Last modified 2018-12-20
The TESS Science Office (TSO) is releasing Alerts as a service to the community. The goal is to enable follow-up science prior to official data release for each sector. Alerts are a “living list” that is subject to change as new information becomes available. Today’s Alerts are still part of a “beta test” and are only available to a limited to users registered at tess.mit.edu/alerts. All Alerts are also made publicly available at ExoFOP TESS. Alerts from the official TESS pipeline (SPOC) are also available along with their data products at MAST. For more details see this page.
Please note that TESS Alerts are from preliminary data products and likely contain false positives. Today’s data products may or may not match the final archived data products. If you would like to share the alert products, be sure to use the ExoFOP or MAST data until further notice.
Using the Alerts and TESS Data
If the user is part of the TESS Team (Co-I, Collaborator, WG member, TESS staff), the TESS publication policy should be followed (https://spacebook.mit.edu/display/TESS/Publications)
If users are creating a publication, they should include whichever of the below is most appropriate in the acknowledgements.
Publications based on data obtained from the TESS project are requested to include the acknowledgment:
“Funding for the TESS mission is provided by NASA’s Science Mission directorate.”
Until the alerts are fully public:
“We acknowledge the use of TESS Alert data, which is currently in a beta test phase, from pipelines at the TESS Science Office and at the TESS Science Processing Operations Center.”
Once the Alerts are public:
“We acknowledge the use of public TESS Alert data from pipelines at the TESS Science Office and at the TESS Science Processing Operations Center.”
Once the data are public on MAST:
This paper includes data collected by the TESS mission, which are publicly available from the Mikulski Archive for Space Telescopes (MAST).”
Creation of the Alerts
The Alerts come from visual analysis of significant threshold crossing events by the TSO. These events were found by the TESS SPOC pipeline of record.
The TESS team is developing a process for community alerts. These alerts will be from the FFIs, and not from the SPOC data products. MIT’s Quick Look Pipeline (QLP) is one source of community TOIs. See this page for more on submitting your own TOIs.
How to Navigate the Alerts
A reference image of the Alerts website is shown below. The blue dropdown button can be used to switch between the two pipelines (SPOC and QLP), or select all to view all alerts at once.
The columns include the TIC ID, the TOI ID, the Disposition (as determined by the TSO vetters), RA, Dec, TESS Magnitude, Planetary Radius, Period, Transit Duration, and Transit Depth. Details on each of these columns can be found near the end of this document. Users can interactively sort on the different columns using the web interface.