GratingSpectrum#
- class pygrating.pygrating.GratingSpectrum(image, YPIX, YPIX_bkg, xpix=None, cross_disp_buffer=25)#
Class to get spectrum from UVIT Grating image
- calculate_xpix(plot=False)#
Calculate the x pixel of the 0th order
- Returns
xpix – Moffat fitted x value of the 0th order [pix]
- Return type
float
- get_calibrated_spectrum(dict_cal, plot=False)#
Flux and waveength calibration
- Parameters
dict_cal (dict) – Calibration parameters of the grating and the order
- Returns
spectrum (Spectrum1D) – Flux calibrated spectrum in erg/s/cm2/A. Wavelength is in Angstrom
spectrum_cps (Spectrum1D) – Spectrum in counts/s/A. Wavelength is in Angstrom
spectrum_ct (Spectrum1D) – Spectrum in counts/pix. Wavelength is in pixels
- plot()#
Plot flux calibrated spectra (order -1 and -2)
- plot_all(save=False, folder_path='')#
Plot the 2d spectrum, 1d spectrum, wavelength calibrated count spectra and flux calibrated spectra.
- Returns
fig (Figure) – matplotlib.figure.Figure
ax (ndarray) – Array of matplotlib.axes._subplots.AxesSubplot
- save_all(folder_path='', overwrite=False)#
Save spectra if available.
- Parameters
folder_path (str) – Folder in which to save the files. Default is working directory.