Attached is the plot of the NPRO output power since installation, or at least as far
back as the hour trend data permits.  As of 7 am on May 1st, it had 43498 accumulated
running hours.  In reality it's a little older because it underwent some acceptance
testing at the AEI prior to being shipped out for installation.

    One thing to note is that the output power calibration seems to be off as I would
have expected the starting output power to be closer to 1.8 W.  But this might be because
of the location of the photodiode and might reflect the power into the amplifier.

    The data was purged of drop outs caused by either data acquisition being off line
or the laser tripping.