HOP 58 - Active Region Outflows

Hinode Observing Program (HOP) 58 was created to track the footpoint regions of coronal loops at the edge of an active region continuously for 6 days as the region rotated from the meridian to the west limb. Please download the proposal (pdf format) to find out more details about the science goals and observations required from each of the three instruments. Some key details are:

  • During the 6 days the number of XRT synoptics is reduced to two per day.
  • The EIS data recorder allocation is increased to 32% (from 15%) and the SOT allocation is reduced to 53% (from 70%). The XRT allocation remains the same (15%).
  • The approximate cadence of the EIS observations is 45 minutes.
  • The EIS observation is intended for tracking longer timescale variations over a large spatial area.
  • A single EIS raster is to be used for the entire campaign, PRY_footpoints_HI, with PRY_slot_context used occasionally for context images.

The sections below describe runs of the HOP.

Run 1: 2008 January 10-15

This run was badly affected by the reduced Hinode telemetry which was approximately half the usual rate. The target was a weak active region which was close to an equatorial coronal hole.

Details of the EIS studies run for the HOP are available. PRY_footpoints_HI could only be run sporadically during the 6 days, and the COs scheduled other low data rate studies to fill in parts of the timeline (mainly JTM002). A large fraction of the PRY_footpoints_HI data are not presently in the Hinode archive (indicated as 'missing' in the list) some of these are probably permanently lost.

Fe XII 195 images from each of the runs of PRY_footpoints_HI are available.

SOHO/CDS supported HOP 58 for parts of the 6 day period. The study run was FOOTPT which covered an area of 180"x180" with a 45 min cadence. A list of the CDS studies is available.

This page mantained by Dr.P.R.Young, last revised on 19-Aug-2013