+ 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 | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1554898911440619 3.0075e-08   a 2.365940560393511 6.963e-09 au q 1.998060720204603 7.2518e-08 au i 1.308744321957404 3.3372e-06 deg node 107.7786197100865 0.00015759 deg peri 332.9198327305327 0.00015807 deg M 355.5365768622816 1.3436e-05 deg tp 2459016.980475235209 (2020-Jun-16.48047524) 4.9641e-05 TDB period 1329.242355388237 3.64 5.8679e-06 1.607e-08 d yr n .2708309726519761 1.1956e-09 deg/d Q 2.733820400582419 8.0456e-09 au   Orbit Determination Parameters    # obs. used (total)      2357      data-arc span      23813 days (65.20 yr)      first obs. used      1954-11-23      last obs. used      2020-02-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4264      source      ORB      producer      Otto Matic      solution date      2020-Feb-22 16:33:28   Additional Information  Earth MOID = 1.01394 au   Jupiter MOID = 2.48835 au   T_jup = 3.531  [ 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 13.0   n/a MPO448941   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. 2019-August); 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 [ show close-approach data ] 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 | Close-Approach Data ] 2020-Sep-21 07:52 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin