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NEW! NIRSPEC Data Now Available: Data Access Funded by NASA, the Keck Observatory Archive (KOA) is a joint development between the W. M. Keck Observatory (WMKO) located in Waimea, Hawaii and the NASA Exoplanet Science Institute (NExScI) located in Pasadena, California. Currently, KOA archives data taken with the High Resolution Echelle Spectrograph (HIRES) and the Near-Infrared Echelle Spectrometer (NIRSPEC) on the Keck I and II telescope, respectively. The process by which data are archived is as follows: Locate all HIRES and NIRSPEC FITS files taken in the previous 24 hour period Determine the validity and data integrity of each file Add meta-keywords to the FITS header Archive the metadata (native + meta-keywords) for each FITS header Archive the data for each FITS file Archive ancillary data associated with each night's data Ancillary data include Keck nightly plots of weather and image quality trends and, when available, all-sky images and photometric data The physical location of the archive is at NExScI. Both metadata and raw FITS files are transferred via the internet from WMKO to NExScI, and are available through a User Interface within hours of the end of observations. Both the data files and the metadata are subject to a proprietary period policy. During the proprietary period, program PIs will be able to access their data via a user login/password protected site. The data are released to the public upon expiration of the proprietary period.

KOA NEWS May 17, 2010 Raw (level-0) NIRSPEC data from 2000-2010 are now available on KOA. August 12, 2009 Extracted spectra from 1994 - 2004 obtained with the pre-upgraded single CCD are now available on KOA. August 1, 2008 Extracted spectra from the upgraded HIRES raw data are now available on KOA. June 30, 2008 HIRES data from 1994 - 2001 obtained with the pre-upgraded single CCD are now available on KOA. April 30, 2008 HIRES data from 2001 - 2004 obtained with the pre-u... more news...