+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11259 Yingtungchen (1978 VD3) Classification: Main-belt Asteroid          SPK-ID: 2011259 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .009998455673607387 3.306e-08   a 2.604569198086966 9.5724e-09 au q 2.578527528411051 8.5585e-08 au i 1.388887057817714 3.3068e-06 deg node 306.5478228617695 0.00014234 deg peri 208.895704643009 0.00022467 deg M 226.5465254828369 0.00017543 deg tp 2459569.653828798841 (2021-Dec-21.15382880) 0.00074862 TDB period 1535.331913304601 4.20 8.464e-06 2.317e-08 d yr n .2344769862987783 1.2926e-09 deg/d Q 2.630610867762882 9.6681e-09 au   Orbit Determination Parameters    # obs. used (total)      1482      data-arc span      15352 days (42.03 yr)      first obs. used      1978-11-05      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49446      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:45:19   Additional Information  Earth MOID = 1.58417 au   Jupiter MOID = 2.33446 au   T_jup = 3.412  [ 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 14.7   n/a MPO435805   11259 Yingtungchen           Discovered 1978 Nov. 7 by E. F. Helin and S. J. Bus at Palomar. Ying-Tung "Charles" Chen (b. 1981) is a post-doctoral fellow at the Academia Sinica Institute of Astronomy and Astrophysics (Taiwan) where he uses data from large surveys to study outer solar system objects. 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  1978 VD3 = 1994 RP16  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-15 18:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin