Keck Observatory Archive (KOA)

Keck Observatory Archive (KOA) The Keck Observatory Archive (KOA), is a NASA-funded collaboration between the NASA Exoplanet Science Institute (NExScI) and the W.M. Keck Observatory. This site is intended for the astronomical community. http://nexsci.caltech.edu/archives/koa
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02/01/2018

KOA services are now back up.

01/31/2018

Please note that because of a campus power outage, all IPAC/NExScI services, including KOA, are down.

07/27/2017

KOA (https://koa.ipac.caltech.edu) 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. 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.

Keck Observatory Archive (KOA)
07/27/2017

Keck Observatory Archive (KOA)

Keck Observatory Archive (KOA)'s cover photo
07/27/2017

Keck Observatory Archive (KOA)'s cover photo

A record number of peer-reviewed citations for KOA in 2015!
12/18/2015

A record number of peer-reviewed citations for KOA in 2015!

Our handout for KOA at the DPS meeting this week. Note the Solar System content and exoplanet content in KOA!https://koa...
11/09/2015

Our handout for KOA at the DPS meeting this week. Note the Solar System content and exoplanet content in KOA!

https://koa.ipac.caltech.edu

11/09/2015

If you are at the DPS meeting this week, drop by the NExScI booth (#13) and see a demo of KOA's new Moving Object Search Service - find Solar System data measured by all instruments over the 20 year lifetime of Keck.

07/24/2015
Keck Observatory Archive: Basic KOA Data Access Service

KOA is please to announce the first public release of raw (level 0) Near InfraRed Camera (NIRC) data, acquired between 1995 and 2010. The release contains ~190,000 science and calibration files (~259 GB) from 964 nights covering this entire time span.

https://koa.ipac.caltech.edu/cgi-bin/KOA/nph-KOAlogin

The KOA web pages are supported under most common hardware platforms and operating systems, but on tablets such as iPads and Androids, features using mouse click-and-drag functionality are not available. Internet Explorer is not supported - we recommend Firefox or Chrome for Windows users.

The Keck Observatory Archive (KOA) is pleased to announce the first data release of spectra of 170 QSOs from the Keck Ob...
05/15/2015

The Keck Observatory Archive (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 at (add in URL). 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.

https://koa.ipac.caltech.edu/

Spectrum of KODIAQ QSO J010925-210257 (HE0106-2118) measured with HIRES on Jan 3-4 2006. The spectrum includes the 1-sigma uncertainties (shown in red).

01/05/2015

Visit us at the NASA Exoplanet Archive exhibit at the 225th AAS meeting in Seattle, January 4-8, 2015.

01/04/2015
Keck Observatory Archive

The Keck Observatory Archive (KOA) announces the first public release of OSIRIS data. These data products contain complete sets of metadata for raw (level 0) images, including WCS information derived by KOA; and reduced (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.

Altogether, we have released data from 1,003 nights, containing 32K+ science files (2.4 TB).

Data from all active instruments at the Keck Observatory are now in the public domain.

https://koa.ipac.caltech.edu/

12/23/2014
Keck Observatory Archive

he Keck Observatory Archive (KOA) announces the first public release of OSIRIS data. These data products contain complete sets of metadata for raw (level 0) images, including WCS information derived by KOA; and reduced (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.

Altogether, we have released data from 1,003 nights, containing 32K+ science files (2.4 TB).

Data from all active instruments at the Keck Observatory are now in the public domain.

https://koa.ipac.caltech.edu/

10/06/2014
Keck Observatory Archive

The Keck Observatory Archive (KOA; https://koa.ipac.caltech.edu) has archived all data from the decommissioned Long Wave Spectrograph (LWS) - there are 299 nights of data, with 23,000+ FITS files. These data will be available to PIs for one year and then become public.

With addition of LWS, KOA now archives all data from all Keck instruments, from date of commissioning to the present, and will continue to ingest all newly acquired observations as part of routine observations.

The Keck Observatory Archive (KOA) entered operations 10 years ago this week. The very first data from the High Resoluti...
08/20/2014

The Keck Observatory Archive (KOA) entered operations 10 years ago this week. The very first data from the High Resolution Echelle Spectrograph (HIRES) were ingested into KOA on August 19 2004. KOA has now grown to curate all data acquired by active instruments, sometimes extending as far back as as 1994, and houses over 30 TB of data. It has served over 1 million requests for data, and over 60 peer-reviewed papers cite the archive.

Below: screen shot of our ingestion reporting page recording the historic event:

The Keck Observatory Archive (KOA) has released to the public data from the Echellette Spectrograph and Imager (ESI) ins...
07/31/2014
Keck Observatory Archive: Basic KOA Data Access Service

The Keck Observatory Archive (KOA) has released to the public data from the Echellette Spectrograph and Imager (ESI) instrument. 780 nights of data have been released, consisting of 21,988 science files and 27,935 calibration files.

KOA has also released to PIs, 973 nights of data from the the now decommissioned Near Infrared Camera (NIRC), comprising 263,238 files with a data volume of 276 GB. These data will start to become public in July 2015.

The next KOA public release: OSIRIS, currently planned for December 2014.

https://koa.ipac.caltech.edu/cgi-bin/KOA/nph-KOAlogin

The KOA web pages are supported under newer versions of Firefox, Chrome, or Safari. Internet Explorer is not supported - we recommend Firefox or Chrome for Windows users. Most common hardware platforms and operating systems are supported including iPad, but excluding Android-based tablets.

04/04/2014

KOA now has a Twitter feed - follow us @KeckArchive.

04/02/2014

KOA has released to the public 628 nights of data from the DEIMOS instrument. The released data include 27,409 science files and 56,514 calibration files. Another 665 nights of data will be released as their propriety period expires. Altogether, the DEIMOS total includes 38,308 science files and 71,881 calibration files (10.2 TB total)

01/03/2014

KOA reached a major milestone in December 2013: with the ingestion of OSIRIS data, it has archived all the science and calibration observations from all eight active instruments. Currently, data from four instruments are public, but by December 2014, data whose proprietary period has expired will be made public for all eight instruments.

KOA has extensive holdings of exoplanet and Kepeler observations: over half the stars with confirmed planets have public...
01/03/2014

KOA has extensive holdings of exoplanet and Kepeler observations: over half the stars with confirmed planets have public data in KOA. Learn more in this poster presented at the Second Kepler Science Conference, November 2013.

KOA will be at the NExScI booth at the AAS meeting, January 7-19, 2014. Pay us a visit. Here is the handout that you can...
01/03/2014

KOA will be at the NExScI booth at the AAS meeting, January 7-19, 2014. Pay us a visit. Here is the handout that you can pick up at the booth:

KOA Releases NIRC2 Data!!The Keck Observatory Archive (KOA) has released raw and calibrated images from the Near Infrare...
05/11/2012
Keck Observatory Archive: Basic KOA Data Access Service

KOA Releases NIRC2 Data!!

The Keck Observatory Archive (KOA) has released raw and calibrated images from the Near Infrared Camera 2 (NIRC2). This is the first imaging instrument archived in KOA, and the third instrument altogether. As of May 7, 1240 nights of NIRC2 data have been archived, and 932 nights are public. These data include all four observing modes: narrow-imaging, medium-imaging, wide-imaging, and spectroscopy. New data will be added whenever NIRC2 is scheduled on the telescope. The NIRC2 data may be accessed through the KOA search page:

https://koa.ipac.caltech.edu/cgi-bin/KOA/nph-KOAlogin

High Resolution Echelle Spectrograph (HIRES)second generation Near InfraRed Camera (NIRC2)Near InfraRed echelle SPECtrograph (NIRSPEC)

01/02/2012

KOA will be at the 219th AAS meeting, Austin, Texas, Jan 8 through 12. We will be giving one-on-one demos of KOA at the NExScI booth. Drop by for a test drive.

Here is the latest KOA Brochure (December 2011)
01/02/2012

Here is the latest KOA Brochure (December 2011)

11/04/2010

KOA has released a new version (8.1) with several new features, including an interface for PIs that provides an overview of their programs and data in the archive. The release also includes additional sources of weather data and cookbooks for importing NED and SIMBAD search results into KOA searches.

10/18/2010

New features for KOA! Stay tuned for an announcement of version 8.1.

07/20/2010

The Keck Observatory Archive has completed ingestion (except for a few unrecoverable nights) of all available NIRSPEC (a Near-Infrared Echelle Spectrograph) instrument data. KOA has now ingested 2,391 HIRES and 1,171 NIRSPEC nights, with respective total data volumes of 5.65 TB for HIRES and 529 GB for NIRPSEC.

05/18/2010

The Keck Observatory Archive (KOA) announces that users now have access to data acquired using the Keck Near InfraRed echelle SPECtrograph (NIRSPEC) instrument between 2000 and 2010. This first public release is for more than 900 nights of data which include ~250,000 raw science and calibration files.

02/05/2010

“KOA opened publicly in July 2006. KOA currently serves spectroscopic data from Keck’s High Resolution Echelle Spectrograph. It releases spectra obtained by astronomers after a proprietary period expires.

12/04/2009

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.

07/24/2009

KOA on Twitter

07/10/2009

KOA Help

07/10/2009

Looking for more information about using KOA?

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Mail Code 100-22, 770 South Wilson Ave
Pasadena, CA
91125

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