S-PLUS Filters Transmission Curve Calculator

Overview

This Python script calculates the transmission curves for S-PLUS filters and estimates the central wavelength using different methods along with the Full Width at Half Maximum (FWHM) and the Equivalent Width (or at least a variation of that). It offers various options to generate different types of output products.

• Calculate transmission curves both from the lab and convoluted with the atmophere and instrument
• Estimate central wavelengths
• Generate a CSV file containing the values for central wavelengths and widths
• Create an HTML for the same table as in the CSV

Features

• Calculate the transmission curve for a given filter.
• Estimate the central wavelength and the width through different methods.
• Save plots of the filter.
• Save transmission curves in CSV format.
• Save central wavelengths in a CSV file (use with --save_central_wavelentghs).
• Display individual lab filters (use with --show_individual_filters).
• Show main plots (use with --show_plots).
• Save main plots (use with --save_plots).
• Configure logging level and activate debug mode.
• For help, use -h.

Usage

To run the script, use the following command:

python3 splus_filter_calculator.py [OPTIONS]

Options

• --work_dir [WORK_DIR]: Specify the working directory. (Default: Current working directory)

• --save_plots: Save several plots with the filtes.

• --save_central_wavelengths: Save the central wavelengths of the filters in a CSV file.

• --show_individual_filters: Show the individual filters. (Only activate when --save_csv_filters is used)

• --show_plots: Show the main plots.

• --loglevel [LOGLEVEL]: Set the log level. (Default: INFO)

• --debug: Activate debug mode.

Output Products

• When --save_plots is used, save the following plots:

Final curves of the S-PLUS filters.

• When --save_csv_filters is used, the script generates CSV files containing the convolved transmission curves of the filters.

• When --save_central_wavelengths is used, the script generates a CSV file containing central wavelengths calculated using four different methods.

• The script also creates an HTML report that can be loaded in a web browser. This HTML file contains a table with the same data as the central wavelengths CSV file.

License

This code is licensed under the GNU v3.0 License.

Author

Herpich F. R.

Acknowledgments

T80S Technical Team