K2 Information

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Exoplanet Archive K2 Resources

System Requirements

Campaign Data In the Archive

K2 Stellar Data

K2 Naming/Numbering

Additional Mission Resources

K2 Mission

The K2 mission continues Kepler's ground-breaking discoveries in the field of exoplanets and expands its role into new and exciting astrophysical observations. On two reaction wheels, K2 is limited to pointing near the ecliptic plane, sequentially observing fields as it orbits the sun. This observing strategy regularly brings new, well-characterized target fields into view, enabling observations of scientifically important objects across a wide range of galactic latitudes in both the northern and southern skies.

K2 will perform a series of long, ecliptic-pointed campaigns to collect data for the astrophysical community that will inform their understanding of planet formation processes, young stars, stellar activity, stellar structure and evolution, and extragalactic science. All K2 targets are proposed by the community through the Guest Observer Program.

Exoplanet Archive K2 Resources

When K2 light curves or pipeline data products are made available by the project, they will be ingested into the NASA Exoplanet Archive.

The archive provides an interactive table for all K2 targets, which, due to the size of the data set, requires an initial search. This result table can be sorted, filtered and downloaded for further analysis.

In addition to the columns in the EPIC catalog, the table indicates the campaigns in which the targets were observed. For Campaign 0 targets, we have matched 2MASS objects to the K2 targets using the same procedure as described in the EPIC catalog description.

  Interactive Tables (Also see: How to use interactive tables) Documentation and Other Information
K2 Targets Search interface to interactive table

Data Column Definitions

K2 Candidates

Data Column Definitions
K2 Names
Data Column Definitions

In addition, the Inventory service indicates whether an object or location has a K2 counterpart.


Campaign Data in the Archive

The following table lists which K2 campaigns have targets and/or project light curves in the Exoplanet Archive. EPIC sources that are targets in more than one K2 Campaign, e.g., in both C1 and C10, are under both campaigns.

  Targets Light Curves
Campaigns E (-1), 0, 1, 2, 3, 4, 5, 6. 7, 8, 9, 10, 11, 12, 13 3, 4, 5, 6, 7, 8

K2 Stellar Data

The stellar data from Huber et al. (2016) is also available in this ASCII file (35 MB).

K2 Naming/Numbering

Following the practice adopted during the Kepler prime mission and continued during the Kepler extended mission, confirmed planets with K2 data will receive a K2 designation with the format K2-1 b. For more information, see the K2 Numbers page.

Additional Mission Resources


Last updated: 12 April 2017