+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   185216 Gueiren (2006 TA57) Classification: Main-belt Asteroid          SPK-ID: 2185216 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1879690946993776 3.1707e-08   a 2.619923038389397 1.8933e-08 au q 2.1274584766813 8.3003e-08 au i 3.096093267486644 5.671e-06 deg node 118.8465339597851 7.2854e-05 deg peri 289.2233482226045 7.477e-05 deg M 66.96973185215289 1.84e-05 deg tp 2458712.357521872071 (2019-Aug-16.85752187) 7.7498e-05 TDB period 1548.927989663436 4.24 1.679e-05 4.597e-08 d yr n .232418809913961 2.5194e-09 deg/d Q 3.112387600097495 2.2492e-08 au   Orbit Determination Parameters    # obs. used (total)      390      data-arc span      9131 days (25.00 yr)      first obs. used      1995-02-01      last obs. used      2020-02-01      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58038      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 20:02:02   Additional Information  Earth MOID = 1.13995 au   Jupiter MOID = 2.27513 au   T_jup = 3.378  [ 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 16.3   n/a MPO454275   185216 Gueiren           Discovered 2006 Oct. 14 by Q.-z. Ye and C. S. Lin at Lulin. Gueiren, meaning "All to be benevolent", is the earliest developed area in Taiwan. Located in the southern part of the province, it is home to three colleges, and the people are kind and well educated. The name was suggested by the second discoverer. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20090607/MPCPages.arc Last Updated: 2009-06-08 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-21 15:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin