SRCPLOT: Source plotting programs

SRCARC

SRCARC is a program for plotting the paths of sources using a cosine (?) projection. It may be run by typing

$ srcarc

from the DCL command prompt (here displayed as a dollar sign).

SRCPAC

SRCPAC is a point-and-click schedule generator for creating schedules for radio pointing, optical pointing and baseline solutions. It is started using:

$ srcpac

When you run SRCPAC, you will be asked a number of questions. The first is:

  Enter the type of schedule to generate [Baseline]:

This will determine the type of schedule that is generated. The options at present are BASELINE (for baseline solutions), POINT (for pointing solutions) and OPTICAL (for the prototype P.A.G.E.S project). Additional schedule types can be provided - contact the author.

You will then need to provide a catalogue. Catalogues must be kept in the AT$CAT area and have an extension .CAT. Depending on the shcedule type you selected, you will get a reasonable default:

             Enter the name of the catalogue [BSLN]:

The next question:

      Enter the shortest baseline in metres [76.53]:

is to plot vertical shadow limit lines. This is useful for avoiding antenna shadowing during calibrations, etc. The default is the for the current array.

                    Enter starting LST [05:30:50.2]:
            Grid lines plotted (AZ,EL,NONE) [AZ,EL]:
Graphics device/type (? to see list, default /NULL):

You can now select a local sidereal time to plot at (the default is the current LST), as well as what grid lines to plot and the PGPLOT device. Once answered, SRCPAC will load the sources from the catalogue and display them.

Now move your mouse into the PGPLOT window. By positioning the cursor, and pressing certain buttons or keys, you can perform different actions. Here is a summary;

                      ? or h  -  Display this text
                           l  -  List all the sources in the schedule
   <CR> or left mouse button  -  Add source to the schedule
    i or middle mouse button  -  Get information on the source
 <DEL> or right mouse button  -  Delete the source from the schedule
                           w  -  Save the schedule to AT$SCHED
                  <ESC> or q  -  Exit gracefully

For an example of SRCPAC use, see the documention on baseline solutions

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Original: Derek McKay (24-Jan-1995)
Modified: Derek McKay (5-Nov-1996)