Kepler Objects of Interest (KOIs)

KOIs are well vetted, periodic, transit-like events in the Kepler data. The Kepler Project identifies these objects from the TCE list for further vetting. Some objects will be flagged as false positives.

All KOI tables are displayed in a single, interactive environment with separate tabs for each table (e.g., Q1-6, Q1-8, cumulative, etc). Column selection and filtering applies to all tabs, allowing easier comparison of values across KOI tables.

Current KOI Tables

The following table lists the interactive tables and documentation associated with each Kepler release to date.

Release NameRelease Description Delivery History Link to Table
Cumulative table only¹ Description PDF
Interactive Table
Cumulative and Quarterly Table² N/A N/A
Interactive Table
Q1-17 DR 25 Description PDF
Interactive Table
Q1-17 DR 24 Description PDF
Interactive Table
Q1-16 Description PDF
Interactive Table
Q1-12 Description PDF
Interactive Table
Q1-8 Description PDF
Interactive Table
Q1-6 Description PDF
Interactive Table

¹ The Cumulative table is a single tab containing a superset of KOIs from all available quarters. Use this link for faster performance when working with only the most current results.

² The combined Cumulative and Quarterly table contains KOI data for different quarters on separate tabs, as well as a superset of the data on a single tab. Use this link to access any of the quarterly activity tables (Q1-6, 1-8, 1-12 or 1-16) or to compare objects across tables.

MCMC Posterior Chains

The following files contain Markov Chain Monte Carlo (MCMC) posterior chains from fits to the KOIs. Compressed tar files are available for direct download, by wget script for the complete set (single script), or by wget script with one tar file per KOI (per object script). A document describing the MCMC files is also available.

Release Description Compressed File (.tar) Download Script (wget)
Q1-Q16 This file contains the MCMC posterior chains for all Q1-Q16 KOIs using fits to the Data Release 20-23 light curves and the Q1-Q16 Stellar Properties. download
(~8 GB)
single script
per object script
Q1-Q17 DR24 This file contains the MCMC posterior chains for the new Q1-Q17 DR24 KOIs using fits to the Data Release 24 light curves and the Q1-Q17 Stellar Properties. download
(~8 GB)
single script
per object script

Documentation

The following are documents specific to Kepler Objects of Interest. For more general documentation, see the Kepler Mission page.

Kepler Extended Mission data philosophy An overview of the delivery and archiving of Kepler TCEs and KOIs
How tabs work in the interactive tables User documentation on using the tabs within the interactive table environment.
KOI table column definitions This is a list of the data columns that appear in the Kepler table.
Q1-12 Release FAQ A Q&A discussion that covers commonly asked questions about the Q1-12 data release.


Last updated: 20 March 2017