+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15071 Hallerstein (1999 BN12) Classification: Main-belt Asteroid          SPK-ID: 2015071 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1784729880111508 2.656e-08   a 2.529679169218564 7.8612e-09 au q 2.078199769178561 6.669e-08 au i 6.266302587410827 6.608e-07 deg node 35.39819506063627 9.1089e-06 deg peri 49.78838245331094 1.0191e-05 deg M 186.2301026096229 4.1836e-06 deg tp 2459909.863172215930 (2022-Nov-26.36317222) 1.969e-05 TDB period 1469.591372457566 4.02 6.8504e-06 1.876e-08 d yr n .2449660543379346 1.1419e-09 deg/d Q 2.981158569258567 9.2643e-09 au   Orbit Determination Parameters    # obs. used (total)      2320      data-arc span      24496 days (67.07 yr)      first obs. used      1953-08-14      last obs. used      2020-09-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .46615      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:46:41   Additional Information  Earth MOID = 1.10015 au   Jupiter MOID = 2.27205 au   T_jup = 3.421  [ 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 13.15   n/a E2021B10   15071 Hallerstein           Discovered 1999 Jan. 24 at Črni Vrh Observatory. Ljubljana-born Ferdinand Avguštin Hallerstein (1703-1774), a Jesuit missionary in China, was known for his work in astronomy, mathematics and cartography. President of the Chinese Imperial Bureau of Astronomy, he prepared an accurate catalogue of 3083 stars and discovered and carefully measured comet C/1748 H1. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030806/MPCPages.arc Last Updated: 2003-10-02 Alternate Designations  1999 BN12 = 1975 FS  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-20 20:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin