+ 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 | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1102974483451707 3.8801e-08   a 2.621976817643675 1.1231e-08 au q 2.332779465037387 1.0448e-07 au i 4.681616349741399 3.6169e-06 deg node 69.64017628646968 5.1802e-05 deg peri 290.5203595175956 5.448e-05 deg M 29.9659465683735 1.6855e-05 deg tp 2458871.417550465988 (2020-Jan-22.91755047) 7.2506e-05 TDB period 1550.749672673083 4.25 9.9635e-06 2.728e-08 d yr n .2321457849347503 1.4915e-09 deg/d Q 2.911174170249964 1.2469e-08 au   Orbit Determination Parameters    # obs. used (total)      1763      data-arc span      15746 days (43.11 yr)      first obs. used      1977-10-07      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52676      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 20:17:08   Additional Information  Earth MOID = 1.33472 au   Jupiter MOID = 2.53343 au   T_jup = 3.391  [ 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 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 [ show close-approach data ] Alternate Designations  4197 T-3 = 1992 ED6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-27 14:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin