The Kepler Asteroseismic Science Operations Center provides asteroseismological data from the NASA Kepler mission to astronomers who are members of the Kepler Asteroseismic Science Consortium (KASC).

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

In order to have access to the Kepler Asteroseismic data you have to be a member of KASC. Please see the "New KASC 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 KASOC 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.

31st Oct 2018: Goodbye Kepler

Goodbye Kepler. You will be missed!
We can all take solace in the fact that the amazing data you have provided us will keep up busy, making new discoveries, for years to come.
Now, take a well-deserved rest - you have earned it!

21st Aug 2018: TASC4/KASC11 Conference Material

The slides, posters and photos from the TASC4/KASC11 conference in Aarhus, Denmark has now been made available on KASOC and TASOC. If you have any other material, like good photos you took during the conference, feel free to e-mail them to us and we can include it on the page.

Kepler & K2 News

15th Aug 2019: Final release of K2 high-cadence guide star photometry

About two years ago we announced the release of Kepler and K2 C0–C12 Fine Guidance Sensor (FGS) data. These data provide photometry and centroid positions for the guide stars that were used to main stable spacecraft pointing. These data contain the highest time sampling possible with Kepler, with integration …

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12th Aug 2019: Updated version of the K2 Handbook now available

An updated version of the K2 Handbook has been released and is available in PDF format via the K2 Documents page at MAST.

The updated K2 Handbook describes:

  • Operation of the Kepler spacecraft for the K2 Mission — now updated through end-of-flight.
  • How K2 targets were selected and apertures chosen — now …

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1st Aug 2019: K2 Campaign 4 reprocessed

A year ago we announced that we were undertaking an effort to reprocess campaigns 0–14 using the same version of the Kepler/K2 pipeline used for C15 and subsequent campaigns. This version introduced several new features and improvements, such as more sophisticated pixel calibration, better identification of spacecraft pointing …

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Recently published scientific publications

  • Amalie Stokholm: The subgiant HR 7322 as an asteroseismic benchmark star
    Updated: Thu 8th August 2019 09:29.
  • Daniel R. Hey: Six new rapidly oscillating Ap stars in the Kepler long-cadence data using super-Nyquist asteroseismology
    Updated: Thu 1st August 2019 21:58.
  • Rhita-Maria Ouazzani: gamma Doradus stars as test of angular momentum transport models
    Updated: Tue 30th July 2019 18:49.
  • Marc H. Pinsonneault: The Second APOKASC Catalog: The Empirical Approach
    Updated: Fri 26th July 2019 14:00.
  • Elham Ziaali: The period–luminosity relation for δ Scuti stars using Gaia DR2 parallaxes
    Updated: Thu 18th July 2019 04:14.
  • Elham Ziaali: The period-luminosity relation for delta Scuti stars using Gaia DR2 parallaxes
    Updated: Thu 18th July 2019 04:13.
  • Savita Mathur: Revised Stellar Properties of Kepler Targets for the Q1-17 (DR25) Transit Detection Run
    Updated: Tue 2nd July 2019 17:18.

Kepler mission clock

Launch Countdown: