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).

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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 templates and observing capabilities


Table 1. Summary of NIRCam APT templates and observing capabilities

Available FeaturesImagingCoronagraphic imagingTime-series imagingGrism time seriesWide field slitless spectroscopy

OverviewOverviewOverviewOverviewOverview
DitheringHighly RecommendedOptional

Highly Recommended
MosaicsAvailable


Available
Coronagraphs available
occulting masks and Lyot stops


Weak lens available (0.6–2.3 µm)

WLP8WLP4, WLP8
Grisms available (2.4–5.0 µm)


Grism RGrism C, R
Exposures longer than 10,000 seconds

Allowed*Allowed*


* Warning: the high gain antenna may move during exposures longer than 10,000 seconds.

Information on all available options and restrictions for NIRCam templates are available in the proposal parameters NIRCam Templates articles.



Creating an APT observation

To create a new NIRCam observation, create or choose an Observation Folder* in the tree editor and click Add in the active GUI window. This will add a generic observation to the folder and open an observation form. The observation can be assigned a unique number and a text label (which does not need to be unique). Select NIRCam from the Instrument drop-down parameter field. This populates the Template drop-down field with the NIRCam templates; select one of them to continue working on the specifics of the observation.


* Bold italics style indicates words that are also parameters or buttons in software tools (like the APT and ETC). Similarly, a bold style represents menu items and panels.



References

Information on all available options and restrictions for NIRCam templates are available in the proposal parameters NIRCam Templates articles.




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