SOT SolarSoftWare SSW Overview

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SOT SolarSoftWare (SSW) Overview

• Tom Berger, Sam Freeland, Greg Slater
• LMSAL
• SOT 17 Meeting
• NOAJ
• April 17-20, 2006

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What is SSW? http//www.lmsal.com/solarsoft/
ssw_whatitis.html

• The SolarSoft system is a set of integrated
  software libraries, data bases, and system
  utilities which provide a common programming and
  data analysis environment for Solar Physics.
• The SolarSoftWare (SSW) system is built from
  Yohkoh, SOHO, TRACE, RHESSI, and Astronomy
  libraries and draws upon contributions from many
  members of those projects. Thousands of routines
  now exist for all aspects of solar data analysis.
• It is primarily an IDL based system
• Some instrument teams integrate executables
  written in other languages.
• The SSW environment provides a consistent look
  and feel at widely distributed co-investigator
  institutions to facilitate data exchange and to
  stimulate coordinated analysis.
• SSW includes extensive heliographic mapping
  capabilities for inter-mission alignment. SOT -
  RHESSI - TRACE comparisons are greatly
  simplified.
• http//orpheus.nascom.nasa.gov/zarro/idl/maps.htm
  l

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Proposed SSW Tree
kokuten.lmsal.com/archive/software/ssw/solarb
solarb
eis
xrt
sot
setup
doc
idl
data
bin
ana
Setup routines
Documentation
C, C, FORTRAN execs
Sample data
IDL codes
ANA codes
ct
dd
sp
display
util
fg
Correlation Tracker
Utility codes
Diagnostic data
Image and movie viewers
Spectrograph
Filtergraph
TBD
stokes
seis
fgram
mgram
dgram
Helioseismology codes
Dopplergram codes
Filtergram codes
Magnetogram codes
Stokes vector codes
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Utility codes

• Routines in development
• read_sot.pro
• write_sot.pro
• sot_cat.pro
• sot_cat2data.pro
• sot_data_tool.pro
• sot_prep.pro
• Routines TBD
• sot_wave2point.pro
• sot_transmission.pro
• Many others

Basic FITS file read and write capabilities.
Database (catalog) access and data return.
Database access GUI from IDL command line
Image and spectra Level 0 ? Level 1 calibration
(bad pixel correct, dark subtract, flat-field,
etc).
Inter-instrument corrections to pointing for each
wavelength.
Filter transmission profiles
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Filtergraph routines

• Magnetogram codes
• Filtergraph polarization sensitivity calibration
  sot_nfi_getx.pro
• NFI magnetogram code sot_fgmag.pro
• Dopplergram codes
• Stokes vector codes
• Image analysis codes
• Image segmentation and object definition (bright
  points, pores, penumbral filaments, etc.)
  sot_image_segment.pro
• Wavelet denoise and spatial filter
  sot_wavelet_denoise.pro
• Brightness temperature from (R,G,B) continuum
  images sot_bright_temp.pro
• Times series analysis codes
• Inter-wavelength and inter-instrument (XRT, EIS)
  align and scale sot_align.pro
• Can also use D. Zarros mapping routines for this
  (http//orpheus.nascom.nasa.gov/zarro/idl/maps.ht
  ml)
• Image distortion removal (destretching)
  sot_destretch.pro
• (x, y, t) Fourier filter (p-mode filter)
  sot_3dfft.pro
• Correlation tracking sot_correlation_track.pro
• Object tracking sot_track_object.pro
• Corkflow mapping sot_corkflow.pro

These routines exist in prototype form (La Palma
data analysis tasks)
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Display codes

• Image viewer
• Basic requirements
• Load up to 6 images into a single display GUI
  multi-layer model (gimp, Illustrator).
• Images may be different sizes, formats, etc.
  (e.g. FG, SP map overlay).
• Real-time adjustment of color and transparency
  for mult-image overlay views.
• Automatic adjustment for image pointing
  differences.
• Standard image browsing functions
• Pan
• Zoom
• Scale
• Rotate
• Crop
• Plot line profile
• Annotate
• Overlay heliographic grids.
• Export processed images back to IDL session.
• Export to Postscript printer, EPS, TIFF, JPEG,
  PNG, etc.
• Protocol

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Image Viewer Example
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Display codes (cont.)

• Movie viewer
• Basic requirements
• Movie creation assemble clips from URLs from
  database tool or passed from IDL session.
• Playback real-time streaming from disk.
• Simultaneous multiple movie playback.
• Individual clips from different sot wavelengths
  e.g. G-band clip, Magnetogram clip, Dopplergram
  clip, H-alpha clip, etc.
• Timeline view for temporal alignment of clips
  from overlapping time spans.
• Adjust color and transparency for multiple clip
  overlays.
• Standard video transport controls play, pause,
  FF, RW, frame-step, jog/shuttle, loop.
• Real-time pan, zoom, ROI crop, scale, color
  adjust.
• UTC display for time annotations.
• Export to MPEG4, QuickTime, etc.
• Export any frame to Postscript printer, EPS,
  TIFF, JPEG, PNG, etc.

G-band
Ca II H-line
Stokes-V Magnetogram
H-alpha wing
Na ID Dopplergram
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Sample Movie Viewer FinalCut Pro
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Object-oriented model vs. traditional model

• Object oriented coding
• What is it?
• Observables become objects. E.g. image and
  spectra are different objects in code space.
• Pre-defined methods operate on objects. A
  method is just a subroutine that is specifically
  assigned to an object.
• IDLgt image OBJ_NEW(sot_fg_data,filename
  URL of some-gband-image-file)
• IDLgt spectra OBJ_NEW(sot_sp_data,filename
  URL of some-SP-spectral-file)
• IDLgt calibrated_image image -gt prep, /despike
• IDLgt calibrated_spectra spectra -gt prep,
  /slit_straighten
• In this case, prep is a different subroutine
  for each object, but user doesnt have to know
  this.
• Compare to traditional syntax
• IDLgt sot_prep, index, image, index_out,
  image_out, /BFI,darkdir/data3/solarb/sot/fg/fgda
  rks, flatdir/data3/
• Similarly,
• IDLgt calibrated_image -gt display
• IDLgt spectra -gt prep -gt display
• Calls up pre-defined image display routines that
  act differently for images or spectra.
• Or
• IDLgt calibrated_image -gt print, /EPS, filename
  ready_for_latex.eps
• IDLgt calibrated_image -gt print, /JPEG, filename
  my_calibrated_image.jpeg
• Calls predefined printing/image output routine.

http//orpheus.nascom.nasa.gov/zarro/idl/objects/
objects.html