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HINODE Operation Plan (HOP)

accepted on

20-jun-07


 HOP No.

 HOP title

HOP 0020

EIS+ SOT+XRT Physical mechanisms driving solar microflares and supergranular network dynamics - relevance for coronal heating

plan term

2007/08/18-2007/08/23

@ @

proposer

 name : J. Rybak, P. Gomory, A. Veronig, S. Soiser, M. Temmer @  e-mail : choc[at]astro.sk

contact person in HINODE team

 name : J. L. Culhane @  e-mail : jlc[at]mssl.ucl.ac.uk

 abstract of observational proposal
This proposal merges together attempts to observe two kinds of solarstructures – solar micro flares and super granular network – which are planned tobe investigated toaddress common openquestions on the irrelevance for the heating and dynamics of the solar corona.

 request to SOT
SOT: We plan (if possible) to run in time a sequence of 3exposures:2using the BFI imager and 1 using the NBIimager.The reason is to cover evolution of the photosphere with its magnetic concentration signatures (G-band), evolution of the longitudinal component of the magnetic field vector inthe photosphere, and evolution of chromosphere (CaIIH)witha reasonable temporal resolution (`10s per image,@`30s@per@sequence@of 3 selected channels).@
@•BFI: G-band and CaIIH channels,
@  FOV:109hx109h(1k x1kmode, binning 2 x 2 pxs),
   3bit JPEG compression, cadence:`10s per filtergram,
   telemetry needed: 300kbps, nocompensation of the solar rotation
 •NFI: FeI630.25nm longitudinal magnetograms,other parameters as in
   case of BFI
 •SP:none

 request to XRT
XRT: high cadence of the images is required using just one selected filter using no binning and loss-less compression of data.

•Microflare mode: 256x256px,thin Be filter, exposure max. 1s with AEC cadence 10s

•Network mode: 384x384px, thin-Al/Mesh, exposure max. 15s with AEC, cadence 15s For the each particular day target will selected well in advance leading to the corresponding XRT observing mode.

 request to EIS
EIS: measurements are proposed using 2 prepared rasters acronymedasf Context|calib|jrfandfObs|sit|stare|jrf.They have been specified using the EIS study template and the corresponding.DEF file which we real ready sent to the EISSSCL. Culhane. The EIS measurements should start and ends with 3 repetitions of the scanningfContext|calib|jrfraster (28minutes). In between the sit-and-starefObs|sit|stare|jrfraster (5.6hours) is scheduled. Intention is to place the EIS slit for the sit-and-stare raster to the middle of the X-range of the previous scanning raster. For both rasters the same set of 11 selected lines is used.

 other participating instruments
DOT
SoHO/CDS/MDI/EIT JOP 189: 3-17 Aug 2007 7:00 - 13:30 UT
TRACE
RHESSI

 remarks
7:00 - 13:30 UT

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