+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   172947 Baeyens (2005 JQ138) Classification: Main-belt Asteroid          SPK-ID: 2172947 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO248298 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0758057 n/a   a 3.0059172 n/a AU q 2.7780515 n/a AU i 11.47142 n/a deg node 54.53265 n/a deg peri 189.67174 n/a deg M 180.61136 n/a deg tp 2457349.0415858 (2015-Nov-22.54158580) n/a JED period 1903.5484682 5.21 n/a n/a d yr n 0.18912048 n/a deg/d Q 3.2337829 n/a AU   Orbit Determination Parameters    # obs. used (total)      136      first obs. used      2002-??-??      last obs. used      2012-12-06      # oppositions      8      planetary ephem.      DE403      condition code      0      fit RMS      0.36      data source      MPC:mpu      producer      MPCLINUX   Additional Information  T_jup = 3.217  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.5 mag n/a MPO248298   172947 Baeyens           Discovered 2005 May 13 by A. D. Grauer at Mt. Lemmon. Dennis A. Baeyens (b. 1946) is a molecular Biologist who earned a PhD at Michigan State University. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20121029/MPCPages.arc Last Updated: 2013-03-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-23 21:04 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin