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.


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.

30th Mar 2019: Data download packaging temporaily put on hold

Due to some unforeseen problems with our IT systems, the packaging of ordered downloads from TASOC are currently put on hold, and will likely not be up again until after the weekend. Any downloads that you order, will therefore not be ready until that time.
We apologize for the inconvenience.

6th Mar 2019: Plots now available in Data Search

You can now select to have a plot shown of each indiviual lightcurve in the data archive, by clicking on the "Plot" icon in the results table under "Data Search". This makes it even easier to do a quick look on the data without having to download the files first.


15th May 2019: HST-TESS Advisory Committee Call for White Papers

The HST-TESS Advisory Committee chartered by the STScI Director invites input from the astronomical community on the use of HST for follow-up observations of TESS exoplanet discoveries, including HST preparatory and supporting observations for JWST follow-up of TESS-discovered planets. Further information on example topics, format, and white paper authorship can …

Read more

18th Feb 2019: ARK/RPS submision page now open

The proposal submission page for TESS Cycle 2 proposals is now open. Proposals are due at 4.30pm eastern time on March 14, 2019.

We welcome proposals addressing compelling scientific questions in almost any area of astrophysics and planetary science. The science motivation may include, but is not limited to …

Read more

31st Jan 2019: Guest Investigator Program Cycle 2 deadline now March 14

Due to the partial government shutdown, the TESS Guest Investigator (GI) Program Cycle 2 deadline has been changed. The new Phase-1 due date (via ARK RPS) is 4:30 pm March 14, 2019. At this time we will be soliciting programs that target Northern Ecliptic Hemisphere fields.

Read more

TESS mission clock

Launch Countdown:

Where is TESS right now?

Tweets from TESS