+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2886 Tinkaping (1965 YG) Classification: Main-belt Asteroid          SPK-ID: 2002886 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 43 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1555865022223775 1.425e-08   a 2.366133519195128 5.8274e-09 au q 1.997995081152433 3.4156e-08 au i 1.308758682789679 8.1177e-07 deg node 107.7777577723178 1.5924e-05 deg peri 332.896044555484 1.7203e-05 deg M 49.71329797837901 7.8345e-06 deg tp 2459016.919151362238 (2020-Jun-16.41915136) 2.87e-05 TDB period 1329.404972052698 3.64 4.9111e-06 1.345e-08 d yr n .2707978438234166 1.0004e-09 deg/d Q 2.734271957237822 6.734e-09 au   Orbit Determination Parameters    # obs. used (total)      2812      data-arc span      24228 days (66.33 yr)      first obs. used      1954-11-23      last obs. used      2021-03-24      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .40877      source      ORB      producer      Otto Matic      solution date      2021-May-03 20:35:50   Additional Information  Earth MOID = 1.01348 au   Jupiter MOID = 2.48811 au   T_jup = 3.531  [ 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 13.14   n/a MPCxxxxx   diameter diameter 5.784 km 0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 12. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong. Published Reference List: [Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.] geometric albedo albedo 0.257   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   2886 Tinkaping (1965 YG)          Discovered 1965-Dec-20 by Purple Mountain Observatory at Nanking Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1965 YG = 1937 CN = 1979 QR8 = 1979 SF5 = 1979 UO2 = 1981 EU23  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-May-14 01:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin