Study 000224: ACRONYM: GDZ_PLUME1_2_300_50s Intended to sparse-raster a large area with the 2" slit and step size 4" (75 exposures), for a large sample (23) of spectral windows. Spectral windows are selected to include mostly transition region lines, however they include also Fe XIV, XV and XVI. TARGET : Coronal Hole EXPOSURE TIME : 50s SLIT : 2" FOV : 298"x512" SPECTRAL WIND.: 23 DATA COMP. : DCPM POINTING: Off-limb region at the solar poles. The centre of the field of view must be as close to the solar limb as possible, so at least 200" of the slit are off-limb. WARNING: None