+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17459 Andreashofer (1990 TJ8) Classification: Main-belt Asteroid          SPK-ID: 2017459 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .181106950024481 2.7863e-08   a 2.253284687461047 6.7797e-09 au q 1.845199170178111 6.0414e-08 au i 6.116075490407218 3.2553e-06 deg node 44.50062633154428 3.3457e-05 deg peri 224.2895574223174 3.5364e-05 deg M 21.81089750859518 1.14e-05 deg tp 2458925.649697271758 (2020-Mar-17.14969727) 3.9124e-05 TDB period 1235.442465013112 3.38 5.5758e-06 1.527e-08 d yr n .2913935777625866 1.3151e-09 deg/d Q 2.661370204743983 8.0075e-09 au   Orbit Determination Parameters    # obs. used (total)      1831      data-arc span      10987 days (30.08 yr)      first obs. used      1990-10-13      last obs. used      2020-11-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47074      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 03:05:31   Additional Information  Earth MOID = .835268 au   Jupiter MOID = 2.43645 au   T_jup = 3.596  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.7   n/a MPO365462   diameter diameter 4.038 km 0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.156   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17459 Andreashofer           Discovered 1990 Oct. 13 by F. Borngen and L. D. Schmadel at Tautenburg. Innkeeper Andreas Hofer (1767-1810) headed the Tyrolese popular rising against French occupation and was executed by a firing squad on order of Napoleon. His patriotic and heroic engagement is the subject of numerous dramatic plays, stories and poems, notably by Rosegger, Eichendorff and Koerner. 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 Alternate Designations  1990 TJ8 = 1952 KT = 1999 FR56  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-21 16:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin