+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   6823 (1988 ED1) Classification: Main-belt Asteroid          SPK-ID: 2006823 [ 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 .13824378123984 1.0964e-07   a 2.567669197837402 2.597e-08 AU q 2.212704898955293 2.8885e-07 AU i 16.6623653591278 1.022e-05 deg node 86.74660391438455 2.3618e-05 deg peri 335.0199331531448 3.648e-05 deg M 128.2703671667167 2.547e-05 deg tp 2455865.035268905993 (2011-Oct-30.53526891) 0.00010749 JED period 1502.82023394614 4.11 2.2799e-05 6.242e-08 d yr n .2395496093732407 3.6342e-09 deg/d Q 2.922633496719512 2.956e-08 AU   Orbit Determination Parameters    # obs. used (total)      884      data-arc span      9166 days (25.10 yr)      first obs. used      1988-03-12      last obs. used      2013-04-16      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .55531      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:23:27   Additional Information  Earth MOID = 1.23532 AU   T_jup = 3.360  [ 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 11.0 mag n/a PDS3 (MPC 28115)   rotation period rot_per 2.546 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Stephens, R.D. (2008) Minor Planet Bul. 35, 126-127.] [Bennefeld, C. (2011) http://www.bennefeld.org/astronomy/] [Durkee, R.I. (2012) Minor Planet Bul. 39, 92-93.] 6823 (1988 ED1)          Discovered 1988-Mar-12 by Arai, M., Mori, H. at Yorii Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-24 02:26 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin