Beam was used yesterday. Mostly idle overnight. Looks like a plasma mode change happened at around 19:00 yesterday. It happens. Or perhaps just an artifact again. Shortly after, beam was moved to 87Rb, which is where it is right now. Once again, another milestone first at OLIS: 87Rb from the MWS.

Natural abundance of Rb: Rb-85   ( 72.165% ) Rb-87  ( 27.835% )

Later... Beam switched back to 85Rb.