Analysis Tools

This example provides guidelines for simulating the effects of CTE losses on synthetic images or existing CTE-corrected WFC images.

This example demonstrates how to create pixel area maps (PAMs) to account for the effects of geometric distortion in distorted images. This enables users to perform photometry on distorted images (FLTs or FLCs) if desired.

This example demonstrates how to use the CALACS pipeline to re-process raw ACS data retrieved from MAST. 

This example demonstrates how to account for dark current in ACS/SBC observations. The temperature of the SBC detector increases steadily over time while it is in use, and the dark current is proportional to temperature. At temperatures above 25 ºC, the dark current is no longer negligible and must be subracted. 

This example demonstrates how to calibrate, de-stripe, and correct ACS subarray observations for charge transfer efficiency (CTE). Also included are instructions for updating the OCSNTAB reference file to subtract the bias level from the prescan columns in user-defined subarray observations.

The notebook demonstrates how to obtain accurate relative photometry of saturated sources using custom apertures.

This example demonstrates how to utilize polarization_tools in the acstools package to facilitate data analysis of ACS polarization data.

This notebook provides examples on how to find and create masks for satellite trails in ACS/WFC imaging data.