Welcome to TESS Asteroseismic Science Operations Center

The TESS Asteroseismic Science Operations Center (TASOC) provides asteroseismological data from the NASA TESS mission to astronomers who are members of the TESS Asteroseismic Science Consortium (TASC). It is also the platform used to facilitate the international collaborations within TASC.

If you are a member of TASC, please log in below...

In order to have access to TASOC you have to be a member of TASC. Please see the "New TASC member" page on how to become a member.


12th Aug 2019: Data download temporaily put on hold

Due to malicious activity on our networks, the download of data from TASOC is currently been disabled. We are working hard on restoring the functionality and apologize for any inconvenience!
UPDATE (13/8): Everything is now back to normal, and data download is working.

28th May 2019: TIC-8 is ready

The new version of the TESS Input Catalog (TIC-8) has been made available on the MAST website. We have started the process of incorporating the new TIC into the TASOC systems and will be updating the TIC- and data-search to include the updated information, as well as the TASC target lists. More information will be provided later on.

2nd Apr 2019: Bundles are here

Do you want to get a hold of all the lightcurves that are produced at TASOC? Well, it is now much easier!
Simply go to the "Bundles" tab at the top of the page and you will find scripts for bulk-download of thousands of lightcurves in one go... Enjoy the easier access to large amounts of data, but remember to read the data release notes before diving in too deep.


27th Jun 2019: Update on TESS pointing in Year 2

TESS will observe the northern ecliptic hemisphere during the second year of its primary mission. The cameras will be oriented along a line of ecliptic longitude (as they were in Year 1), with that longitude determined by the anti-solar longitude at the mid-point of the sector. For most of Year …

Read more

27th Jun 2019: Upcoming TESS Conferences

The first year of TESS' prime mission will be completed in July, but the science is just beginning. Two conferences are being held in July on TESS science, and it is not too late to register for them!

The first is the TASC5/KASC12 workshop, being held in Cambridge, MA …

Read more

21st Jun 2019: Guest Investigator Program Cycle 2 results available

The selection of TESS Guest Investigator Program Cycle 2 proposals has been finalized. A full list of selected programs is now available. The over-subscription factor for Cycle 2 was slightly higher than in Cycle 1, so that many highly rated programs were not able to be selected for funding. However …

Read more

TESS mission clock

Launch Countdown:

Where is TESS right now?

Tweets from TESS