+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   2582 Harimaya-Bashi (1981 SA) Classification: Outer Main-belt Asteroid          SPK-ID: 2002582 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06505554424465045 7.9526e-08   a 3.201429690278022 3.7511e-08 AU q 2.993158939416003 2.6589e-07 AU i 18.14948738294877 9.1278e-06 deg node 56.33317537455181 2.8632e-05 deg peri 237.7660068707014 9.5489e-05 deg M 289.6637018723967 9.6594e-05 deg tp 2456809.281643843498 (2014-May-31.78164384) 0.00056312 JED period 2092.253867507793 5.73 3.6772e-05 1.007e-07 d yr n .1720632498716885 3.0241e-09 deg/d Q 3.409700441140042 3.9951e-08 AU   Orbit Determination Parameters    # obs. used (total)      851      data-arc span      27393 days (75.00 yr)      first obs. used      1938-04-23      last obs. used      2013-04-22      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .58453      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 12:52:59   Additional Information  Earth MOID = 2.01604 AU   T_jup = 3.113  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 10.50 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3 diameter diameter 28.87 km 3.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3 rotation period rot_per 7.238 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Sauppe, J.; Torno, S.; Lemke-Oliver, R.; Ditteon, R. (2007) Minor Planet Bul. 34, 119-122.] geometric albedo albedo 0.1337   0.043 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3 SMASSII spectral type spec_B Xc   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 2582 Harimaya-Bashi (1981 SA)          Discovered 1981-Sep-26 by Seki, T. at Geisei Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1981 SA = 1927 JC = 1935 WA = 1938 HB = 1958 VH = 1975 XT  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-May-24 11:36 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin