EIT Software Examples
a) Useful routines (Jeff's top 10):
EIT_CATRD (and EIT_XCAT = widget form) -
This function reads the daily QKL catalogs or the single Level Zero catalog.
SYNTAX: list = eit_catrd(in_date, group=group, interactive=interactive,
date, long=long, raw=raw, yester=yester, lz=lz,
no_next=no_next, short=short, input_file=input_file,
records=records, filename=filename, tai=tai,
start_date=start_date,stop_date=stop_date,
object=object,wave=wave,filter=filter,nx=nx,ny=ny,xbin=xbin,
ybin=ybin,timerange=timerange)
EIT_DISPLAY -
This function will display EIT movies (IDL Save Sets) and
EIT images (FITS files) using eit$\_$movie and eit$\_$image
respectively.
EIT_DUMP - produce postscript or gif files
EIT_FILE2PATH -
translate eit file name to "standard path" on local system
(vms<->unix, handle collapsed or yyyy/mm/dd trees)
EIT_FXPAR - Obtain the value of a parameter in a FITS header
EIT_PREP -
A preliminary version of a processing routine for analyzing
EIT images. Presently this version reads in the named FITS
image and produces a background subtracted, degridded and
flat-fielded output array or FITS file. In the future this
routine will also vignette correct.
MK_EIT_L1 -
Create Level 1 FITS files via eit_prep. Demo program to show usage.
Works on 2D/3D conbinations.
READ_EIT - read eit image(s) into 2D or 3D array and
map header->structure
MOVIE_MAKER -
This procedure will create EIT movies (IDL Save Sets).
The user interactively selects a series of FITS images,
scales them, and saves them.
EIT_FLUX and EIT_TEMP -
Specify Emission ratio (e.g. 195/171) ==> compute Te
Specify Te + filter + DEM ==> compute DN
Specify Te + filter + DN ==> compute DEM
b) Other "eit specific"
read_eit.pro ; read EIT files into IDL structure array and data cube
; (if no data, then only read headers for speed)
eit_file2path.pro ; translate file names to local (online names)
lasteit ; display most recent NN images for selected waves
eit_colors.pro ; load selected color table (via wavelength)
eit_catrds.pro ; span days for 'catrd_daily' and concatenate output
; (include concatenation of /raw structures)
misc...
eit_fill_cube ; fill images in cube from nearest neighbors
(ex: try: lasteit,info,data,10,/w304,/fill)
eit_data_scale ; "standard" 1 line scaling
eit_qklcat ; ascii catalog of all online images
c) "generic"
get_infox.pro ; IDL structure->string array (1 line per structure)
; permits user flexibility in output tags and order
str2cols.pro ; string array -> table via fast algorithm
; (example, catrd_daily string array -> columns)
utplot,tim2dset, ; tons (literally) tools to act upon the IDL
; structures returned by read_eit
xstepper.pro ; data cube reviewer (sxt,spartan,eit,lasco,...)
; includes zoom, pixmap, etc, options.
------- demo "problem" - read online 171 images taken between 1-may and 5-may
IDL> dailys=eit_catrds('1-may-96','5-may-96',file=file) ; read daily cats
IDL> fullnames=eit_file2path(file,exist,ecnt) ; convert names->online
IDL> found=where(exist) ; (only those found locally)
IDL> read_eit, fullnames(found), eit0 ; read FITS headers
; and map ->IDL struct
IDL> ss=where(eit0.wavelnth eq 171 and $ ; apply some filter
eit0.naxis1 eq 1024 and eit0.naxis2 eq 1024) ; (future widget app.)
IDL> wanted=found(ss) ; filtered AND online
IDL> read_eit, fullnames(wanted), eit1, data ; read images-> cube
******** some "generic" routines shown acting on the EIT variables above ****
1) get_infox - provide user defined ascii summary of an IDL structure
|--user selected list---|
IDL> array=get_infox(eit1,'exptime,wavelnth,filter',/fmt_tim,/more)
START TIME EXPTIME WAVELNTH FILTER
1-MAY-96 01:01:48 5.00 00171 Clear
1-MAY-96 09:54:10 5.00 00171 Clear
1-MAY-96 18:32:56 5.00 00171 Clear
2-MAY-96 11:20:06 5.00 00171 Clear
(--- etc ---)
5-MAY-96 08:52:40 5.00 00171 Clear
5-MAY-96 16:18:15 5.00 00171 Clear
2) str2cols - break a string array into columns (eit catalog for example)
IDL> cattable=str2cols(dailys) & help, cattable
CATTABLE STRING = Array(8, 58)
IDL> more, cattable(6,wanted) + cattable(1,wanted) + cattable(0,wanted)
EFR19960501.010148 01:01:48 1996-May-01
EFR19960501.095410 09:54:10 1996-May-01
EFR19960501.183256 18:32:56 1996-May-01
EFR19960502.112006 11:20:06 1996-May-02
(--- etc ---)
EFR19960505.085240 08:52:40 1996-May-05
EFR19960505.161815 16:18:15 1996-May-05
3) utplot, outplot, evt_grid, plot_goes, tim2dset, sel_timrange, etc.
correlate EIT instrument events or other SOHO/YOHKOH parameters
select structures, plot structure tags and databases against UT
RE: SSW/EIT remote installations
Cron job was installed on penumbra this week to generate one compressed
tar file per SSW instrument or branch
(see $SSW/offline/swminat/tar)
http://www.space.lockheed.com/eit/ssw_install.html
FORM interface - user selects SSW instruments and a customized
installation script is generated - user executes on local machine
to install SSW.
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