+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19992 Schonbein (1990 TS9) Classification: Main-belt Asteroid          SPK-ID: 2019992 [ 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 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1424744176596591 5.0054e-08   a 2.724585205372361 1.3317e-08 au q 2.336401514872811 1.3688e-07 au i 7.176405664732024 5.6079e-06 deg node 344.6403626183234 3.4944e-05 deg peri 181.4301989637794 3.8197e-05 deg M 82.04945196023496 1.536e-05 deg tp 2458626.111757234453 (2019-May-22.61175723) 6.9647e-05 TDB period 1642.665053520619 4.50 1.2043e-05 3.297e-08 d yr n .2191560593734158 1.6068e-09 deg/d Q 3.112768895871911 1.5214e-08 au   Orbit Determination Parameters    # obs. used (total)      1524      data-arc span      13702 days (37.51 yr)      first obs. used      1983-02-10      last obs. used      2020-08-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4899      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 02:05:25   Additional Information  Earth MOID = 1.34361 au   Jupiter MOID = 1.86522 au   T_jup = 3.331  [ 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 MPO384926   diameter diameter 9.012 km 0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.041   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   19992 Schönbein           Discovered 1990 Oct. 10 by F. Borngen and L. D. Schmadel at Tautenburg. German chemist Christian Friedrich Schönbein (1799-1868) was a professor in Basle from 1828. Best known for his discovery of ozone in 1839, he also invented nitrocellulose and collodion wool. He is considered a cofounder of geochemistry. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010309/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] Alternate Designations  1990 TS9 = 1983 CC8 = 1999 UH26  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 06:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin