+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   4911 Rosenzweig (1953 UD) Classification: Main-belt Asteroid          SPK-ID: 2004911 [ 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 39 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1809817349643517 3.5996e-08   a 2.636397598189231 8.8228e-09 au q 2.159257786813094 9.4649e-08 au i 13.03985313923014 3.9454e-06 deg node 209.7792916397609 1.2486e-05 deg peri 157.5465825628381 1.4681e-05 deg M 217.6345840604526 9.2188e-06 deg tp 2459618.824974679813 (2022-Feb-08.32497468) 4.1596e-05 TDB period 1563.56085089692 4.28 7.8487e-06 2.149e-08 d yr n .2302436773045896 1.1558e-09 deg/d Q 3.113537409565367 1.042e-08 au   Orbit Determination Parameters    # obs. used (total)      2794      data-arc span      24422 days (66.86 yr)      first obs. used      1953-10-16      last obs. used      2020-08-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40659      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 03:47:39   Additional Information  Earth MOID = 1.16517 au   Jupiter MOID = 2.37675 au   T_jup = 3.338  [ 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 12.1   n/a MPO384798   diameter diameter 9.971 km 0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 9.75 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Gorby, R.D.; Rengstorf, A.W. Pavel, J. (2018) Minor Planet Bull. 45, 319-320.] geometric albedo albedo 0.309   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   4911 Rosenzweig           Discovered 1953 Oct. 16 at the Goethe Link Observatory, Indiana University. "Pioneers of the Zone", Jack (1919-1994) and Marcelle (b. 1929) Rosenzweig worked to help the Puerto Ordaz region of Venezuela. They built and operated a plant to make ice blocks for delivery to the mines. They manufactured baseball bats and furniture accessories from Belgian wood and opened a real estate company. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20000726/MPCPages.arc Last Updated: 2013-03-29 Alternate Designations  1953 UD = 1987 SM  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-18 18:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin