+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 49 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .126296924879902 2.0944e-08   a 3.07048091098676 1.2769e-08 au q 2.682688614026692 6.3752e-08 au i 1.507736818342864 2.7039e-07 deg node 30.12958832562493 1.3657e-05 deg peri 296.5389381500178 1.4579e-05 deg M 129.0520998831487 1.1281e-05 deg tp 2458496.016859235436 (2019-Jan-12.51685924) 5.9652e-05 TDB period 1965.205764996305 5.38 1.2259e-05 3.356e-08 d yr n .1831869244494491 1.1427e-09 deg/d Q 3.458273207946828 1.4382e-08 au   Orbit Determination Parameters    # obs. used (total)      3546      data-arc span      25225 days (69.06 yr)      first obs. used      1952-02-26      last obs. used      2021-03-20      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4167      source      ORB      producer      Otto Matic      solution date      2021-May-03 19:56:36   Additional Information  Earth MOID = 1.66954 au   Jupiter MOID = 1.86373 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 11.45   n/a E2021B10   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 ] 2021-May-11 13:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin