KOA Data Access Service User Guide
- About the Keck Observatory Archive
- Navigation
- The KOA Data Search Service:
Basic | More Options | Moving Object | Guider Search - Search Results and Downloading Data
- Video Tutorials
- Instruments:
Visible Band (0.3-1.0 Micron) Near-Infrared (1-5 Micron) DEIMOS LWS ESI MOSFIRE HIRES NIRC KCWI NIRC2 KPF NIRES LRIS NIRSPEC OSIRIS - GUIDER Data
- Contributed Data
- Frequently Asked Questions
- Glossary of KOA terms
About the Keck Observatory Archive:
Navigation:
Using the KOA Data Access Service - Basic Search:
Using the KOA Data Access Service - More Search Options:
Using the KOA Data Access Service - Moving Object Search
Using the KOA Data Access Service - Guider Search:
Search Results and Downloading Data:
- Understanding Search Results
- Using the Interactive Return Table
- Calibration File Types
- Packaging Files for Download
- Image API - Program searches for image data (VO-compliant)
- Python API - A Python Interface to KOA Data
- Using the WGET Script or Curl to Download File Packages
- KOAID Filename Translator Shell Script (Usage Guide)
Deprecated (Original Filename is available directly via search results) - Availability and Creation of Sky Coordinates (WCS)
- Retrieving Ancillary Weather Data
- Building HTTP GET Queries
Video Tutorials
- How to use the Keck Observatory Archive presented at the 236th Meeting of the American Astronomical Society (AAS), June 1-3, 2020
- Keck Observatory Archive Webinar presented at the 236th Meeting of the American Astronomical Society (AAS), June 1-3, 2020
- Using the OSIRISVisualizer: Images (part 1)
- Using the OSIRIS Visualizer: Spectra (part 2)
- Using the NIRC2 Visualizer
About DEIMOS Data:
- DEIMOS Instrument Modes and Properties
- DEIMOS Reduced Data
- DEIMOS Calibration Association
- DEIMOS Data Format
- DEIMOS WCS Information
- DEIMOS Instrument Page (WMKO)
- DEIMOS Instrument News (WMKO)
- DEIMOS FITS Keyword Descriptions
About ESI Data:
- ESI Instrument Modes and Properties
- ESI Calibration Association
- ESI Data Format
- ESI WCS Information
- ESI Instrument Page (WMKO)
- ESI Instrument News (WMKO)
- ESI FITS Keyword Descriptions
About GUIDER Data:
About HIRES Data:
- HIRES Data Set Definitions and Calibration Association
- HIRES Data Format (PDF - 2.3 MB)
- HIRES Extracted Spectra
- HIRES Extracted Spectra Visualization
- HIRES Extracted Spectra Products
- HIRES Guide to Interpreting the Extracted Spectra
- HIRES Extracted Spectra Grades
- HIRES WCS Information
- HIRES Instrument Page (WMKO)
- HIRES Instrument News (WMKO)
- HIRES FITS Keyword Descriptions
About KCWI Data:
- KCWI Instrument Modes and Properties
- KCWI Reduced Data
- KCWI Calibration Association
- KCWI Data Format
- KCWI WCS Information
- KCWI Instrument Page (WMKO)
- KCWI Instrument News (WMKO)
- KCWI FITS Keyword Descriptions
About KPF Data:
- KPF Instrument Modes and Properties
- KPF Calibration Association
- KPF Data Format
- KPF WCS Information
- KPF Instrument Page (WMKO)
- KPF Instrument News (WMKO)
- KPF FITS Keyword Descriptions
About LRIS Data:
- LRIS Instrument Modes and Properties
- LRIS Calibration Association
- LRIS Data Format
- LRIS WCS Information
- LRIS Instrument Page (WMKO)
- LRIS Instrument News (WMKO)
- LRIS FITS Keyword Descriptions
About LWS Data:
- LWS Calibration Association
- LWS Reduced Data
- LWS WCS Information
- LWS Instrument Page (WMKO)
- LWS Instrument News (WMKO)
- LWS FITS Keyword Descriptions
About MOSFIRE Data:
- MOSFIRE Instrument Modes and Properties
- MOSFIRE Reduced Data
- MOSFIRE Calibration Association
- MOSFIRE Data Format
- MOSFIRE WCS Information
- MOSFIRE Instrument Page (WMKO)
- MOSFIRE Instrument News (WMKO)
- MOSFIRE FITS Keyword Descriptions
About NIRC Data:
- NIRC Calibration Association
- NIRC WCS Information
- NIRC Instrument Page (WMKO)
- NIRC Instrument News (WMKO)
- NIRC FITS Keyword Descriptions
About NIRC2 Data:
- NIRC2 Modes and Instrument Properties
- NIRC2 Calibration Association
- NIRC2 Calibrated Data
- NIRC2 Data Format
- Fall 2014: Changes to NIRC2 FITS Header
- NIRC2 WCS Information
- NIRC2 _unp Data
- NIRC2 TRS Information
- NIRC2 Instrument Page (WMKO)
- NIRC2 Instrument News (WMKO)
- NIRC2 FITS Keyword Descriptions
About NIRES Data:
- NIRES Instrument Modes and Properties
- NIRES Calibration Association
- NIRES Data Format
- NIRES WCS Information
- NIRES Instrument Page (WMKO)
- NIRES Instrument News (WMKO)
- NIRES FITS Keyword Descriptions
About NIRSPEC Data:
- NIRSPEC Modes and Instrument Properties
- NIRSPEC Calibration Association (for spectroscopic modes only)
- NIRSPEC Data Format
- NIRSPEC Extracted Spectra
- NIRSPEC Extracted Spectra Data Products
- NIRSPEC WCS Information
- NIRSPEC Instrument Page (WMKO)
- NIRSPEC Instrument News (WMKO)
- NIRSPEC FITS Keyword Descriptions
About OSIRIS Data:
- OSIRIS Calibration Association
- OSIRIS Reduced Data
- Spring 2015: Note Regarding OSIRIS Data Reprocessing
- OSIRIS WCS Information
- OSIRIS Instrument page (WMKO)
- OSIRIS Instrument News (WMKO)
- OSIRIS FITS Keyword Descriptions
Contributed Data:
Please acknowledge the use of KOA by including this text in your publications:
This research has made use of the Keck Observatory Archive (KOA), which is operated by the W. M. Keck Observatory and the NASA Exoplanet Science Institute (NExScI), under contract with the National Aeronautics and Space Administration.
Please also acknowledge the PI(s) of datasets that have been obtained through KOA, and please contact the KOA Help Desk if you publish archival data.
If your research uses data reduced by the DEIMOS DRP or MOSFIRE DRP, please use the PypeIt Citation.
Privacy Policy Image Use Policy
The Keck Observatory Archive (KOA) is a collaboration between the NASA Exoplanet Science Institute (NExScI) and the W. M. Keck Observatory (WMKO). NExScI is sponsored by NASA's Exoplanet Exploration Program, and operated by the California Institute of Technology in coordination with the Jet Propulsion Laboratory (JPL).
