New coronal hole observations

Following the discovery of the "dark jets" from the HOP 177 data, a number of new coronal hole observations have been organized by Young & Muglach and these are presented here.

2013 Apr 3

Seven repeats of the study 'eis_swap_ar' were run from 09:45 to 14:41 UT. One EIS jet is seen, and there is a nice plume within the coronal hole.

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2013 Apr 29

This observation used the study designed by Peter Young ('issi_jet_1') but was actually organized as part of HOP 217. The pointing was a small on-disk coronal hole near an active region. The most interesting thing in the data-set is the emergence of a bright point during the 1.3 day duration of the observation.

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2013 May 29

Six repeats of the study 'issi_jet_1' were run from 18:36 to 04:10, followed by a single run of 'GDZ_300x384_S2S3_40s'. The latter is a larger format raster that takes more emission lines. The target was an isolated, low-latitude coronal hole.

2013 Dec 21 (Hinode + IRIS)

A coordinated observation of a bright point within a coronal hole was obtained between 10 and 18 UT on 21 December 2013. All three Hinode instruments participated as well as IRIS.

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2014 Jan 10 (Hinode + IRIS)

A coordinated observation of the north pole coronal hole was scheduled between 18:00 Jan-10 and 06:00 Jan-11. The Hinode plan had to be loaded three days in advance so a large format raster was scheduled. For IRIS however, I recommended a specific bright point to observe using the same study used on 21-Dec-2013.

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2014 Dec 26-28 (Hinode only)

This was run during the Hinode Christmas period plan. The south coronal hole was monitored for almost 2 days.

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