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.


16th Dec 2019: File server crash

Shortly before lunch-time today we had a major crash of our primary file-server, which holds all the Kepler/K2/KASC data. No data has been lost, but it does mean that it is currently not possible to download data from the KASOC Data Search, Bundles, or Publications.
We will keep the KASOC website running, and other features like Star Catalog should not be affected.
We apologize for any inconvenience this may cause, and hope to have the systems back online as soon as possible.
UPDATE (20/12): Everything is now back to normal, and all data is available again.

20th Aug 2019: TASC5/KASC12 materials available

All the material from this summers TASC5/KASC12 conference in Boston have now been made available:

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.

Kepler & K2 News

24th Oct 2019: MAST creates Kepler and K2 documentation pages

The Milkulski Archive for Space Telescopes (MAST) has created two pages dedicated to organizing Kepler and K2 mission documents.

Documents are organized into groups, listing the title of each document that links to the PDF, a brief description of its content/purpose, and citation information.

Users are likely to find …

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24th Oct 2019: Open source release of Kepler/K2 Cadence Events (K2CE) tool

A new tool for working with short- and long-cadence lightcurves has been released to the public under the NASA Open Source License, and made available for download via the NASA GitHub repository at https://github.com/nasa/K2CE.

Kepler/K2 Cadence Events (K2CE) is a Python data visualization and manipulation …

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22nd Oct 2019: K2 Campaigns 6 and 7 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

  • Simon J. Murphy: Gaia-derived luminosities of Kepler A/F stars, and the pulsator fraction across the δ Scuti instability strip
    Updated: Wed 15th January 2020 05:33.
  • Yvonne Elsworth: Insights from the APOKASC Determination of the Evolutionary State of Red-Giant Stars by consolidation of different methods
    Updated: Thu 14th November 2019 16:38.
  • Earl P. Bellinger: Testing stellar evolution with asteroseismic inversions of a main sequence star harboring a small convective core
    Updated: Tue 12th November 2019 01:43.
  • L. Bugnet: FliPer: A global measure of power density to estimate surface gravities of Solar-like stars
    Updated: Sat 12th October 2019 21:40.
  • Kuldeep Verma: Helium settling in F stars: constraining turbulent mixing using observed helium glitch signature
    Updated: Tue 8th October 2019 16:44.
  • F. Pérez Hernández: Influence of magnetic activity on the determination of stellar parameters through asteroseismology
    Updated: Fri 27th September 2019 19:43.
  • Rafael A. García: Asteroseismology of solar-type stars
    Updated: Fri 27th September 2019 19:42.

Kepler mission clock

Launch Countdown: