+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   4493 Naitomitsu (1988 TG1) Classification: Main-belt Asteroid          SPK-ID: 2004493 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO244219 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0710796 n/a   a 3.0254325 n/a AU q 2.8103860 n/a AU i 9.00691 n/a deg node 264.66355 n/a deg peri 157.35460 n/a deg M 206.86038 n/a deg tp 2457218.1448343 (2015-Jul-14.64483430) n/a JED period 1922.1161730 5.26 n/a n/a d yr n 0.18729357 n/a deg/d Q 3.2404790 n/a AU   Orbit Determination Parameters    # obs. used (total)      956      first obs. used      1941-??-??      last obs. used      2012-07-24      # oppositions      20      planetary ephem.      DE403      condition code      0      fit RMS      0.53      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.222  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 11.00 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6 diameter diameter 20.74 km 1.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6 rotation period rot_per 5.04 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Result based on fragmentary lightcurve(s), may be completely wrong. Published Reference List: [Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.1636   0.019 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6 4493 Naitomitsu           Discovered 1988 Oct. 14 by T. Kojima at Chiyoda. Mitsu Naito (b. 1925) is the mother of the first female Japanese astronaut, Chiaki Mukai. As "Mother of Astronauts", she is deeply loved by all the Japanese astronauts. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20080819/MPCPages.arc Last Updated: 2008-08-25 Alternate Designations  1988 TG1 = 1941 WP = 1962 VH = 1962 WF1 = 1985 DH1  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-24 04:13 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin