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The Fermi/LAT team is organizing a multi-wavelength campaign on the blazar Markarian 501, starting on mid-February 2012 and finishing on July 2012.
This time interval provides with ensures good visibility for optical/TeV instruments. The goal for this time interval is to sample every 4-6 days the peaks of the 2 components in the SED of Mrk501 (optical/X-ray and GeV/TeV)
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