+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0306830632489802 3.2832e-08   a 2.888653050285601 1.4143e-08 au q 2.800020326039328 9.8343e-08 au i 2.470307332974349 3.5173e-06 deg node 145.6141916868366 8.0336e-05 deg peri 22.62301202699714 0.000101 deg M 263.2682966438064 6.2604e-05 deg tp 2459682.345531387854 (2022-Apr-12.84553139) 0.0003132 TDB period 1793.252731846168 4.91 1.317e-05 3.606e-08 d yr n .2007525172591691 1.4744e-09 deg/d Q 2.977285774531873 1.4577e-08 au   Orbit Determination Parameters    # obs. used (total)      1140      data-arc span      10658 days (29.18 yr)      first obs. used      1991-12-07      last obs. used      2021-02-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .57726      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:07:39   Additional Information  Earth MOID = 1.80548 au   Jupiter MOID = 1.98255 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 14.9   n/a MPO449096   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-Apr-18 19:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin