IHOP 266 observations of coronal hole boundar plume on 17-Oct-2017
There was a low-latitude extension to the north coronal hole,
and this sequence was right at the boundary. The AIA movies below show
a weak plume in 171 (note how the hotter plumes around it are better
seen in 193). There's a little bright point at the base of the plume and
this is actually caught with the EIS slit.
images below are EIS time series images in He II 256 (left) and Fe XII
195 (right) from the raster beginning at 11:03 UT. The short-lived
brightenings at Y=290 correspond to the bright point. This activity
continues for the complete EIS sequence.
EIS ran three Cool_loop_stare rasters consecutively from 11:03
to 13:56 UT.
SP ran a 27"x61" raster repeatedly with full resolution between 10:31 and 16:30 UT.
IRIS ran a 96-step dense raster 57 times during 10:20 to 18:10
Page maintained by Dr Peter R Young.