+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   8651 Alineraynal (1989 YU5) Classification: Mars-crossing Asteroid          SPK-ID: 2008651 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .277920521991574 3.9876e-08   a 2.294026445893166 4.3251e-09 au q 1.656469418588062 9.0581e-08 au i 2.035683766322325 2.5665e-06 deg node 271.4258411053399 0.00011621 deg peri 106.1620309298423 0.00011628 deg M 21.44728807985666 4.0021e-06 deg tp 2459124.892314844007 (2020-Oct-02.39231484) 1.4092e-05 TDB period 1269.10062264336 3.47 3.5891e-06 9.826e-09 d yr n .2836654506166501 8.0222e-10 deg/d Q 2.93158347319827 5.5271e-09 au   Orbit Determination Parameters    # obs. used (total)      2250      data-arc span      16463 days (45.07 yr)      first obs. used      1975-12-24      last obs. used      2021-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4676      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 01:44:22   Additional Information  Earth MOID = .658429 au   Jupiter MOID = 2.5412 au   T_jup = 3.543  [ 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 14.59   n/a E2021B10   diameter diameter 3.754 km 0.745 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)   geometric albedo albedo 0.237   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)   8651 Alineraynal           Discovered 1989 Dec. 29 by E. W. Elst at Haute Provence. Aline Raynal-Roques (b. 1937), professor of botany at the Muséum National d´Histoire Naturelle de Paris, is known for her investigations on taxonomy of tropical plants, mostly parasitic and aquatic, and research in the Sahel desert. Her work was honored in 1995 by the Institut de France. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 19991123/MPCPages.arc Last Updated: 2010-06-11 [ show close-approach data ] Alternate Designations  1989 YU5 = 1940 RA1 = 1975 YO = 1982 YH4 = 1982 YK  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-04 23:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin