Imager Level 1

Liger and IRIS Level 1 (L1) imager data are 2D electron rate (e-/s) maps. They are generated by the stage 0 pipeline, which handles a subset of detector-level calibrations and fits the UTR slopes to produce rate maps with computed uncertainties in e-/s. They have not been calibrated for dark, flat, sky subtraction, etc.

Extensions

#	Name	HDU Type	Data Type	Dimensions	Units	Description
1	SCI	Image	Float32	Ny x Nx	e-/s	Rate map.
2	ERR	Image	Float32	Ny x Nx	e-/s	Rate map error
3	DQ	Image	Uint32	Ny x Nx	N/A	Data quality (see DQ flags).
4	SUBARR_MAP	Image	Int8	Ny x Nx	N/A	Specifies subarray ID for each pixel.