GUIDER Camera Images
Each of the science instruments utilizes one or more guide cameras to help with the positional setup and stability of the science instrument during observations. These guider images are saved frequently throughout the night and can be useful for understanding the contents of the corresponding science instrument data. The available guide camera images are
| Guide Camera Name | Associated Science Instrument |
|---|---|
| deimos | DEIMOS |
| esi | ESI |
| hiresSlit | HIRES |
| kcwia | KCWI |
| kpf | KPF |
| lrisOffset | LRIS |
| lrisSlit | LRIS |
| mosfire | MOSFIRE |
| acama | NIRC2 |
| niresa | NIRES |
| niresSlit | NIRES |
| nirspecm | NIRSPEC |
| nscam | NIRSPEC |
| acama | NIRSPAO |
| acam | OSIRIS |
Calibration Association
Because the guider camera images are not designed to produce a science product, no calibration data are obtained for any of the guiders. Consequently, there is no calibration association for the guide camera data.
World Coordinate System (WCS)
The World Coordinate System (WCS) in the headers of the guider images is approximate and based on the pointing origin, camera rotation, and camera pixel scale. Users requiring more accurate WCS solutions will need to refine the WCS using visible stars in the images.
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).
