Steve Crawford

Wavelength solution

3

Given an uncalibrated data set, create a wavelength solution transforming from pixel space to wavelength

Subtract sky along one or more slits

1

- [ ] basic sky subtraction - [ ] Kelson, 2003, PASP 115 - [ ] Does ABBA-style sky subtraction in the NIR fall under basic imaging reduction?]

Normalize flat-field spectra with a continuum fit

1

- [ ] in the dispersion direction - [ ] along the slit

Rectify spectra to linear wavelength & spatial co-ordinates

4

After having a solution for an image, resample the image along a set of specified coordinates

Normalization of different mosaicked detectors

3

Normalization of differences in QE(lambda) between different mosaicked detectors.

Model & subtract scattered light between spectra

1

Be able to model the scattered light in the frame and then subtract off of the model. This could also be appropriate to move to ccdproc

Extract spectrum from 2D to 1D

1

- [ ] Box car extraction - [ ] Extraction along a trace - [ ] Horne extraction of one or more spectra - [ ] including 1D spectra from...

Add grating equation model

1

This should be added to astropy.models

CR rejection

4

single exposures with "protection" of spectroscopic features https://github.com/astropy/astroscrappy/pull/32

Collect line lists to use for wavelength calibration.

2

See https://github.com/PYPIT/PYPIT/tree/master/pypit/data for possible starting point. Collecting files from IRAF is another option.