+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   21125 Orff (1992 YZ4) Classification: Main-belt Asteroid          SPK-ID: 2021125 [ 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 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1574602593864008 3.457e-08   a 2.344389336765678 6.4688e-09 au q 1.975241183695842 7.9945e-08 au i 7.131681384205211 2.9493e-06 deg node 123.5359101547853 3.054e-05 deg peri 116.7842846275814 3.1917e-05 deg M 161.214124387295 9.4406e-06 deg tp 2458613.357360396448 (2019-May-09.85736040) 3.4161e-05 TDB period 1311.121783284247 3.59 5.4266e-06 1.486e-08 d yr n .2745740362106036 1.1364e-09 deg/d Q 2.713537489835513 7.4874e-09 au   Orbit Determination Parameters    # obs. used (total)      2121      data-arc span      11206 days (30.68 yr)      first obs. used      1990-05-13      last obs. used      2021-01-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49152      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:51:02   Additional Information  Earth MOID = .973123 au   Jupiter MOID = 2.32319 au   T_jup = 3.535  [ 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 14.36   n/a E2021B10   21125 Orff           Discovered 1992 Dec. 30 by F. Borngen at Tautenburg. German composer Carl Orff (1895-1982), best known for his Carmina burana, developed music-pedagogic, rhythmic and tonal ideas with K. Maendler. Their "Orff-Instrumentarium" obtained international acceptance and, in 1961, the Orff Institute was founded and directed by him in Salzburg. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010705/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] Alternate Designations  1992 YZ4 = 1998 RA34 = 2000 AQ74  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-10 20:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin