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spacetelescope / romancal

Python library to process science observations from the Nancy Grace Roman Space Telescope
https://roman-pipeline.readthedocs.io/en/latest/
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Test resampling to an external WCS #928

Open stscijgbot-rstdms opened 1 year ago

stscijgbot-rstdms commented 1 year ago

Issue RCAL-690 was created on JIRA by Nadia Dencheva:

Generate a regression test resampling to an external image of a size smaller than the input with a pixfrac < 1. May use Nircam observations.

stscijgbot-rstdms commented 1 year ago

Comment by Eddie Schlafly on JIRA:

I may have it wrong, but pixfrac is the ~size of the droplets that get drizzled relative to the native pixel scale?  I think pixfrac < 1 is an important case (i.e., to get an oversampled image), but pixfrac > 1 is not something I expect to see much use.

stscijgbot-rstdms commented 1 year ago

Comment by Nadia Dencheva on JIRA:

My bad! Yes, pixfrac<1 is the case we are interested in (corrected the definition above).