Sample workbooks are designed with illustrative calculations to help users get started in using the JWST Exposure Time Calculator (ETC).
The "Available Workbooks" pane can be populated by retrieving a set of sample workbooks which include calculations for all four JWST instruments. These workbooks are organized by observing modes which are imaging, slitted, slitless and IFU spectroscopy and coronagraphy. Workbooks include pre-defined source and scenes for calculations. The sample workbooks can assist users in scenes, sources and calculations from basic to more complex calculations.
Workbooks available to users are listed in the "Available Workbooks" pane. This list can be populated by either adding workbooks from the sample workbooks list, creating a new workbook by clicking the "Create New Workbook" button and also if a workbook is being shared. Please visit the sharing workbooks page to learn more about sharing workbooks.
A description of each column name is below:
#: Workbooks can be referenced by an ID number.
Name: The name of the available workbook.
Load: Load and access sample workbook.
Description: Brief description of the calculations contained in the workbook.
Options: Users can create a new copy or remove the workbook from their list of available workbooks.
Sample workbooks are designed to help users become acclimated with the Exposure Time Calculator (ETC) and various instrument modes. This can include basic point source imaging for utilizing sensitivity calculations of each JWST instrument, imaging with multiple extended sources, coronagraphy, slitted spectrograph and slitless IFU calculations.
From the "Available Workbooks" pane, click the "Get a Copy of the Sample Workbooks" button to obtain a list of sample workbooks. Once a sample workbook of interest is clicked, an independent copy is added to a users list of available workbooks. To access the sample workbook, click on "load". The user can modify these workbooks for their own ETC calculations. The sample workbooks that have been copied are independent copies, and modifying them does not affect the master workbook. Users can always go back to the landing page and get another copy of the sample workbook provided with the ETC. When a workbook is opened it is on the Calculations tab by default. There are pre-defined scenes and sources already available, and they have been created to illustrate the features that are most relevant to the observing mode with the given instrument. Note that any given workbook (for example, with slitless spectroscopy calculations) contains calculations for different instruments that allow that specific observing mode. The Calculations tab typically has a "Notes" pane explaining each calculation. These workbooks allow users to see the affected calculations for one or more sources in a scene.
Pontoppidan, K. M., Pickering, T. E., Laidler, V. G. et al., 2016, Proc. SPIE 9910, Observatory Operations: Strategies, Processes, and Systems VI, 991016 ,
Pandeia: a multi-mission exposure time calculator for JWST and WFIRST