PALFA (Arecibo Pulsar ALFA Survey)
was a radiosurvey
using the ALFA instrument on Arecibo Observatory,
recording data from 2004 to 2020 to locate pulsars.
As of 2021, 208 pulsars have been uncovered in the data.
It was also suitable for capturing fast radio bursts (FRBs)
and the data has been analyzed to identify such transients.