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.


5th Dec 2016: Search for multiple positions in TIC Search

You can now search for multiple positions in the TIC search interface. You can provide a list of sky positions and the tool will now return all stars that fall within a given radius of these positions.

11th Nov 2016: New e-mail notifications from Wikis

From now on you will start to receive e-mails from TASOC when wiki-pages of the working groups you are a member of are updated. This should hopefully help you keep yourself up-to-date with the work in the WGs.
If you do not want to receive these e-mails, you can disable them from the "My account" page.

8th Nov 2016: Contamination in TIC Search

We have added the "Contamination" column to the TIC Target Search output table. It defines the ratio of contamination to target star flux. It is currently only available for a small subset of the TIC entries (0.5%), but could be useful for TASC target selection.

Tweets from TESS

TESS mission clock

Launch Countdown:

NB: The launch date has not been set yet, so the countdown is, for now, only ment as a guideline.