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    NSO             National Solar Observatory, Tucson (US)
    SAO  (aka CFA)  Smithonian Astronomical Observatory, Harvard U. (US)
    SDAC (aka GSFC) Solar Data Analysis Center, NASA/GSFC (US)
    ROB             Royal Observatory of Belgium (Belgium)
    MPS             Max Planck Institute for Solar System Research (Germany)
    UCLan           University of Central Lancashire (UK)
    IAS             Institut Aeronautique et Spatial (France)
    KIS             Kiepenheuer-Institut fur Sonnenphysik Germany)
    NMSU            New Mexico State University (US)
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