+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   21862 Joshuajones (1999 TV189) Classification: Main-belt Asteroid          SPK-ID: 2021862 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07341401706170089 5.3272e-08   a 3.060390161570866 2.3177e-08 au q 2.835714626033841 1.5579e-07 au i 8.717176442460371 4.489e-06 deg node 291.7584845243259 3.6943e-05 deg peri 11.62684655260736 5.3458e-05 deg M 62.92689939510455 3.6807e-05 deg tp 2458858.680011647268 (2020-Jan-10.18001165) 0.00020058 TDB period 1955.526126185661 5.35 2.2214e-05 6.082e-08 d yr n .18409367953687 2.0913e-09 deg/d Q 3.285065697107891 2.4878e-08 au   Orbit Determination Parameters    # obs. used (total)      1011      data-arc span      9210 days (25.22 yr)      first obs. used      1995-11-20      last obs. used      2021-02-06      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49149      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:54:21   Additional Information  Earth MOID = 1.81884 au   Jupiter MOID = 1.91117 au   T_jup = 3.212  [ 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 14.33   n/a E2021B10   21862 Joshuajones           Discovered 1999 Oct. 12 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Joshua Steven Jones (b. 1990) is a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his physical science project. He attends the Madison Middle School, Titusville, Florida. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20051019/MPCPages.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1999 TV189 = 1995 WD35  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-20 11:11 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin