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.


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.

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!

Kepler & K2 News

6th Sep 2019: Corrected C2 short-cadence TPFs released

Previously we announced that some recently reprocessed short-cadence target pixel files from C2R, C3R, and C5R were incorrectly calibrated. We estimated that of the 474 short-cadence targets in those campaigns, 175 were possibly affected at any level, and ~25% of those 175 were affected at a non-negligible level.

At the …

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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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Recently published scientific publications

  • 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.
  • M. Yildiz: Fundamental properties of Kepler and CoRoT targets: IV. Masses and radii from frequencies of minimum $\Delta \nu$ and their implications
    Updated: Tue 17th September 2019 13:56.
  • Mikkel N. Lund: Bolometric corrections of stellar oscillation amplitudes as observed by the Kepler, CoRoT, and TESS missions
    Updated: Mon 16th September 2019 10:33.
  • Conny Aerts: Angular Momentum Transport in Stellar Interiors
    Updated: Mon 2nd September 2019 13:20.

Kepler mission clock

Launch Countdown: