+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   13474 V'yus (1973 QO1) Classification: Main-belt Asteroid          SPK-ID: 2013474 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2920532810090689 7.1168e-08   a 2.620761573023112 1.4996e-08 AU q 1.855359556879224 1.8919e-07 AU i 7.817324305320498 8.6667e-06 deg node 317.3526036151279 5.0658e-05 deg peri 36.437171564462 5.2346e-05 deg M 115.6546726496248 1.2989e-05 deg tp 2455902.647860047782 (2011-Dec-07.14786005) 5.416e-05 JED period 1549.67167583246 4.24 1.3301e-05 3.642e-08 d yr n .2323072723172884 1.9939e-09 deg/d Q 3.386163589166999 1.9375e-08 AU   Orbit Determination Parameters    # obs. used (total)      745      data-arc span      20653 days (56.54 yr)      first obs. used      1956-09-27      last obs. used      2013-04-14      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .51007      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:52:33   Additional Information  Earth MOID = .855915 AU   T_jup = 3.330  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.5 mag n/a PDS3 (MPC 38309)   rotation period rot_per 6.587 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Clark, M. (2008) Minor Planet Bul. 35, 152-154.] 13474 V'yus           Discovered 1973 Aug. 29 by T. M. Smirnova at the Crimean Astrophysical Observatory. Yurij Sergeevich Vasil'ev (b. 1929), rector of St. Petersburg State Technical University, is a prominent expert in the field of hydropower engineering. He made a significant contribution to the mastering and use of water-power resources, as well as to the development of higher education in Russia. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20020427/MPCPages.arc Last Updated: 2003-10-02 Alternate Designations  1973 QO1 = 1956 SA = 1990 RT4  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-24 13:08 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin