Fix BERV unit in FITS header comment
BERV (bc_vel) from barycorrpy is in m/s, not km/s
See the barycorrpy documentation here https://github.com/shbhuk/barycorrpy/blob/master/barycorrpy/barycorrpy.py line 100
That FITS comment is then wrong in the FITS files in prod, it will be corrected if you re-run the prod. Sorry about the mistake.