Plume observation, 28-Sep-2014



This was a fairly weak plume at the boundary of the north coronal hole. The movie below shows the location of the EIS slit on AIA 171 and 193 images. I didn't request the observation and it looks like it was chosen to support an IRIS-SST observation.  My quick inspection of the EIS suggests this is not a particularly interesting observation.


AIA 171 (left) and 193 (right) movies at 5 minute cadence, with position of EIS slit indicated. Logarithmic intensity scaling.

EIS data-set

Four repeats of Cool_loop_stare were run between 08:06 and 11:55, with an initial pointing of (+68,+473). The most striking thing in the EIS data is a compact bright point at about Y=450 that fades during the sequence. This bright point can be identified in the above AIA movie. I don't see any Fe XII dynamics associated with the plume, and Fe IX and Fe VIII are very weak.

IRIS data-set

A 4-step raster was run continuously between 08:08 and 11:36 UT. 600 rasters were run in all. I haven't checked this data.

SOT observation

Ran Na magnetograms and Ca II between 08:04 and 12:29 UT.

Obs_Type
Cadence
Number of frames
Pixel size
Image size
FG Na I 5896 (I & V)
30 secs
528
0.16"
192x512
FG, Ca II H
2 minutes
129
0.11"
352x816


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