Update 24 June

Three of the 16 LAT towers are now powered on.  Everything looks good so far!  The power-up sequence will continue for most of the rest of today.  LAT team members are very excited about this, monitoring the progress in the Mission Operations Center, at the LAT Instrument Science Operations Center at SLAC, and around the world at their home institutions.  The GBM data processing unit continues to function as expected, and the first detector will be powered on later in the day.

I’ll post another update tonight.