+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   3628 Boznemcova (1979 WD) Classification: Main-belt Asteroid          SPK-ID: 2003628 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ 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 .2991437806017893 8.9086e-08   a 2.537479339052052 1.329e-08 AU q 1.778408176369092 2.2895e-07 AU i 6.887319294995014 8.4305e-06 deg node 156.7440654589088 4.035e-05 deg peri 187.9389795331724 4.1384e-05 deg M 144.335275426686 7.3792e-06 deg tp 2455808.567502682976 (2011-Sep-04.06750268) 2.9392e-05 JED period 1476.393753392385 4.04 1.1599e-05 3.176e-08 d yr n .2438373903796393 1.9157e-09 deg/d Q 3.296550501735013 1.7266e-08 AU   Orbit Determination Parameters    # obs. used (total)      1262      data-arc span      30229 days (82.76 yr)      first obs. used      1930-06-25      last obs. used      2013-03-30      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .53759      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 12:58:38   Additional Information  Earth MOID = .770768 AU   T_jup = 3.374  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.6 mag n/a PDS3 (MPC 17269)   rotation period rot_per 3.335410 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Warner, B.D. (2008) Minor Planet Bul. 35, 56-60.] SMASSII spectral type spec_B O   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) 3628 Boznemcova (1979 WD)          Discovered 1979-Nov-25 by Vavrova, Z. at Klet Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1979 WD = 1930 MQ = 1962 JP = 1975 XT4 = 1978 JX = 1979 YB10 = 1985 CQ2  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-21 22:59 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin