+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1586 Thiele (1939 CJ) Classification: Main-belt Asteroid          SPK-ID: 2001586 [ 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 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1049663019061914 3.5096e-08   a 2.430502420794238 6.5276e-09 au q 2.175381569909421 8.4311e-08 au i 4.058018090213633 3.4694e-06 deg node 125.8456333070377 4.9681e-05 deg peri 30.42067349092873 5.2031e-05 deg M 149.393864680739 1.5985e-05 deg tp 2458426.155091748194 (2018-Nov-03.65509175) 6.1031e-05 TDB period 1384.020471071646 3.79 5.5756e-06 1.527e-08 d yr n .2601117595618021 1.0479e-09 deg/d Q 2.685623271679054 7.2128e-09 au   Orbit Determination Parameters    # obs. used (total)      2905      data-arc span      29782 days (81.54 yr)      first obs. used      1939-01-18      last obs. used      2020-08-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44444      source      ORB      producer      Otto Matic      solution date      2020-Aug-24 22:37:14   Additional Information  Earth MOID = 1.18629 au   Jupiter MOID = 2.2978 au   T_jup = 3.497  [ 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 12.1   n/a MPO319102   diameter diameter 11.415 km 0.257 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 3.086 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Childers, D.; Church, A. (2007) Minor Planet Bull. 34, 124-125.] geometric albedo albedo 0.215   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   1586 Thiele (1939 CJ)          Discovered 1939-Feb-13 by Wachmann, A. at Bergedorf Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1939 CJ = 1943 DA = 1951 KT  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-23 04:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin