+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11959 Okunokeno (1994 GG1) Classification: Main-belt Asteroid          SPK-ID: 2011959 [ 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 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1538571916939371 3.9087e-08   a 2.648266704013152 1.304e-08 au q 2.24081182607713 1.0083e-07 au i 13.29701603632545 3.1594e-06 deg node 142.3397085558051 1.8868e-05 deg peri 70.10502791777208 2.2692e-05 deg M 64.66213733640332 1.0892e-05 deg tp 2458917.759148112745 (2020-Mar-09.25914811) 4.8254e-05 TDB period 1574.131491352793 4.31 1.1627e-05 3.183e-08 d yr n .2286975401849178 1.6892e-09 deg/d Q 3.055721581949175 1.5047e-08 au   Orbit Determination Parameters    # obs. used (total)      1773      data-arc span      13012 days (35.62 yr)      first obs. used      1985-02-13      last obs. used      2020-09-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47927      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 02:56:09   Additional Information  Earth MOID = 1.27644 au   Jupiter MOID = 2.02149 au   T_jup = 3.337  [ 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 13.91   n/a E2021B10   diameter diameter 6.663 km 0.438 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.144   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11959 Okunokeno           Discovered 1994 Apr. 13 by K. Endate and K. Watanabe at Kitami. Keno Okuno (b. 1932), an amateur astronomer and a member of the Kawasaki Astronomical Association, has greatly contributed to the popularization of astronomy. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030910/MPCPages.arc Last Updated: 2003-10-02 Alternate Designations  1994 GG1 = 1985 CD1 = 1998 HX6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-12 17:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin