FLAMES/Giraffe: Reference frames

FLAMES_GIRAFFE reference frames

Calibrations are taken for MEDUSA, IFU, and ARGUS settings, according to the FLAMES calibration plan. See the calibration plan.

A number of daily Health Check data are defined:

• a set of 5 BIAS: every day
• a set of 6 exposures of the simultaneous calibration fibre (SIMLAMP,TAL): every day
• a set of Medusa and IFU flats and arclamps every 3 days, of Argus data every 7 days
• a sequence of 3 DARKs and a set of flats with increasing expores times: every month

For each setting used for science during the night, a sequence of flats and arclamp exposures is taken during daytime.

Here you find the FLAMES_GIRAFFE reference frames. Check out for the FLAMES_UVES data here.

Detector frames

There are daily BIAS frames taken in the standard readout mode (called "Normal"). Also there is the "Fast" read mode and the "Slow" read mode, both offered for special programmes in Visitor Mode only.

DARKs are taken about monthly, to monitor the dark current which is always very low.

IMAGE FLATs are taken about monthly, for the standard detector monitoring.

Detector	BIAS (good)	BIAS (not so good)	DARK	IMAGE FLAT