Assignment to make record section plot of earthquake

Data from a M=3.8 Julian event of March 30, 2002 are contained in
 
/net/chip/227C/JULIAN/9774569                  (Suns)
~shearer/PROG/CLASS/227C/SAC//JULIAN/9774569   (Macs)

Use the SAC program to read in and plot examples of these data.
Turn in hardcopy plots of the following:

(1) Vertical component data from the Anza Network stations (using
  plot1 to show all the traces in the same plot).

(2) A record section of selected stations along a profile extending
  to the north several hundred km.  You can use the stations that
  I used for the Anza earthquake example except that you may want
  to change some of the closest stations.

(3) Repeat (2) using a reduction velocity of 8 km/s and changing
  the time window to zoom in on the Pn phase.  Experiment with
  different filtering options to see what works best to resolve
  Pn.  Turn in your best plot, together with the filter parameters
  that you used.  Note:  I have not looked at these data yet and
  have no idea whether Pn is visible!