+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07286887532779789 3.2514e-08   a 2.948509266884888 1.2217e-08 au q 2.733654712713397 9.3615e-08 au i 2.417636807370597 3.2014e-06 deg node 148.7257010677555 8.8829e-05 deg peri 296.2433220814416 9.2281e-05 deg M 171.6101901247144 2.5003e-05 deg tp 2458318.958536696381 (2018-Jul-19.45853670) 0.00012743 TDB period 1849.277869563989 5.06 1.1493e-05 3.147e-08 d yr n .19467058246086 1.2099e-09 deg/d Q 3.16336382105638 1.3107e-08 au   Orbit Determination Parameters    # obs. used (total)      2105      data-arc span      10101 days (27.66 yr)      first obs. used      1992-11-21      last obs. used      2020-07-18      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49324      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:59:30   Additional Information  Earth MOID = 1.75059 au   Jupiter MOID = 1.98584 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 13.69   n/a E2021B10   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 ] 2021-Apr-15 03:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin