NASA Exoplanet Science Institute The Keck Observatory Archive ndex.shtml A collaboration between NExScI and the W. M. Keck Observatory June 11, 2010 GRITS, Pasadena, CA G. Bruce Berriman on behalf of the KOA team

NASA Exoplanet Science Institute The W. M. Keck Observatory Twin telescopes function as an interferometer – Data archived at NExScI! Each telescope has its own suite of powerful imagers and spectrographs In 2002, NASA funded an archive of data from the High Resolution Echelle Spectrograph (HIRES) – Celebrated for its role in the discovery of exoplanets... thus was born KOA 2

NASA Exoplanet Science Institute Great Moments in KOA History 3

NASA Exoplanet Science Institute KOA Holdings 4 KOA Raw Data Holdings (May 2010)KOA HIRES Extracted Spectra Holdings (May 2010)

NASA Exoplanet Science Institute Extracted HIRES Spectra KOA developed an automated pipeline for the extraction of 1-D browse spectra from the raw science and calibration files – Upgrade to existing package (makee v5.2.x) Wavelength calibration extended to 9800 Å Improvements to cosmic-ray masking, trace- finding and slit-finding routines. Product contains: – 1-D spectrum per order per CCD Automated extraction grade Manual validation of grade – Diagnostic data including: S/N Traces and profiles Preview images Reduction log 5

NASA Exoplanet Science Institute Science Results With KOA 6 Bonifacio et al. (2009) A & A Abundances of extremely metal poor stars in a study of the chemical history of the Galaxy Spectrum of CS with model fits superposed Rivera et al (2010). Ap J. Used 12.8 years of HIRES data to discover a Super Earth of 7.4 M earths in a 5.77 day orbit around the G0V star HD 1461.

NASA Exoplanet Science Institute 7 KOA Under The Hood  Data Evaluation and Preparation (DEP) and Data Quality Analysis (DQA) Validates the integrity of the headers and content of the FITS files created at the telescope Adds archive-supporting content to the FITS headers (e.g., program information, image type)  Trans-Pacific Transfer (TPX) Automated transfer of metadata and data from WMKO to MSC. Ingestion complete the afternoon following the observations.  Data Storage and User Interface (UI) Re-uses IRSA’s component-based service layer architecture Provides secure access for PIs to proprietary data Supports searches for science and/or calibration files based on scientific, instrumental, and program information File packaging and download support

NASA Exoplanet Science Institute User Interface – Three Ways To Get Data 8

NASA Exoplanet Science Institute User Interface – Three Ways To Get Data 9

NASA Exoplanet Science Institute User Interface – Three Ways To Get Data 10

NASA Exoplanet Science Institute KOA Return pages 11

NASA Exoplanet Science Institute KOA on Facebook and Twitter 12

NASA Exoplanet Science Institute Contributors to KOA 13 Tom Barlow Caltech Amy Beekley Raytheon Bob Goodrich WMKO Stephen Kane Caltech Mihseh Kong Caltech Anastasia Laity Caltech Christina Lau Raytheon Jeff Mader WMKO Melanie Swain Raytheon Hien Tran WMKO Myrna Tsubota WMKO Tom Barlow Caltech Amy Beekley Raytheon Bob Goodrich WMKO Stephen Kane Caltech Mihseh Kong Caltech Anastasia Laity Caltech Christina Lau Raytheon Jeff Mader WMKO Melanie Swain Raytheon Hien Tran WMKO Myrna Tsubota WMKO … and the managerial baton passes to Deborah Levine