Study 000473: ACRONYM: CORE_FLARE_TR120x120 Perform a high-cadence (3m 30s) 120"x120" sparse (4") raster over an active region to study the transition-region response during flares. TARGET : Active region EXPOSURE TIME : 4s RASTER : Scanning SLIT : 2" STEP_SIZE : 4" FOV : 120"x120" SPECTRAL WIND.: 10 DATA COMP. : JPEG85 RASTER DURATON: 3m 5s DATA VOLUME : 3.4 MBits (18.4 kBits/s) LINES : He II, Mg V, O V, Mg VI, Si VII, Si X, Fe XIV, Fe XVI, Ca XVII, Fe XVII, Fe XXIII. POINTING: -------- The core of an active region observed on-disk, not too far from Sun centre (within a few days meridian passage). INSTRUCTION TO PLANNERS: ----------------------- The study should be run continuously for about 10 hours or more on an AR likely to flare. SOT: FG: NFI: Na I 589.6 nm shuttered Stokes IV with partial field of view (164"x164"). 2x2 binning. Cadence: 1-3 minutes or longer. SP: Fast Map STOKES IQUV 164"x164" scan to be run at the beginning and (possibly) at the end of the SOT/FGIV sequence. XRT: FOV: large to cover the AR. At least 384x384 Exposure: AEC Binning: 2x2 is acceptable. Filters: at least Al_poly/Open and one thick filter. WARNING: ------- None