Data, Calibration and Analysis with SOT/HINODE. HINODE Solar Optical Telescope (SOT) EUV Imaging Spectrometer (EIS) X-ray Telescope (XRT)

Data, Calibration and Analysis with SOT/HINODE

HINODE

• Solar Optical Telescope (SOT)

• EUV Imaging Spectrometer (EIS)

• X-ray Telescope (XRT)

Solar Optical TelescopeOptical Telescope assembly specifications

Telescope Optics Aplanatic Gregorian telescope

Primary mirror 50 cm diameter aperture

Primary-secondary mirror length

1.5 m

Effective f-ratio 9.055 at secondary focus

Image stabilization system (Correlation tracker and Tip-tilt mirror)

0.01” accuracy

Solar Optical Telescope-Optics

Broad-band Filter Imager (BFI)CCD camera 4kx2K pixels full field of view

Field of view 218”x109”

Spatial sampling 0.0541”/pixel (full resolution)

Center (Å) Band width (Å) Line of Interest Purpose

3883.5 7 CN I Magnetic network imaging

3968.5 3 Ca II H Chromospheric heating

4305.0 8 CH I Magnetic elements

4504.5 4 Blue Continuum Temperature

5550.5 4 Green continuum

Temperature

6684.0 4 Red continuum Temperature

Exposure time 0.03-0.8 sec

Narrow-band Filter Imager (NFI)CCD camera 4kx2K pixels full field of view

Field of view 328”x164”

Spatial sampling 0.08”/pixel (full resolution)

Spectral resolution 90 mÅ at 6300 Å

Center (Å) Tunable range (Å) Lines geff Purpose

5172 6 Mg I b 5172.7 1.75 Chromospheric dopp and mag

5250 6 Fe I 5247.1

Fe I 5250.2

Fe I 5250.6

2.00

3.00

1.50

Photospheric magnetograms

5576 6 Fe I 5576.1 0.0 Photo Dopp

5896 6 Na I D 5896 - Chromospheric mag (scattering pol.)

6300 6 Fe I 6301.5

Fe I 6302.5

Ti I 6303.8

1.67

2.50

0.92

Photo mag.

Umbral mag

6563 6 H I 6562.8 - Chromo. structure

Exposure time 0.1-1.6 sec

Spectro-Polarimeter (SP)

FOV along slit 164” N-S direction

Spatial scan range ±164”

Slit width 0.16”

Spectral coverage 6300.8 – 6303.2 Å

Spectral resolution/sampling 30 mÅ/21.5mÅ

Polarization measurement Stokes I, Q, U, V simultaneously with dual beam and dual camera

Polarization S/N 10³ (with normal mapping)

Level-0 Data of Hinode • The Level-0 data are not calibrated.

• The fits files are in Level-0 data.

• Level -1, 2 obtained after calibrating the data with SSW software, which includes dark subtraction and flat fielding etc.

• SOT FITS Data Format

http://solar-b.nao.ac.jp/hrc_e/lv0_desc.shtml

Filenames of SOT Level-0 fits files1. FGyyyymodd_hhmmss.s.fits

FG Filtergram. Ex: G-Band, Ca II K, Blue continuum, Na D1 etc.

2. FGIVyyyymodd_hhmmss.s.fits

FGIV Shuttered Stokes I and V images.

3. FGSIVyyyymodd_hhmmss.s.fits

FGSIV shutterless Stokes-I and V images.

4. FGSIQUVyyyymodd_hhmmss.s.fits

FGSIQUV shutter less Stokes I, Q, U & V images.

5. SP4Dyyyymodd_hhmmss.s.fits

The Stokes spectrum data (SOT-SP), 4D Stokes I, Q, U & V. The unit of the file is one slit position, not one raster.

yyyy:Year, mo:Month, dd:Day, hh:Hour, mm:Minutes ss/ss.s:Second

Examples of SOT/FG filenames• Each data sets are arranged under the subdirectory

/hinode/sot/level0/year/month/date/FG/hour/filenames

Ex: /disk/jf1/HINODE/sot/level0/2006/12/28/FG/H0000

/disk/jf1/HINODE/sot/level0/2006/12/28/FGIQUV/H1700

/disk/jf1/HINODE/sot/level0/2006/12/28/SP4D/H0000

• Filenames of Level-0 data.

Ex: 1. FG20061228_00253332.2.fits

2. FGIQUV20061228_170032.1.fits

3. FGIV20061228_103518.2.fits

4. FGSIQUV20061228_170212.5.fits

5. SP4D20061228_00645.4.fits

Routines to calibrate the FG/SOT data• To check the SOT data catalog.idl> sot_cat,'2006-10-28','2006-10-29',sotcat

To check the available data between 2006-10-28 to 2006-10-29, the structure sotcat contains the information. Then one can use the following routine to see the files.

idl> files = sot_cat2files(sotcat)All the names of the files and their paths are stored in files.

Idl> read_sot,files,index,dataTo read those files use the routine read_sot and the calling sequence is as above.

Idl> sot_cat,'28-Dec-06 15:00','28-Dec-06 18:00',index,files,/level0One can use the above arguments to check the data between 15:00 – 18:00 UT of 28th December 2006. The file names and their paths are stored in files.

• To read and calibrate the broad-band image data.idl> file = findfile(‘*.fits’)idl> mreadfits, file,indexidl> ss = where(index.WAVE eq ‘Ca II H line’) Or Index.Wave eq ‘G band 4305’ or ‘CN bandhead 3883’ or ‘blue cont 4504’ or ‘red

cont 6684’ or ‘green cont 5550’Idl>fg_prep,file(ss),index_out,image_out,/despike,/display,/float,/verbose,/

tf_deripple,/outflatfits,outdir=‘/disk/data/ravindra/hinode/’Process an SOT BFI or NFI filtergram, magnetogram, dopplergram, or Stokes set despike - cosmic ray removal, /no_flat - skip flat fielding (This option is necessary for

NFI.), /float - return images with floating (default: integer), /quiet - set for fewer messgaes, /verb - set for lots of messages

Idl> write_sot,index_out,data_out

Rigid Alignment of the FG imagesidl> fileb = findfile('reg20070406_*.fits')idl> mreadfits,fileb,indexb,databIdl> fg_rigidalign, indexb, datab, index_outb, data_outb, dx = 512, dy =512, x0

= 10, y0 = 10, nt = 40 dx=the x-dimension of the box in which image-to-image correlations are calculated. Default =

256. dy=the y-dimension of the box in which image-to-image correlations are calculated. ; Default

= 256. X0: the x-coordinate of the lower-left corner of the correlation box. ; Default = image center. ; Y0: the y-coordinate of the lower-left corner of the correlation box. ; Default = image center. ; Nt: the number of images correlated at one time, i.e. the number of images ; assembled into a

subgroup and aligned with respect to the first image in the group. ; Default = 4. Set this parameter to be less than the number of images over which the ; correlated structures in the images change significantly.

To make a movieIdl>xstepper,data [,info_array , xsize=xsize, ysize=ysize, /interp ,start=start,

/noscale]

make Hinode SOT/XRT movies for given time range ; hinode_make_wwwmovies.pro

Programs to calibrate the SP/SOT level0 data

idl> file=sot_filelist(obs,start_time,end_time,topdir=topdir0,/scanset, sltidx=sltidx,macroid=macroid,sp_end=sp_end) ;extract file list from level-0/1 data tree

idl> dir=sot_filelist(‘SP4D','20061124_010000','20061124_032000') ; => extract SP4D data directory between start_time and end_time

idl>file=findfile(‘./SP4D20070406*.fits’)idl>sp_prep,file,index,ldata,/display,outdir=‘/hinode/apr0607/’File = array of file pathnames for one operation.Index, ldata= return index(header) and data(*,*,4).Input file size: Ex: Filename: SP4D20070302_161839.2.fitsDATA INT = Array[112, 512, 2, 4]Calibrated data:ex: SP4D20070302_161839.2C.fitsDATA INT = Array[112, 512, 4]

Inversion of Stokes signal to vector magnetic field

• Community inversion codes:http://www.hao.ucar.edu/public/research/cic/index.html(1) LILIA v3.1(2) MELANIE v2.01

(3) DIANNE v0.9 (BETA!)Wavelength = ((findgen (112) - index(0).crpix1) * abs (index(0).cdelt1) + index(0).crval1)

Co-ordinate of the

reference pixel

Spectral res.

Wavelength of the reference pixel

http://darts.isas.jaxa.jp/hinode

http://sot.lmsal.com/sot-data

http://kurasuta.cfa.harvard.edu/VSO

THREE DATA ARCHIVES

Thank You

SP-Mapping mode

Time per position 4.8 sec 1-rot. Wave plate

FOV along slit 32”

Sampling along slit 0.16”

Slit-scan sampling 0.16”

S/N 580

Time for map area 18 sec for 1.6” wide

Time per position Many rot. – upto 8 rot.

FOV along slit 164”

Sampling along slit 0.16”

Slit scan sampling 0.16”

S/N >10³

Deep Magnetogram

Dynamic Mode

Spectro-Polarimeter Mapping mode

Normal map

Time per position 4.8 sec 3-rot. of wave plate

FOV along slit 164”

Sampling along slit 0.16”

Slit-scan sampling 0.16”

S/N 10³

Time for map area 50 sec for 1.6” wide

83 min. for 160” wide

Time per position 3.2 sec 1 rot. for Ist slit pos. and IInd for another slit pos.

FOV along slit 164”

Sampling along slit 0.32”

Slit scan sampling 0.32”

S/N 10³

Time for map area 18 sec. for 1.6” wide

30 min for 160” wide

Fast Map

TF Bubble in the FOV

TF6

TF5~1A

Tunable elements which carries the bubbles are identified.

Tunable filter bubble

big bubble

TF7Small bubbles