+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   2403 Sumava (1979 SQ) Classification: Main-belt Asteroid          SPK-ID: 2002403 [ 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 .1295244118636787 8.3421e-08   a 2.548378946169171 1.6041e-08 AU q 2.218301661960827 2.0697e-07 AU i 3.305053751712419 7.2347e-06 deg node 290.4299899328145 0.00013369 deg peri 39.74436550145842 0.00013953 deg M 112.5123544178696 4.6179e-05 deg tp 2455936.100063675454 (2012-Jan-09.60006368) 0.00018829 JED period 1485.916617262467 4.07 1.4029e-05 3.841e-08 d yr n .2422746982015956 2.2875e-09 deg/d Q 2.878456230377514 1.8118e-08 AU   Orbit Determination Parameters    # obs. used (total)      986      data-arc span      34543 days (94.57 yr)      first obs. used      1918-09-06      last obs. used      2013-04-03      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .52596      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 12:51:34   Additional Information  Earth MOID = 1.20816 AU   T_jup = 3.427  [ 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 12.5 mag n/a PDS3 (MPC 17265)   2403 Sumava (1979 SQ)          Discovered 1979-Sep-25 by Mrkos, A. at Klet Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1979 SQ = 1934 PZ = 1951 WD1 = 1963 TK1 = A918 RC  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-24 10:34 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin