+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11524 Pleyel (1991 PY2) Classification: Main-belt Asteroid          SPK-ID: 2011524 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1226327627166932 3.9611e-08   a 2.393007046595071 9.7342e-09 au q 2.099545981270603 9.3816e-08 au i 9.418663167085334 4.5737e-06 deg node 323.9520961388219 2.3225e-05 deg peri 169.1291423329498 2.8424e-05 deg M 101.3013114351302 1.7676e-05 deg tp 2458620.024269076094 (2019-May-16.52426908) 6.5579e-05 TDB period 1352.11737333053 3.70 8.2502e-06 2.259e-08 d yr n .2662490750438695 1.6246e-09 deg/d Q 2.686468111919539 1.0928e-08 au   Orbit Determination Parameters    # obs. used (total)      1687      data-arc span      30068 days (82.32 yr)      first obs. used      1938-02-20      last obs. used      2020-06-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4654      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 17:16:08   Additional Information  Earth MOID = 1.11428 au   Jupiter MOID = 2.34795 au   T_jup = 3.502  [ 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 13.9   n/a MPO384858   diameter diameter 5.439 km 1.355 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   geometric albedo albedo 0.187   0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   11524 Pleyel           Discovered 1991 Aug. 2 by E. W. Elst at the European Southern Observatory. Ignaz Jozef Pleyel (1757-1831) was an Austro-French composer who became famous as a piano builder. In 1795 he settled in Paris, where he founded a piano manufacturing company in 1807. The famous Polish-French composer Chopin preferred the Pleyel grand piano for performing his compositions. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20000726/MPCPages.arc Last Updated: 2013-03-29 [ show close-approach data ] Alternate Designations  1991 PY2 = 1938 DP1 = 1975 FM = 1992 WA6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-26 06:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin