+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   190333 Jirous (1998 SX14) Classification: Main-belt Asteroid          SPK-ID: 2190333 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1709151848753859 4.7366e-08   a 2.979171064014265 2.7129e-08 au q 2.469985490832866 1.4345e-07 au i 13.95271997270826 5.7643e-06 deg node 344.4447782380358 2.321e-05 deg peri 298.3582947657614 3.0736e-05 deg M 174.7464842671359 2.4607e-05 deg tp 2458288.809278922046 (2018-Jun-19.30927892) 0.00012209 TDB period 1878.198928948575 5.14 2.5655e-05 7.024e-08 d yr n .1916729875900472 2.6181e-09 deg/d Q 3.488356637195663 3.1766e-08 au   Orbit Determination Parameters    # obs. used (total)      374      data-arc span      8160 days (22.34 yr)      first obs. used      1998-09-14      last obs. used      2021-01-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59847      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 12:02:35   Additional Information  Earth MOID = 1.48789 au   Jupiter MOID = 1.93109 au   T_jup = 3.194  [ 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 15.3   n/a MPO454314   diameter diameter 4.671 km 1.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.067   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   190333 Jirous           Discovered 1998 Sept. 23 by M. Tichy at Klet. Ivan Martin Jirous (1944-2011) (known as Magor) was a poet, art historian, frontman of the rock group The Plastic People of the Universe and leading personality of the Czech underground movement during the communist regime. In prison he wrote the poetry collection Magorovy labutí písně. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20120207/MPCPages.arc Last Updated: 2012-02-09 [ show close-approach data ] Alternate Designations  1998 SX14 = 2003 QY11  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-12 13:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin