cover and excellent seeing (for the imaging).
Unlike the nights lost to weather in classical
observing, we obtained our data with the
required sensitivity despite uncooperative
weather over Maunakea.
Results
The Gemini North imaging and spectroscop-
ic observations revealed that FRB 121102
was hosted in a low-metallicity star-forming
dwarf galaxy at a redshift of z = 0.19273(