Worksheet 1 - Finding EIS data and downloading#
The sections below give basic information about finding and downloading EIS data using three different methods. New users should try all three as each has its own strengths.
European archive (Oslo)#
The archive is accessed by going to http://sdc.uio.no
.
A basic search by date is done by clicking on the EIS box, and entering times in EPOCH_START and EPOCH_END.
Searches using EIS-specific keywords can be done by clicking on the EIS button under ‘More search criteria’. A useful option is to search on study acronym (E_STUD_ACR).
Multiple groups of files are packaged as gzipped tar files. They should be downloaded into a directory such as /data/hinode. They unpack into directories such as eis/level0/2007/11/01.
Exercise#
- Find out how many EIS studies have been run during the 3 months from 1-Jul-2007 that use the 2” slit, contain the Ni XVII 249.18 emission line, and were designed by Peter Young.
- Which studies (specify the study acronym, STUD_ACR) satisfy the conditions above?
MSSL archive#
The MSSL archive has two entry points:Thumbnail images are available for each file, and the files can be downloaded.
Exercise#
- Use the archive to find list of files obtained on 9-Dec-2006.
- Find the file beginning at 11:30 UT and view thumbnails.
From within eis_cat#
eis_cat is an IDL widget-based routine for browsing the EIS catalogue. To call it, do:IDL> eis_cat
(Note: if the catalogue seems to be empty, then try typing "s=fix_zdbase(/eis)" before you call eis_cat.)
Specify a date range, or use one of the search limiters to give a list of EIS files. Each file can then be downloaded by clicking on the ‘Download’ button on the GUI.
Exercise#
- Search data between 09-Dec-2006 10:00:00 - 09-Dec-2006 16:00:00
- Search data by study Acronym, e.g. COMSCI_AR3
- Using ‘Select studies graphically’, find out how many EIS studies have been run at the north pole during the 3 months from 1-Jul-2007.
- Download level-0 data: eis_l0_20061209_113031.fits.gz