+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   7309 Shinkawakami (1995 FU) Classification: Main-belt Asteroid          SPK-ID: 2007309 [ 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 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1243695235502226 3.9277e-08   a 2.18633784326276 7.2189e-09 au q 1.91442404737635 8.5524e-08 au i 4.891917659432576 3.9901e-06 deg node 40.77692819983228 5.3327e-05 deg peri 228.9648311559642 5.6187e-05 deg M 222.9924369816227 1.8687e-05 deg tp 2459449.882727325067 (2021-Aug-23.38272732) 6.1645e-05 TDB period 1180.794536249977 3.23 5.8481e-06 1.601e-08 d yr n .3048794595063973 1.51e-09 deg/d Q 2.458251639149171 8.1167e-09 au   Orbit Determination Parameters    # obs. used (total)      2025      data-arc span      18587 days (50.89 yr)      first obs. used      1969-03-14      last obs. used      2020-02-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48807      source      ORB      producer      Otto Matic      solution date      2020-Feb-22 18:26:13   Additional Information  Earth MOID = .902753 au   Jupiter MOID = 2.61742 au   T_jup = 3.662  [ 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 13.6   n/a MPO452272   diameter diameter 5.578 km 0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.248   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   7309 Shinkawakami           Discovered 1995 Mar. 28 by T. Kobayashi at Oizumi. Shin-ichi Kawakami (b.1956) is a professor of Earth and Planetary Sciences in the Faculty of Education at Gifu University. He has studied impact cratering and its implications for planetary evolution. He also published several books on the history of Planet Earth. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030106/MPCPages.arc Last Updated: 2003-10-02 [ show close-approach data ] Alternate Designations  1995 FU = 1969 EA2 = 1979 EM = 1986 QT4 = 1987 YZ5  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-21 20:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin