NIRCam APT Templates
A JWST observing program that uses the NIRCam instrument is designed by using the one of the NIRCam templates in the Astronomer's Proposal Tool (APT).
On this page
NIRCam offers 5 observing modes: imaging, coronagraphic imaging, time-series imaging, grism time series, and wide field slitless spectroscopy. Each mode has its own APT template.
Step-by-step in APT
The step-by-step instructions for using the NIRCam observing templates in the APT are provided in the following articles:
- NIRCam Imaging APT Template
- NIRCam Coronagraphic Imaging APT Template
- NIRCam Time-Series APT Template
- NIRCam Grism Time-Series APT Template
- NIRCam Wide Field Slitless Spectroscopy APT Template
Additional information on all available options and restrictions for NIRCam templates are available in NIRCam Templates articles at the Proposal Parameters Documentation outside JDox.
NIRCam templates and observing capabilities
Table 1. Summary of NIRCam APT templates and observing capabilities
Available Features | Imaging | Coronagraphic imaging | Time-series imaging | Grism time series | Wide field slitless spectroscopy |
---|---|---|---|---|---|
Overview | Overview | Overview | Overview | Overview | |
Dithering | Highly Recommended | Optional | Highly Recommended | ||
Mosaics | Available | Available | |||
Coronagraphs available | occulting masks and Lyot stops | ||||
Weak lens available (0.6–2.3 µm) | WLP8 | WLP4, WLP8 | |||
Grisms available (0.6–5.0 µm) t | long-wave Grism R short-wave DHS Grisms t | Grism C, R | |||
Exposures longer than 10,000 seconds | Allowed* | Allowed* |
* Warning: the high gain antenna may move during exposures longer than 10,000 seconds.
t New for Cycle-4.
Creating an APT observation
Words in bold are GUI menus/
panels or data software packages;
bold italics are buttons in GUI
tools or package parameters.