While Sheila and Jenne were commissioning the DRMI ASC today I used the Hartmanns to check the spot positions of the CO2 lasers on the ITMs.

Fortuitously, both CO2 lasers were turned off for an hour this morning during maintenance. I used the time while they were both heating up, with nominal ring heater and no IFO beam. First plot is ITMX today, second is ITMY today. ITMX looks pretty funky, but we know there is some clipping of the Hartmann beam.

I also made Hartmann images of a time in April when the CO2s were turned off in full lock: 3rd plot is ITMX in April, 4th plot is ITMY in April. The spot positions look very similar between April and now, which is good.

Looking back to after we pico'd the CO2s in December, however, looks very different, see plots 1 and 3 of TVo's comment here. Many things could have changed between now and then though.