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Python library for science observations from the James Webb Space Telescope
https://jwst-pipeline.readthedocs.io/en/latest/
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Incorrect NIRSpec gain reference files #6248

Open stscijgbot-jp opened 3 years ago

stscijgbot-jp commented 3 years ago

Issue JP-2221 was created on JIRA by Michael Regan:

The NIRCAM gain files do not allow the correct calculation of the Poisson noise in the science data. The gain file needs not be corrected for IPC. The IPC correction is needed to calculate the total number of detected electrons but the post-IPC gain file will overestimate the Poisson noise. IPC causes a reduction in the observed Poisson noise thus using a gain file that has been corrected for IPC will yield an overestimate of the Poisson noise.

This will affect the noise calculation of the jump step and the weighting in the ramp_fitting step.

hbushouse commented 2 years ago

Closing this issue, because all of the work to be done is assigned to the INS MIRI team and does not involve any code changes.

stscijgbot-jp commented 7 months ago

Comment by Michael Regan on JIRA:

There are three instruments listed here. I mentioned 2 and Howard added another one. It's not clear to me that any work was done.

stscijgbot-jp commented 7 months ago

Comment by Howard Bushouse on JIRA:

Reopening until new gain ref files are delivered. But for which instrument? The title of ticket says "NIRSpec", but the description and "Instrument" field both list NIRCam. Which is it?