+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17356 Vityazev (1978 PG4) Classification: Main-belt Asteroid          SPK-ID: 2017356 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2217907672800825 4.1216e-08   a 2.232464324107976 5.8382e-09 au q 1.737324348738657 9.2323e-08 au i 6.113483832462219 4.0344e-06 deg node 302.7806617114195 3.298e-05 deg peri 37.51036413919407 3.366e-05 deg M 242.6864713017106 7.7725e-06 deg tp 2459597.527706874480 (2022-Jan-18.02770687) 2.696e-05 TDB period 1218.358837729658 3.34 4.7793e-06 1.309e-08 d yr n .2954794505950638 1.1591e-09 deg/d Q 2.727604299477294 7.1331e-09 au   Orbit Determination Parameters    # obs. used (total)      1563      data-arc span      23608 days (64.64 yr)      first obs. used      1955-10-23      last obs. used      2020-06-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49352      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:01:54   Additional Information  Earth MOID = .73108 au   Jupiter MOID = 2.67518 au   T_jup = 3.601  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.72   n/a E2021B10   17356 Vityazev           Discovered 1978 Aug. 9 by N. S. Chernykh at the Crimean Astrophysical Observatory. Veniamin Vladimirovich Vityazev (b. 1943), a professor at St. Petersburg University and director of the V. V. Sobolev Astronomical Institute, has contributed to the elaboration of fundamental stellar catalogue systems and to the detection by wavelet analysis of periodicities in the earth's rotation. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030501/MPCPages.arc Last Updated: 2003-10-02 [ show close-approach data ] Alternate Designations  1978 PG4 = 1998 PE1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 16:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin