things an old cairn from the bronze age. More than 40 meters in diameter, it is said to be the burial site of chief Baldur. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20060613/MPCPages.arc Last Updated: 2008-05-22 Alternate Designations  1993 FT31 = 1953 RL = 1977 TD6 = 1994 PG16  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-23 00:27 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin