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Francisco Paz Chinchón


Precal

Run nightly calibrations over domeflats and bias. Beware the code automatically discards first exposure of each filetype of the night, for safety. The nightly processing should run periodically, to make generation of supercals smoother.

Time domain: the table `FLAT_QA` has some useful quantities to create time series and explore stability of nights


Supercal

Assessments

  1. Set of codes to assess domeflats using Wavelet in 2D 
    1. Repository: https://github.com/paztronomer/domeflat_calibrations
  2. Time domain codes
    1. Repository: https://github.com/paztronomer/sandbox_timedomain
    2. Repository: https://github.com/paztronomer/structure_timedomain
  • DBSCAN
  • use matplotlib for sequential display of a lot of footprint images

Visual inspection of individual domeflats binned focal plane images (binned_fp filetype)

Whole CCD global statistics

Remember to delete precal runs after creating the Supercal, to save disk space.


Skytemplates

For a step-by-step, queries to select DB products, and discussion, refer to the below repository.

Repository and documentation: https://github.com/paztronomer/skytemplates_build

Skytemplates generation for u-band

For the step-by-step, codes, and discussion, refer to the below repository.

Repository and documentation: https://github.com/paztronomer/uband_endeavor

visual inspection of each full-sized CCD must be done, looking for structures

If needs more data: NOAO archive for DECam

Some investigation for the wedge appearing in skytemplates

Repository: https://github.com/paztronomer/skytemplates_wedge_mask


BPM

Use ~50 g-band exposures, following the step-by-step described in the following repository.

Repository and documentation: https://github.com/paztronomer/bpm_calibrations

Dilation of tapebumps masks

  • it is a good guess to use same binary-dilation (numpy) number of pixels than the wide of the kernel used for assess profiles.
  • Techniques I've used for detecting the mask regions to be enlarged:
    • median images at different levels of counts
    • segmentation using Otsu threshold

Add mask to BPM

Repository: https://github.com/paztronomer/bpm_addmask

Translate from a set of bit-definitions to another

Repository and documentation: https://github.com/paztronomer/bpm_translation

Check masks

Repository: https://github.com/paztronomer/mask_check


Calibrations for Y4 onwards

Visit: Calibration products (Y4 onwards)

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