QUARTER 0-1 (Q0-1) PUBLIC DATA RELEASE

Observing Period: May 2-Jun 15, 2009
Release Date: Jun 15, 2010

Fig 1: KIC 9025922. A Kp = 13.29 Q1 target revealing a planet-like transit on a 11.32 day period. Through pixel data however, transits are identified with the Kp = 16.76 background star KIC 9025914 that encroaches within the photometric pixel aperture. This particular target therefore provides a false postive in the exoplanet transit search.

The Kepler mission announces the first full release of time series data collected by the Kepler spacecraft. Calibrated photometric data for individual sources can be obtained from the Kepler Archive at the Space Telescope Science Institute (via the Kepler Data Search and Retrieval form. This first release comprises all data obtained over Q0 (spacecraft commissioning) and Q1. The software pipeline at the Kepler Science Operations Center (SOC) and the instrument calibration are on-going projects, investigators are urged to read the Release Notes #5 and the Data Characteristics Handbook in order to understand the accuracy and limits of this, and future data releases.

During the 10 days of the Science data collection phase, designated Quarter 0 (Q0), the Kepler spacecraft observed 42,909 sources ranging from 5.8 < Kp < 15.0 within the field of view in order to calibrate performance and define operational parameters for the Science Mission. The exoplanet program began in Quarter 1 (Q1), spanning May 12 - Jun 18, 2009 with 147,903 sources ranging 5.1 < Kp < 17.4. Q1 was followed by a spacecraft roll in order to realign the solar panels and download data. Users of this data should be aware that future re-deliveries of the data for these sources will increase in accuracy and value as calibration and reduction algorithms continue to develop with operational knowledge.

New users of the MAST archive are requested to register before downloading data.

Please direct questions concerning the Q0-1 data to the .

BROWSE Q0-1 TARGETS

• Navigate your browser to the Kepler Data Search and Retrieval Page.
• From the pull-down menu under 'User-specified field 1', choose 'Quarter', then enter "0 .. 1" in the Field Description dialog box. This syntax selects both Q0 and Q1 data.
• Click on the search button.

QUICK LINKS

• Data Release Notes #5
• Release Notes #5 supplementary material
• Kepler Data Characteristics Handbook
• Kepler Data Search and Retrieval form
• Search and Retrieval Form help page
• Kepler Archive Manual