HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.

Search:

[Advanced Search]



next up previous contents
Next: saoimage Up: Xselect Commands Previous: quit   Contents

(x)read

Enter datafiles by name


Read in up to 999 datafiles. In xseltcl and ixselect the command name is xread to avoid conflict with a native Tcl command. 

xsel >  read <readmode> <infiles> <hkfiles> <expand>


xsel >  read e "file1 file2"


xsel >  read hk hkfiles="file1hk file2hk" expand=no

The possible values of readmode are:


  • e - reads in the Event (science) files.

  • hk - reads in the HK files. The variable expand tells whether they are in expanded form or not.

  • d - reads in the Event and HK files.


Two subsequent reads, with no clear in between, adds the new data files to the list of files already entered.

You do not have to be in the directory which contains the data. You will be prompted for the directories containing the Event and HK data.

Subsequent read commands add to the file list, unlike choose, where the list is automatically cleared before each choose.

Read will attempt to get the mission, instrument and datamode from the entered files. It is an error to enter files with different instruments, missions or datamodes.

It is often easier to respond to the prompts; see the example.

Examples:

a) 


xsel >  read e 
> Enter the Event file dir >[.] 
> Enter Event file list >[] ft930317_1753.1614G30470M.fits


b) 


xsel >  read hk  

> Give name[s] of FITS HK files >[] file1hk.fits file2hk.fits  
> Are the HK files in expanded form? >[] yes


This reads in the hk files file1hk.fits and file2hk.fits, and informs the program that they are in expanded form.

next up previous contents
Next: saoimage Up: Xselect Commands Previous: quit   Contents
HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public
Last modified: Tuesday, 10-Jan-2023 11:03:02 EST

HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.