Step Arguments

The tso_photometry step has the following optional arguments:

• --save_catalog (boolean, default=False)

  If save_catalog is set to True, the output table of times and photometry will be written to an ecsv file with suffix “phot”.

  Note that when this step is run as part of the calwebb_tso3 pipeline, the save_catalog argument should not be set, because the output catalog will always be saved by the pipeline module itself. The save_catalog argument is useful only when the tso_photometry step is run standalone.

• --radius (float, default=3.0)

  A floating point value for the photometric aperture radius in pixels.

• --radius_inner (float, default=4.0)

  A floating point value for the background annulus inner radius in pixels.

• --radius_outer (float, default=5.0)

  A floating point value for the background annulus outer radius in pixels.

• --centroid_source (boolean, default=True)

  If True, the source position will be derived from a centroid near the planned position before computing the photometry. If False, the planned source position will be used directly.

• --search_box_width (integer, default=41)

  If centroid_source is True, then this value is used as the full width of the box used for an initial search for the source. The value must be an odd integer.

• --fit_box_width (integer, default=11)

  If centroid_source is True, then this value is used as the full width of the box used for a final fit to the source. The value must be an odd integer.

• --moving_centroid (boolean, default=False)

  If centroid_source is True, a centroid is fit to each integration. If moving_centroid is True, these centroids are used directly to compute the photometry for each integration, such that the source position is allowed to vary over the exposure.

  If moving_centroid is False, the median of the computed centroid positions is taken to be the “true” source position, and is used for every integration in the exposure. That is, the source position is NOT allowed to vary over the exposure.