+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   23811 Connorivens (1998 QB46) Classification: Main-belt Asteroid          SPK-ID: 2023811 [ 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 .1379257856061362 6.6461e-08   a 2.60960666552106 3.2148e-08 AU q 2.249674616056058 1.7607e-07 AU i 3.590663816123924 8.3233e-06 deg node 324.2334750646841 0.00011608 deg peri 279.6586294411529 0.00012123 deg M 253.3319149133471 4.3008e-05 deg tp 2456856.739627770015 (2014-Jul-18.23962777) 0.00018801 JED period 1539.788268100794 4.22 2.8453e-05 7.79e-08 d yr n .2337983782952388 4.3202e-09 deg/d Q 2.969538714986061 3.6582e-08 AU   Orbit Determination Parameters    # obs. used (total)      552      data-arc span      12998 days (35.59 yr)      first obs. used      1977-09-09      last obs. used      2013-04-11      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .59345      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 14:36:40   Additional Information  Earth MOID = 1.24027 AU   T_jup = 3.394  [ 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 14.7 mag n/a PDS3 (MPO 11206)   23811 Connorivens           Discovered 1998 Aug. 17 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Connor Joseph Ivens (b. 1993) is a finalist in the 2007 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his physical science project. He attends the Newaygo Middle School, Newaygo, Michigan. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20071026/MPCPages.arc Last Updated: 2007-10-28 Alternate Designations  1998 QB46 = 1977 RK15  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-23 19:48 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin