Calibrations
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Wavelength calibration of GRACES is obtained using GCAL, the facility calibration unit. Flat-fielding is done with GCAL. Baseline calibrations will be obtained for all observations, both queue and classical. Note that GRACES calibrations are obtained during the day. There is no gain and it takes too much time to obtain them during nighttime.
- Baseline Calibrations
- GCAL
- Flat/Arc Configuration and Exposure Times
- Photometric Standards (GMOS page)
- Spectroscopic Standards (GMOS page)
- Lick Index Standards (GMOS page)
- Examples: ThAr arcs (with line wavelengths indicated), flats, biases
