Events during Engineering Runs and other times of stable instruments before the start of O3

No automatic alerts will be sent except as non-astrophysical tests

If a trigger is generated and it appears to be during a time when the instruments are operating well enough to allow an astrophysical interpretation, we will manually check the data for validity

If it is of significant interest, we will send out a GCN, with followup for e.g., skymaps if indicated