With some advice from Jamie, I've gotten the lock loss plotting script that is used at LHO working on our machines. The other night, I modified the ALSwatch.py script to log lockloss times. Tying it together, I've written a small wrapper script that grabs the last time from the lockloss log, and plots it. 

It is: scripts/LSC/LocklossData/lastlock.sh

Jamie's going to make an adjustment to the pydv codebase that will let me implement the auto y-scaling that we like. We also will need to get a feel for the right timing window, once we see what kind of delay in the ALSwatch script is typical. 

Here's an example of the output, with the window of [-10,+2] seconds from the logged GPS time: