Release Notes for ETC 24.1

New Features

Welcome to ETC 24.1. This version of the ETC implements several new features, notably:

General

  • Nothing to report.

ACS

  • Wavelength range checking is now performed for ACS ramp filter calculations before a calculation is submitted

COS

  • Nothing to report.

STIS

  • Buffer time is now reported for STIS MAMA calculations.

WFC3

  • Scan mode support has been introduced for WFC3/IR spatial scan imaging, WFC3/IR spatial scan spectroscopy, and WFC3/UVIS spatial scan imaging. Three new dedicated ETCs have been implemented for this purpose; links to them have been added to the landing page and the left-hand navigation column under the appropriate modes. Note that the input value options are not quite the same as for stare mode; users should read the options carefully.

Documentation

  • The wording of various sections of the user’s guide has been improved for clarity, and additional information has been provided for the new WFC3 scan modes.

Under the hood

  • Instrument data values have been updated for WFC3. (No updates were necessary for ACS, COS, or STIS.)

Resolved Issues

This version resolves the following issues:

General

  • Most cases of invalid target specifications will now return a more meaningful error.

ACS

  • Nothing to report.

COS

  • The reset button now correctly resets the disperser for wavelength checking.

STIS

  • The reset button now correctly resets the disperser for wavelength checking.
  • The scattered light from the echelles,which was previously incorrectly included in the plots and tables (but not in the scalar results) has been removed from these products.

WFC3

  • Nothing to report.

Known Issues

Please see the News and Known Issues page for known issues with this release.

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