+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   21434 Stanchiang (1998 FG116) Classification: Main-belt Asteroid          SPK-ID: 2021434 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07631706440317589 2.7098e-08   a 2.233983100976934 6.0027e-09 au q 2.063492068784071 6.0423e-08 au i 6.567648021036033 3.3124e-06 deg node 222.8278143417583 2.8676e-05 deg peri 213.6198773819509 3.7247e-05 deg M 93.95840528568209 2.3965e-05 deg tp 2459078.189189423607 (2020-Aug-16.68918942) 8.1047e-05 TDB period 1219.602349136121 3.34 4.9156e-06 1.346e-08 d yr n .2951781785718913 1.1897e-09 deg/d Q 2.404474133169797 6.4608e-09 au   Orbit Determination Parameters    # obs. used (total)      1792      data-arc span      8891 days (24.34 yr)      first obs. used      1997-02-01      last obs. used      2021-06-06      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .47331      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 18:33:06   Additional Information  Earth MOID = 1.08121 au   Jupiter MOID = 2.77593 au   T_jup = 3.627  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.87   n/a MPCxxxxx   21434 Stanchiang           Discovered 1998 Mar. 31 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Stanley Shang Chiang (b. 1987) is a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors, for his materials science project. He attends the John L. Miller-Great Neck North High School, Great Neck, New York. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20050224/MPCPages.arc Last Updated: 2005-02-28 Alternate Designations  1998 FG116 = 1999 RM117  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jul-31 05:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin