+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   11763 Deslandres (6303 P-L) Classification: Main-belt Asteroid          SPK-ID: 2011763 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO231495 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0132857 n/a   a 2.8788483 n/a AU q 2.8406008 n/a AU i 2.27079 n/a deg node 182.23482 n/a deg peri 243.66342 n/a deg M 212.59888 n/a deg tp 2457131.0078061 (2015-Apr-18.50780610) n/a JED period 1784.1303390 4.88 n/a n/a d yr n 0.20177898 n/a deg/d Q 2.9170958 n/a AU   Orbit Determination Parameters    # obs. used (total)      583      first obs. used      1960-??-??      last obs. used      2012-05-20      # oppositions      13      planetary ephem.      DE403      condition code      0      fit RMS      0.54      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.294  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.0 mag n/a PDS3 (MPC 35901)   11763 Deslandres           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Henri Deslandres (1853-1948) was a French astrophysicist and observatory director. An independent inventor of the spectroheliograph, he investigated molecular spectra in the laboratory and observed the solar chromosphere. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070926/MPCPages.arc Last Updated: 2007-09-30 Alternate Designations  6303 P-L = 1992 EO17  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-21 13:57 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin