Stage 21

This stage bins the data into spectroscopic light curves.

PACMAN automatically uses the most recent Stage 20 run.

The user can set the wavelength bins in the pcf by giving a wavelength range and a number of bins, or alternatively provide user-defined bin edges.

When running S21 the user should get an output similar to this one:

Starting s21
Using Stage 20 input directory: /Users/sebastianzieba/Desktop/Projects/Observations/Hubble/GJ1214_13021_2026/stage20/s20_run_2026-06-15_10-28-16
Location of the new Stage 21 run directory: /Users/sebastianzieba/Desktop/Projects/Observations/Hubble/GJ1214_13021_2026/stage21/s21_run_2026-06-15_10-39-50
Number of bins: 11
chosen bin edges: [11350.         11810.90909091 12271.81818182 12732.72727273
13193.63636364 13654.54545455 14115.45454545 14576.36363636
15037.27272727 15498.18181818 15959.09090909 16420.        ]
Using spectroscopic flux files from: /Users/sebastianzieba/Desktop/Projects/Observations/Hubble/GJ1214_13021_2026/stage21/s21_run_2026-06-15_10-39-50/extracted_lc
Chosen directory with the spectroscopic flux files: /Users/sebastianzieba/Desktop/Projects/Observations/Hubble/GJ1214_13021_2026/stage21/s21_run_2026-06-15_10-39-50/extracted_lc
***************** Looping over Bins: 100%|####################| 11/11 [00:05<00:00,  2.03it/s]
Saved light curve(s) in /Users/sebastianzieba/Desktop/Projects/Observations/Hubble/GJ1214_13021_2026/stage21/s21_run_2026-06-15_10-39-50/extracted_sp
Saving Wavelength bin file
Saving Metadata
Finished s21

Below is a plot of a 1D spectrum with the bin edges from a user-chosen binning.

_images/spec_bins11.png

The spectroscopic light curves are saved in:

stage21/s21_run_*/extracted_sp

For each wavelength bin, PACMAN saves:

  • a spectroscopic light curve (speclc*.txt)

  • light-curve plots with uncertainties

  • individual visit light curves (if multiple visits exist)

The extracted_sp directory also contains:

  • wvl_table.dat: wavelength-bin information including:

    • bin number

    • central wavelength

    • half-width

    • lower wavelength edge

    • upper wavelength edge

  • figs/s21_lightcurves/spec_binsXX.png: overview plot showing the wavelength bins on the spectrum

The wavelength-bin figures are saved in:

stage21/s21_run_*/figs/s21_lightcurves