+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11462 Hsingwenlin (1981 ES23) Classification: Main-belt Asteroid          SPK-ID: 2011462 [ 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 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .099229539230762 5.3629e-08   a 2.569162641914481 9.9615e-09 au q 2.31422581674842 1.3803e-07 au i 1.494174760261788 3.8959e-06 deg node 155.314090731787 0.00018444 deg peri 243.4188548378966 0.00018572 deg M 4.551234471626374 1.89e-05 deg tp 2459181.484290515360 (2020-Nov-27.98429052) 7.9e-05 TDB period 1504.131561919741 4.12 8.748e-06 2.395e-08 d yr n .2393407658705915 1.392e-09 deg/d Q 2.824099467080542 1.095e-08 au   Orbit Determination Parameters    # obs. used (total)      1365      data-arc span      14636 days (40.07 yr)      first obs. used      1981-02-09      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .48754      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 22:47:18   Additional Information  Earth MOID = 1.32107 au   Jupiter MOID = 2.53276 au   T_jup = 3.423  [ 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 14.94   n/a E2021B10   11462 Hsingwenlin           Discovered 1981 Mar. 3 by S. J. Bus at Siding Spring. Hsing-Wen "Edward" Lin (b. 1982) is a postdoctoral researcher at the National Central University of Taiwan whose research spans from trans-Neptunian objects, to Centaurs, Neptune Trojans and main-belt asteroids. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2017-03-12 Last Updated: 2017-04-19 [ show close-approach data ] Alternate Designations  1981 ES23 = 1991 RW40  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-22 15:47 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin