Notes on trending

Temperature Trending

• On any FAST workstation other then juneau, log on as user lzp

• Change to the cfg/temp_trending directory and run temp_trend.ksh in the following fashion:

• temp_trend.ksh yyyy doy doy ; where the doy entries span the desired period (try using a maximum of 10 days. The script will find the necessary data files and place them in the /disks/juneau/scratch/LZPfiles/trend/temps/lzp directory. The data will be converted into *.dat files and placed in the /disks/juneau/scratch/LZPfiles/trend/temps/dat directory

• Running IDL

• Add /home/rauch/idl/pro/temp_trend to IDL path

  example:

  setenv IDL_PATH "${IDL_PATH}:+/home/rauch/idl/pro/temp_trend"

• While running idl, load temperature data into memory with idl routine store_temp_trend

  example:

  IDL>store_temp_trend, DATA="/disks/juneau/scratch/LZPfiles/trend/temps/dat"

• Now your ready to plot temperature data. The previous step has loaded numerous temperature telemetry points into memory. Execute the following IDL command to view what telemetry points are loaded into memory and choose one or more which you want to plot

  example:

  IDL>tplot_names

  You'll get output which looks like:

  1 pctemp1

  2 pctemp2

  3 mctemp1

  4 mctemp2

  5 flxtmp

  6 scltmp

  7 tcdf

  8 tiob

  9 cputemp

  10 axbtemp

  11 thv

  12 tsb

  13 bebtempa

  14 bebtempb

  15 bebtempc

  16 bebtempd

• You can now plot one or more points. There are numerous ways to do so. Here are some examples:

  single plot.........

  IDL>tplot,'bebtempa'

  or

  IDL>tplot,13

  multiple plots.......

  IDL>tplot,['pctemp1','pctemp2','mctemp1','mctemp2']

  or

  IDL>tplot, [1,2,3,4]

  there's also a prebuilt idl routine for plotting all of the temperature points.....

  IDL>plot_temp

In general, do the following:

idl> store_temp_trend, DATA="dir"

idl> tplot_names

idl> tplot, 'name1'

System 7 Voltage Trending

• Begin by referencing the FAST Generic Trending System (GTS) document found at:

http://sprg.ssl.berkeley.edu/~fastops/docs/gts.pdf

• Running as user lzp on any FAST workstation other then juneau, use the following configuration file:

~lzp/cfg/system7voltage/sys7p12.cfg

IDL Notes

Setting the y-axis limit

ylin,'VALUE',ymin,ymax