+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19833 Wickwar (2000 SA230) Classification: Main-belt Asteroid          SPK-ID: 2019833 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03066074255608717 3.2853e-08   a 2.889234472138337 1.4168e-08 au q 2.80064839780393 9.8452e-08 au i 2.470409986602958 3.5167e-06 deg node 145.6100660315206 8.0317e-05 deg peri 22.23654314680896 0.00010098 deg M 302.9933776691794 6.2692e-05 deg tp 2459680.550408085960 (2022-Apr-11.05040809) 0.00031318 TDB period 1793.794172149361 4.91 1.3195e-05 3.613e-08 d yr n .2006919219548141 1.4762e-09 deg/d Q 2.977820546472743 1.4603e-08 au   Orbit Determination Parameters    # obs. used (total)      1144      data-arc span      10699 days (29.29 yr)      first obs. used      1991-12-07      last obs. used      2021-03-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .57629      source      ORB      producer      Otto Matic      solution date      2021-May-04 03:00:07   Additional Information  Earth MOID = 1.80744 au   Jupiter MOID = 1.98134 au   T_jup = 3.289  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.97   n/a MPCxxxxx   19833 Wickwar           Discovered 2000 Sept. 28 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Steve Wickwar mentored a finalist in the 2003 Discovery Channel Youth Science Challenge, a middle school science competition. He teaches at the Barbara Bush Middle School, San Antonio, Texas. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20031010/MPCPages.arc Last Updated: 2003-10-10 [ show close-approach data ] Alternate Designations  2000 SA230 = 1998 HE85 = 1999 PP7  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jul-25 01:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin