+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   3754 Kathleen (1931 FM) Classification: Main-belt Asteroid          SPK-ID: 2003754 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO244211 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1087491 n/a   a 3.1565544 n/a AU q 2.8132819 n/a AU i 8.46150 n/a deg node 110.56053 n/a deg peri 56.95557 n/a deg M 200.08867 n/a deg tp 2457310.4029460 (2015-Oct-14.90294600) n/a JED period 2048.4168355 5.61 n/a n/a d yr n 0.17574548 n/a deg/d Q 3.4998269 n/a AU   Orbit Determination Parameters    # obs. used (total)      966      first obs. used      1909-??-??      last obs. used      2012-11-24      # oppositions      29      planetary ephem.      DE403      condition code      0      fit RMS      0.57      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.180  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 10.00 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17 diameter diameter 53.23 km 1.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17 rotation period rot_per 11.17 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Torno, S.; Oliver, R.L.; Ditteon, R. (2008) Minor Planet Bul. 35, 54-55.] geometric albedo albedo 0.0624   0.005 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17 3754 Kathleen (1931 FM)          Discovered 1931-Mar-16 by Tombaugh, C. W. at Flagstaff (LO) Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1931 FM = 1925 BF = 1929 WA1 = 1955 MR = 1957 WH1 = 1959 CH1 = 1959 EC1 = 1963 WD = 1977 KR = 1978 NM2 = 1982 DQ4 = 1985 UD4 = 1987 BK = A909 HE  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-18 07:51 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin