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HINODE Operation Plan (HOP)

accepted on

17-feb-2022

 HOP No.

  HOP title

HOP 0434
Coordinated Hinode-IRIS-Solar Orbiter observations on Slow Solar Wind Connection

plan term

2022/03/03-2022/03/06
2022/03/17-2022/03/22

 　 　

proposer

  name : Yardley, Baker, Matthews, Brooks, Long 　  e-mail : stephanie.yardley[at]ucl.ac.uk

contact person in HINODE team

  name : Matthews, Culhane 　  e-mail : sarah.matthews[at]ucl.ac.uk, j.culhane[at]ucl.ac.uk

 abstract of observational proposal
Main Objective: Coordination of Hinode/EIS and IRIS with SO/SPICE observations taken during the slow solar wind connection SOOP (observation window 1: from 03-03-2022 at 06:00 UT to 06-03-2022 at 18:30 UT, window 2: from 18-03-2022 at 06:00 UT to 22-03-2022 at 00:00 UT)

Scientific Justification:
Main Objective: We propose a joint observing campaign using both Hinode/EIS and IRIS along with Solar Orbiter in order to investigate the physical processes involved in the release of the slow solar wind at active region or coronal hole boundaries. Identifying the origin of the slow solar wind and understanding the physical mechanisms involved in releasing solar wind plasma into the heliosphere are among the most important goals of current research in heliophysics. Due to the launch of recent spacecraft such as Solar Orbiter (Muller et al. 2020) there isalso great interest in connecting measurements made in situ in the solar wind with remote sensing observations to identify source regions and characterise their physical properties. Recent studies (e.g. Yardley et al. 2021, Stansby et al. 2021, Tian et al. 2021) have shown that there are persistent upflows of coronal plasma at the boundary of active regions that could be slow solar wind sources and models have suggested interchange reconnection at coronal hole boundaries could also be a source (e.g. Antiochos et al. 2011).

We would like to take advantage of the opportunity to coordinate remote sensing observations of Hinode and IRIS with remote and in situ observations from Solar Orbiter during the two observation windows of the slow wind connection SOOP that has been scheduled to take place between 3rd and 6th March 2022 (~3 days) and 18th and 22nd of March 2022 (~5 days). We aim to use this coordinated observing  campaign to:
- Link in-situ plasma to specific coronal source regions
- Observe magnetic field configuration and evolution at an open-closed boundary
- Identify signatures of interchange reconnection at open-closed magnetic field boundaries

 request to SOT
None

 request to XRT
Exact details to be coordinated with the chief planner.
AR Boundary:
Alternate between temperature and dynamics study. Two filter observations (Al-poly and thin-Be) with 2 minute cadence and FOV 384” x 384”. Run as often as possible in coordination with EIS.

CH Boundary:
Dynamics study. Al-Poly with 30s cadence and FOV of 384” x 384”. Run as often as possible in coordination with EIS.

 request to EIS
Exact details to be coordinated with the chief planner.

Pointing: disk observation of either outflows at an active region boundary or a coronal hole boundary.

Active region boundary:
When SO/SPICE runs SPECTRATLAS, Hinode/EIS runs Spectral atlas, Atlas_60 (ID 404, FOV: 120"x160”, Exp: 60s, Dur: 65 mins, Tel: 257 Mbits)
At any other time, during the rest of the observing window when SO/SPICE runs COMPOSITION/DYNAMICS, Hinode/EIS runs Abundance raster DHB_007_v2 (ID: 600, FOV: 246”x512”, Exp:60s, Dur: 68 mins, Tel: 114 Mbits). Please run as many times as possible.

Coronal hole boundary:
When SO/SPICE runs SPECTRATLAS, Hinode/EIS runs Spectral atlas, Atlas_120 (ID: 405, FOV: 120"x160", Exp: 120s, Dur: 128 mins, Tel: 257 Mbits).
At any other time, during the rest of the observing window when SO/SPICE runs COMPOSITION/DYNAMICS, Hinode/EIS runs HPW021VEL240x512v2_b (ID: 524, FOV: 240”x512”, Exp: 100s, Dur: 215 mins, Tel: 174 Mbits). Please run as many times as possible.SO/SPICE will run SPECTRATLAS during the following time windows:

Observation window 1:
3/3/22 06:00 - 06:54 UT,
4/3/22 09:50 - 10:44 UT,
5/3/22 07:00 - 07:54 UT

Observation window 2:
EIS Atlas and abundance studies have highest priority, so we are willing to sacrifice XRT observations if there is a possibility of additional telemetry for those observations.

If the target is an AR boundary:
17/3/22:
06:10 - 07:15 UT - Atlas_60 (ID 404)
07:15 - 06:30 UT (18/2/22) - Please run DHB_007_v2 (ID: 600) as often as telemetry constraints allow
18/3/22:
06:30 - 07:35 UT - Atlas_60 (ID 404)
07:35 - 07:00 UT (19/3/22) - Please run DHB_007_v2 (ID: 600) as often as telemetry constraints allow
19/3/22
07:00 - 08:05 UT  - Atlas_60 (ID 404)
08:05 - 07:30 UT (20/3/22) - Please run DHB_007_v2 (ID: 600) as often as telemetry constraints allow
20/3/22
07:30 - 08:05 UT - Atlas_60 (ID 404)
08:05 - 08:00 UT (21/3/22) - Please run DHB_007_v2 (ID: 600) as often as telemetry constraints allow
21/3/22
08:00 - 09:05 UT - Atlas_60 (ID 404)
09:05 - 23:00 UT - Please run DHB_007_v2 (ID: 600) as often as telemetry constraints allow

If the target is a CH boundary:
17/3/22
06:10 - 08:20UT - Atlas_120 (ID: 405)
08:20 - 06:30 UT (18/3/22) - Please run HPW021VEL240x512v2_b (ID: 524) as often as telemetry constraints allow
18/3/22
06:30 - 08:40 UT - Atlas_120 (ID: 405)
08:40 - 07:00 UT (19/3/22) - Please run HPW021VEL240x512v2_b (ID: 524) as often as telemetry constraints allow
19/3/22
07:00 - 09:10 UT  - Atlas_120 (ID: 405)
09:10 - 07:30 UT (20/3/22) - Please run HPW021VEL240x512v2_b (ID: 524) as often as telemetry constraints allow
20/3/22
07:30 - 09:40 UT - Atlas_120 (ID: 405)
09:40 - 08:00 UT (21/3/22) - Please run HPW021VEL240x512v2_b (ID: 524) as often as telemetry constraints allow
21/3/22
08:00 - 10:10 UT - Atlas_120 (ID: 405)
10:10 - 23:00 UT - Please run HPW021VEL240x512v2_b (ID: 524) as often as telemetry constraints allow

 other participating instruments
IRIS requests:
Similar to IHOP 0366
Coronal Hole or Active Region: Very large raster
High data rate version: IRIS OBS-ID: 3620259477  |  Very large dense 320-step raster 105.3x175 320s, Si IV, Mg II h/k Dee
Low data rate version: IRIS OBS-ID: 3600109477  |  Very large dense 320-step raster 105.3x175 320s, SiIV, Mg II h/k Dee
Run both programs as often as possible: low data rate version during SO/SPICE COMPOSITION/SYNOPTIC and high data rate during SPECTRATLAS.

Additional instrument coordination:
Coordination with Solar Orbiter

 remarks
Dates: Two observing windows are required in coordination with the slow wind connection SOOP(L_SMALL_HRES_HCAD_Slow-Wind-Connection)
Observation window 1: 03-03-2022 to 06-03-2022 (~3 days)
Observation window 2: 17-03-2022 to 22-03-2022 (~5 days)
Explanation: We require 3 consecutive days of observations to cover the same region as SO/SPICE during the first observation window, followed by 5 consecutive days for the second observation window.

Time window: Time window 1: from 03-03-2022 06:00 UT to 06-03-2022 18:30 UT

Time window 2: from 17-03-2022 06:00 UT to 22-03-2022 00:00 UT
Both in coordination with SO/SPICE observations.

Target(s) of interest: Upflow regions at the boundary of an active region or a coronal hole boundary (on-disk)

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