create_mrt_line_kernel

acstools.utils_findsat_mrt.create_mrt_line_kernel(width, sigma, outfile=None, shape=(1024, 2048), plot=False, theta=None, processes=1)

Creates a model signal MRT signal of a line of specified width.

The trails can be blurred by a simple Gaussian model PSF. More accurate PSF convolution using an input PSF model will be incorporated in the future. These kernels are used for detection of real linear signals in the MRT of imaging data.

Parameters:

widthint

Width of the line. Intensity is constant over this width.

sigmafloat

Gaussian sigma of the PSF. This is NOT FWHM.

outfilestr or None, optional

Location to save an output fits file of the kernel. The default is None. If a filename is given and it exists, it will be overwritten.

sztuple of int, optional

Size of the image on which to place the line. The default is (1024, 2048).

plotbool, optional

Flag to plot the original image, MRT, and kernel cutout.

thetaarray or None, optional

Set of angles in degrees at which to calculate the MRT, default is None, which defaults to np.arange(0, 180, 0.5).

processes: int, optional

Number of processes to use when calculating MRT. Default is 1 (no multi-processing).

Returns:

kernelndarray

The resulting kernel.