File containing some commonly encountered scanning patterns. More...

Functions
Union[np.ndarray, np.ndarray]	gateau.scan_patterns.stare (np.ndarray times, Union[float, np.ndarray] az0, Union[float, np.ndarray] el0)
	Get scanning pattern for a stare. More...

Union[np.ndarray, np.ndarray]	gateau.scan_patterns.chop (np.ndarray times, Union[float, np.ndarray] az0, Union[float, np.ndarray] el0, float duty_cycle, float throw)
	Get scanning pattern for a sky chopper, alternating between two points on sky. More...

Union[np.ndarray, np.ndarray]	gateau.scan_patterns.daisy (np.ndarray times, Union[float, np.ndarray] az0, Union[float, np.ndarray] el0, float r_petal, float period_cycle, float period_petal)

def	gateau.scan_patterns.check_size (times, az0, el0)
	Check size of az0 and el0 values. More...

Detailed Description

File containing some commonly encountered scanning patterns.

Function Documentation

def gateau.scan_patterns.check_size	(	times,
		az0,
		el0
	)

Check size of az0 and el0 values.

If az0 and/or el0 are float, resizes to times array.

Union[np.ndarray, np.ndarray] gateau.scan_patterns.chop	(	np.ndarray	times,
		Union[float, np.ndarray]	az0,
		Union[float, np.ndarray]	el0,
		float	duty_cycle,
		float	throw
	)

Get scanning pattern for a sky chopper, alternating between two points on sky.

Currently, only chopping in azimuth direction is supported.

Parameters

times	Numpy array containing times of scan. Units: seconds.
az0	Azimuth co-ordinate of the reference chop position. Units: deg.
el0	Elevation co-ordinate to stare at. Units: deg.
duty_cycle	Frequency of a full revolution of the chopper blade. Units: Hz.
throw	Angular distance between reference chop and other chop. Units: deg.

Union[np.ndarray, np.ndarray] gateau.scan_patterns.stare	(	np.ndarray	times,
		Union[float, np.ndarray]	az0,
		Union[float, np.ndarray]	el0
	)

Get scanning pattern for a stare.

Parameters

times	Numpy array containing times of scan.
az0	Azimuth co-ordinate to stare at.
el0	Elevation co-ordinate to stare at.