Dates: 2024 April 8
Time window: At least 2 hrs (ignoring eclipses observed from Hinode orbit) of PCH observations. Preferably one 2-hr+ block before totality and a second 2-hr+ block after totality. (Totality on the ground in Texas will be at ~18:35 UT, and at ~19:10 UT in Ohio.) In addition, two sets of XRT full-disk images should be taken for context in-between the two blocks. The sequences should be as close to totality as possible, but because plumes are persistent (lasting several hours), within a few hours of either side of totality is sufficient.
Target(s) of interest: Polar plumes, and jets around those plumes, are the target. Pointing should be at a polar coronal hole (PCH) region, similar to HOPs 339 and 376. If two PCHs are visible, select the one that is largest. If no PCHs are visible, then observe one of the polar regions.
Previous HOPs: HOPs 339 and 376. Data from HOP 339 were used in Hanaoka et al. (2018, ApJ, 860, 142), and in Cho et al. (2021, ApJ, 909, 202). |
|