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.


20th Aug 2019: TASC5/KASC12 materials available

All the material from this summers TASC5/KASC12 conference in Boston have now been made available:
Click here to read more.

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.


4th Sep 2019: We want your newsworthy results for AAS

The TESS team will be at AAS in January 2020! If you are also attending, and you plan to present TESS results that you think would be of broad interest to the public, please submit a media request. We would love to showcase as many TESS results as possible, but …

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3rd Sep 2019: Announcement of the TESS Extended Mission

After TESS completes its 2-year prime mission in July 2020, TESS will officially be continuing operations as part of an extended mission! TESS will continue scanning the sky in the extended mission for transiting exoplanets and other transients. As part of this extended mission, Guest Investigator proposals will continue to …

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2nd Sep 2019: Update on pointing for Sector 16

TESS has been successfully conducting observations in the northern ecliptic hemisphere since July 18th. As previously announced, the field-of-view of the TESS camera array was shifted north by 31° with respect to its nominal pointing in Sectors 14 and 15 in order to reduce the impact of scattered light from …

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TESS mission clock

Launch Countdown:

Where is TESS right now?

Tweets from TESS