TESS SIP

Demo tool for creating a Systematics-insensitive Periodogram (SIP) to detect long period rotation in NASA's TESS mission data.

What is SIP

SIP is a method of detrending telescope systematics simultaneously with calculating a Lomb-Scargle periodogram. You can read a more in-depth work of how SIP is used in NASA's Kepler/K2 data here.

Usage

This repository contains a demo notebook for how to calculate a SIP for NASA CVZ targets. To use this demo, you can either download and run the notebook, or re-write/copy the scripts in the notebook in your own tools.

Requirements

To run this demo you will need to have lightkurve installed, with a minimum version number of v2.0.

Acknowledgements

This tool uses the lightkurve tool to build a SIP, and relies on the RegressionCorrector and SparseDesignMatrix lightkurve tools. The SIP project was developed in part at the online.tess.science meeting, which took place globally in 2020 September. This research made use of Astropy a community-developed core Python package for Astronomy.