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PreCam a step towards the Photometric Calibration of the Dark Energy Survey

Apr 17, 2012, 4:20 PM


Paper Large Surveys and Missions (General) Session 2D


Dr Sahar Allam (Fermilab)


The Dark Energy Survey (DES) will be taking the next step in probing the Dark Energy and understanding of the physics of cosmic acceleration. A step towards the photometric calibration of DES, is to have a quick, bright survey in the DES footprint (PreCam), using a prototype of Dark Energy Camera (DECam) CCDs and DES filter set. The objective of PreCam Survey is to create a network of calibrated DES grizy standard stars that will be used for DES nightly calibrations to improve the DES global relative calibrations. We describe the first year of PreCam observation, results and nightly calibration.

Primary author

Dr Sahar Allam (Fermilab)

Presentation materials