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orig_kast_sky_red_600_7500.sav   :: JXP 23 August 2013
  -- Includes the 5575A line (data goes down to 5500A)

kast_sky_red_1200_5000.sav   :: JXP+RM 06 September 2013
  -- Kindly made by Rosalie McGurk (5400-6800A)

dupont_sky_bcs_600.sav :: JXP from August 2014 run
  -- 600 lines/mm grating