+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   9995 Alouette (4805 P-L) Classification: Main-belt Asteroid          SPK-ID: 2009995 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO250310 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1609477 n/a   a 2.3913529 n/a AU q 2.0064702 n/a AU i 2.31419 n/a deg node 20.98422 n/a deg peri 197.76769 n/a deg M 216.20417 n/a deg tp 2456940.0202138 (2014-Oct-09.52021380) n/a JED period 1350.7156429 3.70 n/a n/a d yr n 0.26652538 n/a deg/d Q 2.7762356 n/a AU   Orbit Determination Parameters    # obs. used (total)      607      first obs. used      1950-??-??      last obs. used      2013-01-23      # oppositions      18      planetary ephem.      DE403      condition code      0      fit RMS      0.54      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.513  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.1 mag n/a PDS3 (MPC 33670)   9995 Alouette           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. The first Canadian satellite Alouette-1 was launched on 1962 Sept. 29. It was engaged in research and exploration of the upper atmosphere, especially the ionosphere. During its six-year lifespan it returned the first useful data on the ionosphere. The citation was prepared by W. Fröger. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20001111/MPCPages.arc Last Updated: 2013-03-29 Alternate Designations  4805 P-L = 1981 EP22  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-20 09:37 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin