Reduction.WCS Submodule¶
Reduction tools directly related to world cooridnate system corrections.
Functions
rotate(wcs, theta[, keep_center]) |
Rotate WCS coordinates to new orientation given by theta. |
xcor_crpix3(fits_list[, x_margin, y_margin]) |
Get relative offsets in wavelength axis by cross-correlating sky spectra. |
xcor_2d(hdu0_in, hdu1_in[, crval, crpix, …]) |
Perform 2D cross correlation to image HDUs and returns the relative shifts. |
xcor_crpix12(fits_in, fits_ref[, wmask, …]) |
Use cross-correlation to measure the values of CRPIX1/2 and CRVAL1/2. |
fit_crpix12(fits_in, crval1, crval2[, …]) |
Fit the PSF of a known source to get crpix1/2 and crval1/2. |