+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11779 Zernike (4197 T-3) Classification: Main-belt Asteroid          SPK-ID: 2011779 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 42 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1104851418616232 3.5733e-08   a 2.622907955925701 1.071e-08 au q 2.33311559832527 9.5382e-08 au i 4.680863263197147 3.5902e-06 deg node 69.63639285229875 4.9673e-05 deg peri 290.6840094867914 5.2443e-05 deg M 121.6938464776936 1.6861e-05 deg tp 2458872.007695873318 (2020-Jan-23.50769587) 7.2275e-05 TDB period 1551.575818751161 4.25 9.5031e-06 2.602e-08 d yr n .2320221774851831 1.4211e-09 deg/d Q 2.912700313526132 1.1893e-08 au   Orbit Determination Parameters    # obs. used (total)      1889      data-arc span      15940 days (43.64 yr)      first obs. used      1977-10-07      last obs. used      2021-05-29      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51682      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 02:48:06   Additional Information  Earth MOID = 1.33427 au   Jupiter MOID = 2.5326 au   T_jup = 3.390  [ 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 14.0   n/a MPO350895   diameter diameter 4.701 km 0.328 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.152   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11779 Zernike           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Frits Zernike (1888-1966), Nobel Laureate in physics exactly half a century ago, was professor of physics and rector at Groningen University and a former assistant of Jacobus Kapteyn. By inventing the phase contrast microscope, he made a major contribution to the "telescope" of medical researchers and biologists. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20031110/MPCPages.arc Last Updated: 2003-11-12 Alternate Designations  4197 T-3 = 1992 ED6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Aug-02 06:23 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin