+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1545833867950704 3.8779e-08   a 2.64835140627738 1.3256e-08 au q 2.238960276471535 1.0025e-07 au i 13.30111220891725 3.1574e-06 deg node 142.3369724850434 1.8585e-05 deg peri 70.11030841009148 2.2277e-05 deg M 109.399598496217 1.0575e-05 deg tp 2458918.117735760609 (2020-Mar-09.61773576) 4.729e-05 TDB period 1574.207012579996 4.31 1.1819e-05 3.236e-08 d yr n .2286865686171666 1.717e-09 deg/d Q 3.057742536083224 1.5305e-08 au   Orbit Determination Parameters    # obs. used (total)      1800      data-arc span      13277 days (36.35 yr)      first obs. used      1985-02-13      last obs. used      2021-06-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .48317      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 02:50:50   Additional Information  Earth MOID = 1.27609 au   Jupiter MOID = 2.01897 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-Jul-25 14:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin