+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11282 Hanakusa (1989 UY2) Classification: Main-belt Asteroid          SPK-ID: 2011282 [ 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 .2134896595574404 3.784e-08   a 2.416297559900906 7.9998e-09 au q 1.900443016448187 9.0349e-08 au i 3.568499910288278 3.622e-06 deg node 62.55860491696403 6.3346e-05 deg peri 281.1379682098918 6.3805e-05 deg M 91.56445553609662 7.4234e-06 deg tp 2458651.561840178426 (2019-Jun-17.06184018) 2.8039e-05 TDB period 1371.90503454963 3.76 6.8131e-06 1.865e-08 d yr n .2624088336538405 1.3032e-09 deg/d Q 2.932152103353624 9.7076e-09 au   Orbit Determination Parameters    # obs. used (total)      2009      data-arc span      12644 days (34.62 yr)      first obs. used      1985-09-12      last obs. used      2020-04-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50327      source      ORB      producer      Otto Matic      solution date      2020-May-20 03:31:27   Additional Information  Earth MOID = .896788 au   Jupiter MOID = 2.48344 au   T_jup = 3.482  [ 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 14.0   n/a MPO347615   11282 Hanakusa           Discovered 1989 Oct. 30 by K. Endate and K. Watanabe at Kitami. Kiyotaka Hanakusa (b. 1956), director of the Seiwa Kogen Observatory since 1995, is an astronomy scholar and popularizer of astronomy in Kumamoto Prefecture. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20020526/MPCPages.arc Last Updated: 2003-10-02 [ show close-approach data ] Alternate Designations  1989 UY2 = 1985 RT6 = 1999 FR26  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-19 16:14 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin