+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2032 Ethel (1970 OH) Classification: Main-belt Asteroid          SPK-ID: 2002032 [ 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 41 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1262910814287164 3.6725e-08   a 3.069859480287432 1.3885e-08 au q 2.682163606687735 1.1062e-07 au i 1.507847048420767 3.9569e-06 deg node 30.13649413899946 0.00013806 deg peri 296.4311845073478 0.00013889 deg M 92.52348641274929 1.6184e-05 deg tp 2458495.576411446397 (2019-Jan-12.07641145) 8.7867e-05 TDB period 1964.609191966742 5.38 1.3329e-05 3.649e-08 d yr n .183242550972496 1.2432e-09 deg/d Q 3.457555353887129 1.5638e-08 au   Orbit Determination Parameters    # obs. used (total)      2998      data-arc span      24816 days (67.94 yr)      first obs. used      1952-02-26      last obs. used      2020-02-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .43721      source      ORB      producer      Otto Matic      solution date      2020-Feb-22 16:11:17   Additional Information  Earth MOID = 1.67094 au   Jupiter MOID = 1.86423 au   T_jup = 3.218  [ 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 11.4   n/a MPO358647   diameter diameter 36.007 km 0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   geometric albedo albedo 0.034   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   2032 Ethel (1970 OH)          Discovered 1970-Jul-30 by Smirnova, T. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1970 OH = 1952 DU = 1960 WM = 1965 UG1 = 1971 UD3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-04 16:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin