EMICORR for MIRI LRS slitless data leaves horizontal structures in the data

[stscijgbot-jp]

Issue JP-3597 was created on JIRA by Andreea Petric:

The emircorr step aims to remove the 390Hz noise pattern in rate and rateints calibrated products, as that pattern is prominent in rate images with short integrations. We ran the JWST pipeline version 1.13.4 and 1.14.0 as well as the development version 1.14.1.dev18+g9429dc65. with crds jwst_1223 and jwst_1225 pmas and found that the noise structure was still present. However, because the faint and regular 390Hz noise structures may not have a dramatic limiting impact on science, we label this as medium critical. 

[stscijgbot-jp]

Comment by David Law on JIRA:

Adding a note that Michael Regan and Eddie Bergeron have been looking into this and found that the issue is specifically with data with exactly 7 groups (with an 8th reset group), for which the 390 Hz noise is in phase and cannot be removed by the current approach.  Discussion ongoing within the MIRI team on what the best path forward is.