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 Sep 2016: Scheduled downtime

KASOC will be unavailable on Tuesday 20th September 2016, from 9:00 CET until the morning of Wednesday 21st September 2016. This is due to scheduled maintenance of our server-rooms. We hope this will not cause too much inconvenience.

1st Sep 2016: Final processing of short cadence is available

The final processing of short cadence data from the nominal Kepler-mission (Data Release 25) is now available for download under "Data Search".
In this release the previously reported problems with the short cadence data has been solved.
Bundles with these files are being created, and will be available shortly under "Bundles".

15th Aug 2016: Failure of CCD module 4

Another CCD module (module 4) of the Kepler photometer has failed during K2 Campaign 10. This means that there is now a total of three CCD modules of the photometer no longer in operation.
Read more here:

Kepler & K2 News

23rd Sep 2016: New forward-facing position of Campaign 16 finalized

We previously announced that in order to maximize the science return from the remaining fuel, K2 Campaign 16 will now be a forward-facing campaign. This is to facilitate science that benefits from simultaneous observations from Earth.

The position of this field has been finalized. The position was chosen to maximize the number of known low-redshift galaxies, while also enabling the collection of a significant fractions of both M67 and the Beehive cluster (aka Praesepe, M44). The campaign will begin around December 7, 2017 and last approximately 80 days. Campaign 16 has a 30% overlap with the Campaign 5 field.

To determine whether targets fall on-silicon, all investigators must update their version of the K2fov target selection tool and ensure they are using v6.0 or higher.

The new C16 EPIC catalog will be available at MAST within the next couple of weeks. The deadline for Step-1 proposals is November 3 at 23:59 EST. Information about the proposal process, including the scope, evaluation criteria, availability of funds, eligibility, target selection tools, submission process, and frequently asked questions, is detailed on the proposal preparation page.

Read more

21st Sep 2016: K2 Campaign 9 data processing complete

Pipeline processing for K2 Campaign 9 is now complete and the data are in the process of being shipped to the MAST archive. We anticipate that the data will become available for download on or before September 30.

The majority of the Campaign 9 pixel budget was dedicated to a 3.7 deg² superstamp toward the Galactic bulge, designed to search for gravitational microlensing events. Owing to the unique nature of this data set, the C9 data release will only contain target pixel files. High-level derived products, such as lightcurves, are expected to be released by the C9 science team at a later date.

Keep an eye on this website for an announcement of the release and the associated data release notes.

Read more

15th Sep 2016: Raw data for K2 Campaign 10 to be released immediately after downlink

The currently on-going K2 Campaign 10 includes targeted observations of 67P/Churyumov-Gerasimenko, the comet currently being studied by the ESA Rosetta Mission.

To provide members of the Rosetta science team with fast access to the data, the uncalibrated level 1 files for Campaign 10 will be made available immediately after downlink on or near September 26. They will be accessible from a public directory at https://archive.stsci.edu/pub/k2/c10_raw_cadence_data.

The use of the level 1 files requires an intimate understanding of their structure, as documented in KADN-26135. The Kepler/K2 GO Office has released a tool to convert the level 1 data into uncalibrated FITS images for quicklook purposes. The tool, called "kadenza", is available and documented at https://github.com/KeplerGO/kadenza.

The traditional calibrated data products for Campaign 10 will be released, as usual, when they are ready — approximately 2 to 3 months after the end of the Campaign.

Read more

Recently published scientific publications

  • D. R. Reese: SpaceInn hare-and-hounds exercise: Estimation of stellar properties using space-based asteroseismic data
    Updated: Mon 19th September 2016 08:59.
  • D. L. Compton: Binary star detectability in Kepler data from phase modulation of different types of oscillations
    Updated: Wed 14th September 2016 11:04.
  • Travis S. Metcalfe: Stellar Evidence that the Solar Dynamo may be in Transition
    Updated: Fri 2nd September 2016 19:32.
  • Vrard M.: Period spacing in red giant II. Automated measurement
    Updated: Tue 16th August 2016 11:21.
  • J. Pascual-Granado: Limits in the application of harmonic analysis to pulsating stars
    Updated: Mon 15th August 2016 09:52.
  • Ehsan Moravveji: Sub-Inertial Gravity Modes in the B8V Star KIC 7760680 Reveal Moderate Core Overshooting and Low Vertical Diffusive Mixing
    Updated: Sun 10th July 2016 10:33.
  • A. Miglio: Detection of solar-like oscillations in relics of the Milky Way: asteroseismology of K giants in M4 using data from the NASA K2 mission
    Updated: Mon 4th July 2016 22:56.

Kepler mission clock

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