+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14850 Nagashimacho (1989 QH) Classification: Main-belt Asteroid          SPK-ID: 2014850 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1505338458976549 3.6585e-08   a 2.17147523995296 5.8499e-09 au q 1.844594720811308 7.8294e-08 au i 2.781770167285163 3.1786e-06 deg node 306.6090625749275 8.5898e-05 deg peri 28.94496257255301 8.7039e-05 deg M 285.8602285954583 1.6353e-05 deg tp 2459441.201884976997 (2021-Aug-14.70188498) 5.362e-05 TDB period 1168.774558514633 3.20 4.723e-06 1.293e-08 d yr n .3080149181699465 1.2447e-09 deg/d Q 2.498355759094612 6.7306e-09 au   Orbit Determination Parameters    # obs. used (total)      1592      data-arc span      11245 days (30.79 yr)      first obs. used      1989-08-29      last obs. used      2020-06-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .54537      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:40:40   Additional Information  Earth MOID = .833378 au   Jupiter MOID = 2.84663 au   T_jup = 3.672  [ 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 15.09   n/a E2021B10   diameter diameter 3.395 km 0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.184   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14850 Nagashimacho           Discovered 1989 Aug. 29 by K. Endate and K. Watanabe at Kitami. Nagashimacho, a town located in the northwestern part of Kagoshima Prefecture, has been settled for a long time, and has more than 200 ancient tombs. It is a beautiful town with an indented coastline and flowers in full bloom throughout the year. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2014-10-08 Last Updated: 2015-01-12 Alternate Designations  1989 QH = 1998 HU93  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-21 03:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin