c152a: 
        correlation with 2048 spectral channels
        participating stations with fringes:
        Effelsberg
        Pico Veleta
        Plateau de Bure (only 1 Gbps)
        Yebes
        Metsahovi

c152b:  correlation without zoom mode, 8x32 MHz, 2 pols
        stations with fringes:
        all VLBA, Ef, GBT, Yebes, Metsahovi

        Yebes has only LCP, no RCP
        Metsahovi shows a few fringes at the beginning, and more at the end (10-17 UT)
        Metsahovi has fringes only in RCP

        IRAM was not participating
        Onsala was not participating