HTTM should throw a warning if the FITs keyword `READNOIS` associated with readout noise that SPyFFI writes is present. SPyFFI Should not write this header if it does not simulate readout noise.
HTTM should throw a warning if the FITs keyword
READNOISassociated with readout noise that SPyFFI writes is present.SPyFFI Should not write this header if it does not simulate readout noise.