+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   1910 Mikhailov (1972 TZ1) Classification: Main-belt Asteroid          SPK-ID: 2001910 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO250216 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0501958 n/a   a 3.0464330 n/a AU q 2.8935149 n/a AU i 10.36108 n/a deg node 200.88233 n/a deg peri 330.02960 n/a deg M 93.31164 n/a deg tp 2455897.0930669 (2011-Dec-01.59306690) n/a JED period 1942.1638705 5.32 n/a n/a d yr n 0.18536026 n/a deg/d Q 3.1993511 n/a AU   Orbit Determination Parameters    # obs. used (total)      1000      first obs. used      1916-??-??      last obs. used      2012-07-20      # oppositions      29      planetary ephem.      DE403      condition code      0      fit RMS      0.57      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.211  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 10.7 mag n/a PDS3 (MPC 17263)   rotation period rot_per 8.88 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: [Hawkins, S.; Ditteon, R. (2008) Minor Planet Bul. 35, 1-4.] 1910 Mikhailov (1972 TZ1)          Discovered 1972-Oct-08 by Zhuravleva, L. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1972 TZ1 = 1950 QR = 1954 JL = 1959 GP = 1959 JK = 1961 TR = 1969 DD = A916 FC  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-21 13:50 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin