## Observation header

The relevant metadata have been exported from the Herschel-HIFI FITS to the CLASS observation header, namely in:

- the General section in R%HEAD%GEN%,
- the Position section in R%HEAD%POS%,
- the Spectroscopic section in R%HEAD%SPE%,
- the Frequency Switch section in R%HEAD%FSW% if relevant,
- a subset of the Calibration section in R%HEAD%CAL%, and
- the new Herschel-HIFI section in R%HEAD%HER%, where the metadata specific to this instrument can be found.

A raw overview of the whole header can be displayed with the command DUMP. Each section can be listed (name and values) with the command EXAMINE. We present in the section how these sections were filled from the Herschel-HIFI FITS headers.