+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15467 Aflorsch (1999 AN24) Classification: Main-belt Asteroid          SPK-ID: 2015467 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07316347850827751 3.275e-08   a 2.947832465738652 1.2541e-08 au q 2.732158788485579 9.4546e-08 au i 2.417586832135003 3.333e-06 deg node 148.7329310028834 9.1136e-05 deg peri 296.2630624936756 9.4699e-05 deg M 132.6239185877069 2.5668e-05 deg tp 2458319.461007006465 (2018-Jul-19.96100701) 0.00013111 TDB period 1848.641180930981 5.06 1.1797e-05 3.23e-08 d yr n .1947376287586015 1.2427e-09 deg/d Q 3.163506142991724 1.3458e-08 au   Orbit Determination Parameters    # obs. used (total)      2036      data-arc span      10069 days (27.57 yr)      first obs. used      1992-11-21      last obs. used      2020-06-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49546      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 17:50:14   Additional Information  Earth MOID = 1.74944 au   Jupiter MOID = 1.98652 au   T_jup = 3.265  [ 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 13.6   n/a MPO337389   diameter diameter 5.422 km 0.371 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.282   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   15467 Aflorsch           Discovered 1999 Jan. 15 by the OCA-DLR Asteroid Survey at Caussols. Alphonse Florsch (b. 1929) was, for many years, the director of the Observatoire de Strasbourg. A specialist in radial velocities in the Small Magellanic Cloud, he was also secretary of the Groupe d´Alsace of the Société Astronomique de France for 20 years. Now retired, he still continues to teach astronomy in schools. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20020526/MPCPages.arc Last Updated: 2003-10-02 [ show close-approach data ] Alternate Designations  1999 AN24 = 1997 UB19  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Sep-23 20:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin