Hannah, Stefan

We quickly looked at the pretty dramatic 5Mpc (10%) range drop that occurred at 10:07 UTC on 2015/06/05.

Attached are DARM spectra for 09:30 UTC (good reference, black) and 10:07 UTC (bad reference, red).
We did loo for coherence with MICH_OUT and SRCL_OUT at both good and bad times, but none showed any significant coherence in the 40Hz to 150Hz frequency band. Neither do ISS_PDA or ISS_PDB.