This webpage hosts TESS light curve data for transients reported to the Transient Name Server (wis-tns.org) that were also observed in TESS full frame images.

We plan to update the data every 7 days, using the TICA High Level Science products on MAST.

All transients observed in a given sector are shown on a single page. To find a specific transient, you need to know which sector it was observed in. You can use a tool like tess-point to find which sector a given transient was observed in based on its RA and Dec.

There is also an API to download individual light curves, for example wget https://tess.mit.edu/public/tesstransients/light_curves/lc_2022sfe_cleaned. In this case, you only need to know the IAU designation of the transient (replace "2022sfe" with the IAU designation). For bulk downloads, the latest data is available on the the Bulk Downloads page. However, you may prefer to access the data, which is under version contol, through this github repo.

These light curves are processed automatically and we do not check their quality. In our experience, the data are reliable when the background/scattered light levels are low. However, there are very large systematic errors during periods of strong scattered light. Blended signals from variable stars and asteroids are also common. Please contact Michael Fausnaugh (faus@mit.edu) for questions about the pipeline or individual light curves.

Only transients discovered while TESS was observing are presented here. We plan to add prediscovery light curves from TESS in the future near future. A subset of confirmed supernovae per sector is also available.

The full README contains useful information about downloading data, format of the light cure files, and various caveats and helpful tips.

Please cite Fausnaugh et al. 2021 if you use these data.

  • All Astrophysical Transients (5596 total)
  • Supernovae (714 total)
  • README
  • Bulk Downloads
  • Transient Table