+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   7308 Hattori (1995 BQ4) Classification: Main-belt Asteroid          SPK-ID: 2007308 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO234883 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0428510 n/a   a 3.0669481 n/a AU q 2.9355263 n/a AU i 8.12348 n/a deg node 281.01553 n/a deg peri 336.01710 n/a deg M 14.66250 n/a deg tp 2456320.5969093 (2013-Jan-28.09690930) n/a JED period 1961.8150146 5.37 n/a n/a d yr n 0.18350354 n/a deg/d Q 3.1983699 n/a AU   Orbit Determination Parameters    # obs. used (total)      931      first obs. used      1982-??-??      last obs. used      2012-07-21      # oppositions      17      planetary ephem.      DE403      condition code      0      fit RMS      0.53      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.215  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.3 mag n/a PDS3 (MPC 28291)   7308 Hattori (1995 BQ4)          Discovered 1995-Jan-31 by Shimizu, Y., Urata, T. at Nachi-Katsuura Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1995 BQ4 = 1982 UM8 = 1987 SG30 = 1992 QY1  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-18 21:18 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin