The value in the EXPTIME FITS header in output is currently 2*NREADS (where NREADS is another header). This should be `1.98005 * NREADS` (for the flight sequencer [hemiola.fpe](https://github.com/TESScience/tessfpe/blob/master/tessfpe/data/files/sequencer/Hemiola.fpe)).
The value in the EXPTIME FITS header in output is currently 2*NREADS (where NREADS is another header).
This should be
1.98005 * NREADS(for the flight sequencer hemiola.fpe).