+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   12145 Behaim (4730 P-L) Classification: Main-belt Asteroid          SPK-ID: 2012145 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08769473079192122 4.055e-08   a 2.664273965620375 1.5529e-08 au q 2.430631177449372 1.1012e-07 au i 4.747201882235984 5.5553e-06 deg node 25.94121744465627 5.1516e-05 deg peri 290.8394702902953 6.0211e-05 deg M 29.24451326339072 3.2996e-05 deg tp 2459267.464667534431 (2021-Feb-21.96466753) 0.00014531 TDB period 1588.425126765773 4.35 1.3888e-05 3.802e-08 d yr n .2266395777388663 1.9815e-09 deg/d Q 2.897916753791378 1.6891e-08 au   Orbit Determination Parameters    # obs. used (total)      676      data-arc span      21826 days (59.76 yr)      first obs. used      1960-09-24      last obs. used      2020-06-27      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .57437      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 23:10:24   Additional Information  Earth MOID = 1.42178 au   Jupiter MOID = 2.3325 au   T_jup = 3.374  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.33   n/a E2021B10   12145 Behaim           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Martin Behaim (1459-1507) was a German merchant, astronomer and cosmographer from Nürnberg. He traveled through Europe and became a Portuguese knight. He developed the earliest terrestrial globe, Erdapfel, or `Earth Apple', with a diameter of about 50 cm. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20101128/MPCPages.arc Last Updated: 2010-12-06 [ show close-approach data ] Alternate Designations  4730 P-L = 1995 WG15  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jul-25 11:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin