About TGIF

TGIF (TESS GRB/gravItational-wave kaFka listener) is a tool that listens to the General Circulars Network and calculates the overlap between reported events with large localizations (such as Fermi-GBM gamma-ray bursts, LIGO-Virgo-KAGRA gravitational-wave events, and IceCube neutrino alerts), and the concurrent TESS field of view. The calculation of the overlap fraction and the generation of the overlap skymap are described in Mo et al. 2023.

The per-pixel overlap files (in .npy format) can be read using numpy. The columns in the file are ????????, ?????????, ???????, ?????????, ???????. The skymaps are provided in celestial coordinates.

Light curves of all transients that occur in the TESS field of view are available at the TESS Transients website, maintained by Michael Fausnaugh (Texas Tech).

This project is maintained at the Massachusetts Institute of Technology. Funding for the TESS mission is provided by the NASA Explorer Program.