... 2013-06-27: A new instrument block was obtained this week. As a result of an important update to the camera firmware while it was at Princeton Instruments the orientation in images has now changed. ... Completed ion pump swap earlier in the week and vacuum pumpdown. ... 2014-06-23: Started to warm the instrument for a vacuum serving (ion pump change out) of the instrument. ... 2015-03-18: The instrument vacuum was soft as evidenced by the ion pump controller and independent MKS vacuum guage. ...