HOP 0037

HINODE Operation Plan (HOP)

accepted on

15-Aug-2007

HOP No.

HOP title

HOP 0037

High Cadence Studies of Propagating Intensity Perturbations in Coronal Loops

plan term

in September 2007

proposer

name :

De Moortel
Bewsher

e-mail :

ineke[at]mcs.st-and.ac.uk
D.Bewsher[at]rl.ac.uk

contact person in HINODE team

name :

J. L. Culhane

e-mail :

jlc[at]mssl.ucl.ac.uk

abstract of observational proposal

Our aim is to obtain a more thorough understanding of the morphology of coronal loops which support longitudinal intensity perturbations, of the nature of the (quasi-)periodic driver and the evolution of the perturbation as they travel through the different temperature regions of the solar atmosphere.

request to SOT

HINODE/SOT/FPP Ensure at a minimum SOT/FPP synoptic observations during JOP to provide context images and assist with data alignment. If possible, home in on selected target region for higher cadence observation (especially before and after high cadence sequences).

request to XRT

HINODE/XRT Context images before and after high-cadence sequences in the full field of view. A reduced field of view might be necessary during the high-cadence parts. Probably restrict the partial frame, high cadence runs to 2 channels (cadence ~ 10-20 seconds), interrupted by full frame images in all bands every 30 or so minutes (if possible aligned with interruptions in TRACE high-cadence runs and EIS and CDS rasters).

request to EIS

HINODE/EIS; Raster 1
Slit/slot: 40" slot No of pointing positions: 1 Total spatial width: 80" Pixels in solar-y: 416 Exposure time: 30 seconds Cadence: 1 minute 6 seconds Data rate: 119.337 kbits/s

Emission lines: Ion Species Wavelength Width (Pixels) Total counts per exposure (angstroms) (per pixel)
Fe XI 188.23 48 2243.7
Ca XVII 192.82 120 7323.3
Fe XII 195.12 48 12722.4
Fe XIII 202.04 48 2188.8
Fe XIII 203.83 48 1374.0
He II 256.32 48 1110.9
Fe XVI 262.98 48 7889.4
Mg VI 269.00 48 115.8
Fe XIV 274.20 48 553.8
Si VII 275.35 48 352.8
Fe XV 284.16 48 3796.5

HINODE/EIS; Raster 2 Slit/slot: 2" slit No of slit positions: 59 Total Spatial Width: 120" Pixels in solar-y: 512 Exposure time: 30 seconds Cadence: 33 minutes 27 seconds Data rate: 115.543 kbits/s

Emission Lines Ion Species Wavelength Width (Pixels) Total counts per exposure (angstroms) (per pixel)
Fe XI 188.23 32 2243.7
Ca XVII 192.82 120 7323.3
Fe XII 195.12 32 12722.4
Fe XIII 202.04 32 2180.7
Fe XIII 203.83 32 1374.0
He II 256.32 32 1110.9
Si X 258.37 32 924.9
Si X 261.04 32 317.4
Mg VI 269.00 32 115.8
Fe XIV 274.20 48 553.8
Si VII 275.35 32 352.8
Fe XV 284.16 32 3796.5

NOTES: (i) The planner should use the study as defined, with one 'St Andrew 2' raster, followed by repeats of 'St Andrew 1' raster to fill the available time slot. (ii) The planner should not repeatedly switch between these rasters 1 and 2 in a study during a SAA HINODE/XRT Context images before and after high-cadence sequences in the full field of view

other participating instruments

SoHO/CDS
TRACE

remarks

in September 2007
minimum run 1 - 2 hours