Calibration frames (flats, darks, arcs) are fairly straightforward with IGRINS.
In the upper-right corner of the Data Taking Software you select the type, number, and exposure times.
The number of fowler-samples in the H and K exposure boxes will be the default for the calibration frames.
The default calibration frame settings are still being tested, but we recommend:
| Type | number | exposure time (s) | Number of Fowler Reads |
|---|---|---|---|
| Dark | 5 | 10 | XX |
| Flat off | 10 | 30 | XX |
Flat | 10 | 30 | XX |
| ThAr | 2 | 10 | XX |
UNe | 2 | 1.63 | XX |