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Auroral Particles and Imagery
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DMSP SSJ/4 Software
for APL formatted data files

Last Updated 6 October 2000

The software available from this page is not maintained as operational code. Samples of routines are presented here to instruct the user on the reading of the APL formatted files. Basically, we supply you with the data and the routines to read the data, but you will have to supply the routines to plot and display the data. Since this code is not being supported, some routines may have to be changed by the user.

NO WARRANTY:
The software routines are provided as is and without any expressed or implied warranties whatsoever. All warranties including, but not limited to, performance, merchantability or fitness for a particular purpose are hereby disclaimed. You assume the entire risk and liability of using the software to include use in compliance with any third party rights. You are advised to test the software thoroughly before relying on it. In no event shall JHU/APL be held responsible for any direct, indirect, consequential or inconsequential damages or lost profits arising out of the use or inability to use the software.

The software files available for downloading are:

  • readdmsp - will print Satellite Number, SecsOfDay, Time, Year, DayofYear, geographic latitude and geographic longitude for selected data records. To run this you will also need the files n_table.dat and s_table.dat .

  • readj4cnts - will print out time, position and j4 counts (electron then ion). This has the capability of swapping bytes for it to run on INTEL based machines. To accomplish this, uncomment the lines as explained in the comment section at the beginning of the program.

  • read_cal_ssj4 - will print out time, position and j4 calibrated data (electron then ion). This has the capability of swapping bytes for it to run on INTEL based machines. To accomplish this, uncomment the lines as explained in the comment section at the beginning of the program. WIth this software, you will also need to copy the files ssj_factors.dat and j4_yearly_corrections.dat.

     NOTE:  readdmsp and readj4cnts both print to stdout.

  • spect_idl.tar.gz - IDL source code for viewing j4 spectrograms. The files have been tarred and zipped.

To download any of these software files, press the keyboard's  SHIFT  Key while clicking on the name below.

The Files listed below are data files required for the IDL software.


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