+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08775191724352274 4.0614e-08   a 2.663847935806362 1.4973e-08 au q 2.430090172194153 1.1033e-07 au i 4.746614680289084 5.5539e-06 deg node 26.01508238071099 5.1535e-05 deg peri 291.4574263967205 6.0185e-05 deg M 298.9005472325488 3.2753e-05 deg tp 2459270.023967668035 (2021-Feb-24.52396767) 0.00014494 TDB period 1588.044147134842 4.35 1.3389e-05 3.666e-08 d yr n .2266939496924654 1.9113e-09 deg/d Q 2.897605699418571 1.6287e-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.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57441      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 02:54:55   Additional Information  Earth MOID = 1.42196 au   Jupiter MOID = 2.33761 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 15.3   n/a MPO279644   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-Jan-21 05:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin