calc_deltas

jwst.lib.pointing_summary.calc_deltas(exposures, extra_meta=None)[source]

Create table of pointing deltas.

Parameters:
exposures[file-like[,…]] or [DataModel[,…]]

List of file-like objects or JwstDataModel to retrieve pointing information from.

extra_meta[str[,…]] or None

List of model meta attributes to add to the table.

Returns:
deltasastropy.table.Table

Table of results with the following columns:

  • exposure: The exposure the pointing information is from.

  • target: SkyCoord of the proposed target.

  • v1: SkyCoord of v1.

  • refpoint: SkyCoord of the reference point.

  • delta_v1: target - V1 separation.

  • delta_refpoint: target - refpoint separation.