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  1. ACS STAN March 2025

    March 25, 2025
    ACS NEWSLETTERS

    This STAN describes STScI Helpdesk updates and Cycle 33 proposal reminders.

  2. ACS STAN January 2025

    January 10, 2025
    ACS NEWSLETTERS

    This STAN describes the new serial CTE correction introduced to CALACS, documentation for HST Cycle 33, a new “fleck” on WFC detector and corresponding updates to the BPIXTAB reference file, and ACS posters for the January 2025 AAS meeting.

  3. ACS STAN October 2024

    October 8, 2024
    ACS NEWSLETTERS

    This STAN describes the HST Call for Cycle 32 Bridge Programs with ACS/WFC and WFC3/IR, and upcoming Serial CTE correction to CALACS.

  4. ACS STAN November 2023

    November 29, 2023
    ACS NEWSLETTERS

    This STAN describes the introduction of slitlessutils, a new wide-field slitless spectroscopy package, the new release of the ACS/WFC Focus-Diverse ePSF Webtool, and updates to ACS and WFC3 dither patterns and HSTaXe cookbooks.

  5. ACS STAN June 2023

    June 5, 2023
    ACS NEWSLETTERS

    This STAN describes the Alpha Release of the Pandeia-based HST Exposure Time Calculator (ETC), updates regarding SBC Dark Rate Monitoring, and the release of acstools version 3.6.1.

  6. ACS STAN April 2023

    April 4, 2023
    ACS NEWSLETTERS

    This STAN describes a new ACS Observing mode, Imaging Spectropolarimetry, and the release of HSTaXe Version 1.0.3 and HST Cycle 31 ACS Documentation.

  7. ACS STAN December 2022

    December 30, 2022
    ACS NEWSLETTERS

    This STAN describes updates to ACS software tools, ACS/WFC sky backgrounds, corrections to the pre-defined dither pattern ACS-WFC-DITHER-BOX, and the replacement of Astroconda by stenv.

  8. ACS STAN December 2020

    December 17, 2020
    ACS NEWSLETTERS

    This STAN describes updates to the ACS WFC flux calibration, geometric distortion, read noise, and documentation.

  9. ACS STAN October 2019

    October 25, 2019
    ACS NEWSLETTERS

    This STAN describes updates to the absolute flux calibration of the ACS SBC detector and a bug fix to IVM weighting in AstroDrizzle.

  10. ACS STAN January 2019

    January 15, 2019
    ACS NEWSLETTERS

    This STAN details updates to the Instrument and Data Handbooks, ACS software tools, reference files, a newly implemented SBC aperture, and a variety of ACS related tutorials written in Jupyter notebooks.

  11. ACS STAN May 2012

    May 1, 2012
    ACS NEWSLETTERS

    This STAN covers release of CALACS 2012.2 and new CTE-corrected data products and updated photometric zeropoints for WFC and HRC.

Last Updated: 10/28/2024

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