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Portable Network Graphic  |  2003-02-25  |  90.7 KB  |  430x418  |  16-bit (2,487 colors)
   ocr: GOLE INSTRUMENT GOLF compares the frequency of the solar sodium D Fraunhofer lines with that of an atomic standard sodium vapour cell carried in the instrument. More than 95% of GOLF data is available in near real time or In playback modes within a few hours of the observation.