(b) Get EUVI Summary

Let us get a summary of EUVI datafiles. The IDL procedure EUVI_SUMMARY reads the EUVI summary file (generated by the SECCHI software) and extracts an observation summary (filenames, times, filter, wavelength, exposure time, image size, etc.) according to the selected observing time interval specified by DATE, TSTART, TEND, INSTR, SPACECRAFT, TYPE and returns a structure DATASUM and string array DATAFILES. Beacon data are included in the summary.

Let us check the EUVI datafiles of spacecraft A on May 9, 2007, 20-21 UT hours.
The commands for this example in IDL are:

IDL>
datadir='$secchi/lz/L0/' ;disk or data archive
date ='20070509' ;'YYYYMMDD' date of observation
tstart ='200000' ;'HHMMSS' start time interval for image selection
tend ='210000' ;'HHMMSS' end time interval for image selection
type ='img' ;'img','cal', 'seq'
instr ='euvi' ;instrument
sc ='a' ;spacecraft "a" or 'b'
euvi_summary,datadir,date,tstart,tend,type,instr,sc,datasum,datafiles


The output on the screen looks like this:



The output is the structure DATASUM and the string array DATAFILES.
The structure DATASUM contains the following tags:
help,datasum,/str



The string array DATAFILES contains the names of the datafiles :
help,datafiles
for i=0,107 do print,datafiles(i)