Keck Observatory Archive: News & Announcements


July 26, 2017 KOA is pleased to announce the second data release (DR2) from the Keck Observatory Database of Ionized Absorption toward Quasars (KODIAQ) project. This release contains spectra of 130 new QSOs, bringing the total number of KODIAQ objects to 300. The products are reduced, continuum normalized quasar spectra derived from public HIRES raw data served through KOA. Intermediate data extraction products for the DR2 data will be available in Fall 2017. The data are accessible from the KODIAQ search page. Users may download gzipped tar files of the data and the intermediate data products (currently only available for DR1 data), or perform positional searches to discover, visualize, and download the data sets.

May 30, 2017 Release of browse-quality spectra extracted with a new, automated pipeline from 1,821 nights of NIRSPEC high-dispersion data. The pipeline is written in Python, is available at https://tinyurl.com/nsdrp-code and documented at https://tinyurl.com/koa-nsdrp. The Moving Object Search Service now includes orbital element input for searches of new asteroids and comets.

February 21, 2017 Release of complete, validated metadata and calibration association for LRIS. The calibration association service returns the optimum set of calibration files for reduction of raw science files.

December 19, 2016: Release of the Moving Object Search Service (MOSS), a web interface that supports searches of KOA in time and space for observations of known solar system objects. The service uses the SPICE tools maintained by NASA's Navigation and Ancillary Information Facility to compute ephemerides of Solar System objects.

March 15, 2016: FITS header viewer option added to the quicklook column on the search results pages. Also released are minor updates and bug fixes.

February 16, 2016: Release of interactive viewers for OSIRIS Reduced Data Cubes and NIRC2 Calibrated Images. Also released are date constraints for program searches in the programs pages and one-click downloads of level 1 FITS files on the quicklook pages for OSIRIS, NIRC2, and LWS.

September 28, 2015: First public release of LWS data.

August 31, 2015: Users can now choose to retrieve files from the archive with their telescope-assigned filenames. Also included in this release: forgotten password reset, ADS bibcodes (shown on the Released Programs tab), and direct links to OSIRIS rectification matrices from the download package page.

August 18, 2015: First release of a program interface for use in scripts or from the command line that provides access to public imaging data from all instruments equipped with an imaging mode. The interface uses a common syntax across all instruments and is compliant with Virtual Observatory standards.

July 6, 2015: First public release of NIRC data.

June 15, 2015: Download package organization has been changed; please see User Guide for details. Also, the "Basic Search" form now includes the option to search by TARGNAME.

May 15, 2015: KOA is pleased to announce the first data release of spectra of 170 QSOs from the Keck Observatory Database of Ionized Absorption toward Quasars (KODIAQ) project. The spectra are reduced, continuum normalized quasar spectra derived from public HIRES raw data served through KOA. Intermediate data extraction products are also provided. The data are accessible from a dedicated landing page for KODIAQ. Users may download gripped tar files of the data and the intermediate data products, or perform positional searches to discover, visualize and download the data sets.

December 19, 2014: First public release of OSIRIS data. These data products contain complete sets of metadata for level 0 images, including WCS information derived by KOA; and level 1 browse products derived from the public OSIRIS pipeline, automated by KOA. Finally, the search engine returns the optimum set of calibration files for reduction of raw science files.

September 24, 2014: First release of LWS data. The data from LWS will be accessible only to PI's until September 2015 at the earliest. Also released are minor updates and bug fixes.

August 7, 2014: Minor bug fixes to correct behavior when special characters are included in some input fields: "+" in Object Name and single quotes in a Program Title are now handled properly.

July 2, 2014: First release of NIRC data. The data from NIRC will be accessible only to PI's until July 2015 at the earliest. First public release of ESI data.

April 1, 2014 First public release of DEIMOS data.

January 29, 2014 First public release of MOSFIRE data.

December 18, 2013: First release of OSIRIS data. The data from OSIRIS will be accessible only to PI's until December 2014 at the earliest. Also released is a portal summarizing Contributed Datasets.

September 30, 2013: First public release of LRIS data.

July 30, 2013: Minor updates to the User Interface

July 2, 2013: First release of ESI data. The data from ESI will be accessible only to PI's until July 2014 at the earliest.

March 19, 2013: First release of DEIMOS data. The data from DEIMOS will be accessible only to PI's until April 2014 at the earliest.

Jan 28, 2013: First release of MOSFIRE data. The data from MOSFIRE will be accessible only to PI's until January 2014 at the earliest. The Keck Observatory Archive now also houses data from the Keck Interferometer.

Oct 2, 2012: First release of LRIS data. The data from LRIS will be accessible only to PI's until September 2013 at the earliest. Also released is a new interactive return display for the Released and My Programs pages.

May 3, 2012: First public release of NIRC2 data for observations between 2001 and 2012. As of May 3, 2012, the nights listed here are not accessible. They will be available by the end of May 2012. Also released is a new interactive return display for sorting and filtering on returned data.

November 14, 2011: Download packaging improvements

October 31, 2011: Minor updates and bug fixes

August 31, 2011: New interactive plotting tool for HIRES extracted spectra

July 13, 2011: Database optimization; several minor bug fixes

March 7, 2011: KOA now archives weather data from several sources for each night.

October 15, 2010: Release of a new "My Programs" interface for PIs that provides an overview of their programs and data in the archive. The release also has additional sources of weather data and examples for importing NED and SIMBAD search results into KOA searches.

May 17, 2010: First public release of NIRSPEC data for observations made between 2000 and 2010.

November 10, 2009: Release of a new "Basic Search" form. Users may search on observation date, object name, or object location and have their results returned as a list or a download package.

August 12, 2009: Public release of extracted browse products for observations made between 1994 and 2004.

July 31, 2008: Public release of extracted browse products for observations made after August 2004.

June 30, 2008: Public release of observations made between January 1995 and December 2000.

April 30, 2008: Public release of observations made between January 2001 and August 2004, prior to the 3-chip CCD upgrade.

July 17, 2006: Public release of Keck Observatory Archive - anonymous users may now search for and retrieve non-proprietary data.

November 11, 2005: HIRES observations of GRB051111 were taken on November 11 UT, and are publicly available through the Keck Observatory Archive.

July 4, 2005: HIRES observations of comet Tempel 1 and the Deep Impact collision are available to the public through the Keck Observatory Archive.

September 2, 2004: KOA is now open to PIs with HIRES data. A username and password, which will be provided to PIs after their observing runs, are required for login.

August 19, 2004: The Keck Observatory Archive has begun ingesting HIRES data.