Subtract Sky OFFSET Frames

Functions
cpl_frameset *	xsh_subtract_sky_offset (cpl_frameset *object_raws, cpl_frameset *sky_raws, int nraws, xsh_instrument *instrument)

Detailed Description

Function ...

Function Documentation

xsh_subtract_sky_offset()

cpl_frameset * xsh_subtract_sky_offset	(	cpl_frameset *	object_raws,
		cpl_frameset *	sky_raws,
		int	nraws,
		xsh_instrument *	instrument
	)

Subtract SKY frames from OBJECT frames. OBJECT and SKY frames are first ordered by increasing observation date (Key Word DATE-OBS).

Parameters

object_raws	Raw OBJECT frames frameset
sky_raws	Raw SKY frames frameset
nraws	Number of OBJECT frames (equal nb of SKY frames)
instrument	Pointer to instrument structure

Returns

Frameset of OBJECT-SKY frames

Definition at line 81 of file xsh_subtract_sky_offset.c.

References check, instrument, XSH_ASSURE_NOT_NULL, xsh_free_frameset(), xsh_instrument_arm_tostring(), xsh_msg, xsh_msg_dbg_high, xsh_order_frameset_by_date(), and xsh_pre_frame_subtract().

Referenced by xsh_respon_slit_offset(), xsh_scired_ifu_offset(), and xsh_scired_slit_offset().