+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   20040 Tatsuyamatsuyama (1992 WT3) Classification: Main-belt Asteroid          SPK-ID: 2020040 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2249596481781539 4.1732e-08   a 2.445127617569909 9.034e-09 au q 1.895072568970695 1.0037e-07 au i 7.499382888110367 4.3076e-06 deg node 93.85345075183305 2.4443e-05 deg peri 336.42094811999 2.5862e-05 deg M 113.8654473716562 6.888e-06 deg tp 2458758.787001718507 (2019-Oct-02.28700172) 2.6134e-05 TDB period 1396.531459296057 3.82 7.7396e-06 2.119e-08 d yr n .2577815183493707 1.4286e-09 deg/d Q 2.995182666169124 1.1066e-08 au   Orbit Determination Parameters    # obs. used (total)      1127      data-arc span      11845 days (32.43 yr)      first obs. used      1988-10-09      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51002      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:11:55   Additional Information  Earth MOID = .911901 au   Jupiter MOID = 2.30346 au   T_jup = 3.452  [ 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 15.26   n/a E2021B10   20040 Tatsuyamatsuyama           Discovered 1992 Nov. 21 by T. Seki at Geisei. Tatsuya Matsuyama (b. 1983) was born in Kochi city, Japan. He teaches at University of Kochi Primary School and works as an instructor at Geisei Observatory. He is dedicated to improving mathematical skills and increasing astronomical knowledge of primary school students. 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 2020-08-07 Last Updated: 2020-08-24 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-21 11:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin