The sixth and last in a series of improved Intelsat commercial communications satellites will be launched by an Atlas-Centaur (AC-48) from Cape Kennedy, Florida, by NASA no earlier than March 30, 1978. The IVA F-6 satellite will be positioned over the Indian Ocean at 63 degrees East longitude by mid-June where it will serve as the areas primary satellite. The IVA F-3, now at 67 degrees, will be moved to 60 degrees East longitude as a spare. Intelsats IV F-l and F-5, also serving the area, will be temporariily moved to 66 and 57 degrees East longitude, respectively, where they will serve as residual spares, Intelsat IVA has almost two-thirds greater communication capability than the Intelsat IV series, presently in operation. The capacity has been increased by increasing the number of operating transponders from 12 to 20 and by using an improved antenna system. The new antenna system makes available a greater effective bandwidth through frequency reuse by beam separation, For Indian Ocean service, the east pointed beam will illuminate Japan and Southeast Asia and provide for 320 MHz of bandwidth. The same 320 MHz bandwidth will be reused in the west beam illuminating Europe and Africa. in addition to eight east-beam transponders and eight west-beam transponders, four transponders will be connected to an Earth coverage antenna to illuminate all stations in the Indian Ocean region.


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    Titel :

    Prelaunch Summary Intelsat IVA F-6 Launch


    Erscheinungsdatum :

    1978


    Format / Umfang :

    8 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch