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HINODE Operation Plan (HOP)

accepted on


 HOP No.

 HOP title

HOP 0443

Stereoscopic monitoring of active regions evolution in coordination with Solar Orbiter

plan term




 name : Parenti, Valori, Orozco Suarez, Strecker,  Hirzberger, Lagg,  Buchlin, Janvier, and the SO/PHI team    e-mail : susanna.parenti[at]ias.u-psud.fr, valori[at]mps.mpg.de, orozco[at]iaa.es, streckerh[at]iaa.es, hirzberger[at]mps.mpg.de, lagg[at]mps.mpg.de, eric.buchlin[at]ias.u-psud.fr, miho.janvier[at]universite-paris-saclay.fr

contact person in HINODE team

 name : DeRosa, Shine    e-mail : derosa[at]lmsal.com, Shine[at]lmsal.com

 abstract of observational proposal
Main Objective:
Coordinated observations with the Solar Orbiter (SO) high resolution instruments (PHI, EUI, SPICE) to study the long-term evolution of a tracked active region (AR) during October 29th and 31st, and November 2nd, 3rd, and 6th, 2022. These observations are associated with the R_SMALL_MRES_MCAD_AR-Long-Term SOOP (see link below).

Scientific Justification:
SO was successfully launched on Feb. 10th, 2020, the nominal mission phase started on Jan 1st, 2022. All its onboard instruments are performing nominally and were commissioned during the early phase of the mission. Among them, SO/PHI provides maps of the vector magnetic field and line-of-sight velocities with two telescopes (Full Disk Telescope, FDT, and HRT); SPICE is the UV spectrometer and EUI/HRIEUV is the coronal high cadence/spatial resolution imager which provide transition region and coronal plasma parameters.

Scientific goal: The proposed HOP is planned to run in parallel with 5 instances of the R_MRES_MCAD_AR_Long_Term SOOP over 5 days. Each of the instances will follow an AR (not necessarily the same target for all of the 5 instances), combining observations by SO and Earth-bound observatories. Each instance of the SOOP has a duration approximately ranging from 9 to 12 hours. The target ARs will be selected at a time when they are visible from both SO and Earth-bound observatories, thus making the combined observation suitable for stereoscopic studies. The scientific rationale behind the HOP is to combine data from different instruments to study the ARs composition and outflows for the science connection with the in-situ instruments on Solar Orbiter. Additionally, possible filament formation and stability, evolution of magnetic helicity in AR, and, possibly, CME triggering are among our goals. The SOOP is planned to take place from October 29th to November 6th, 2022. Details about this specific science SOOP are public and can be found in:
During the above planned SOOP, SO will have an angle with Earth varying from -40 to -27 degrees, and a distance to the Sun increasing from 0.45 AU to 0.56 AU. HRT will take data with an hourly cadence during the whole duration of the SOOP, with a corresponding spatial sampling (at disk centre) varying from 163 km to 202 km. In addition, the EUV instruments on board SO (EUI) will provide synoptic full Sun images (HRI/FSI at 10 minutes cadence during the whole duration of the SOOP and bursts of high cadence and high resolution images (EUI/HRI daily bursts of 30 minutes or 1h at 5 sec cadence for the whole duration of the SOOP). The SPICE UV spectrometer will run a combination of high cadence and composition studies.
We request Hinode coverage of the target ARs for each of the 5 instances of the SOOP. The target selection of each instance will happen, approximately, three days in advance of the requested co-observations.

 request to SOT
Science support for the HRT high-resolution campaign.
We request two fast maps, 320”x164”, for each of the 5 instances of the SOOP.
In each observing window, one of the SP observations should start at the beginning of the time interval.
The second one should be co-temporal with the EUI/HRI observation. Specifically, the SP scans should start at
2022/10/29 at 08:45 UT and at 18:40 UT
2022/10/31 at 22:45 UT and at 2022/11/1 at 06:35 UT
2022/11/2 at 11:40 UT and at 19:55 UT
2022/11/3 at 11:40 UT and at 19:55 UT
2022/11/6 at 02:25 UT and at 07:30 UT
Note that we have taken into account the one-hour duration for the SP scan of 320” width, and that the AR will be at the centre of the FoV, resulting in SP starting to observe 20 minutes earlier than the corresponding SOOP observation window. Adjustments might be necessary. The important point is that the AR is contained within the FoV and the time of SP scans overlap with the corresponding time of PHI-HRT observations given in “Target of Interest”.
Pointing: Active region. Ponting coordinates will be likely provided 3 days in advance of the start of the co-observing time, at the latest.
Telemetry requirement is expected to be 600 Mbits for each map, ie 12000 Mbits for the whole HOP. In the case of telemetry conflict with other HOPs, we would
1) Reduce to one scan per instance (total of 5 scans), priority should be given to the scan at the same time as EUI/HRI observations
2) Accept a reduced width of the field of view, as long as the AR is contained within the FoV and the time of SP scans overlap with the corresponding time of PHI-HRT observations given in “Target of Interest”

 request to XRT
On each day of the SOOP we would like to run the Al/poly at 30s cadence (or less) once a day, during the the high cadence of EUI/HRIs, which from 19:00 to 19:30 on 2022/11/29; from 06:55 to 07:25 on 2022/11/31; from 20:15 to 20:45 on 2022/11/02 and 2022/11/03; from 07:50 to 08:20 on 2022/11/06.
Outside of these times, we would like to run the same filter at 1 min cadence for the rest of the observing slot. If there are telemetry constraints, timing and cadence will be discussed with the EIS CO at least four weeks in advance of the observation dates.

 request to EIS
EIS in parallel with ‘SPICE_COMPOSITION’ study:
o Run 1 ID 600 (DHB_007v2) followed by 2 runs of ID 381 (YKK_ARabund01).
 Do not run 1 YKK_ARabund01 alone.
o If we need to reduce the TM: run 1 ID 600 (DHB_007v2)
・ October 16th 23:25 - 17th 06:59 UT
・ October 19th 05:00 - 07:39 UT
・ October 26th 03:50 - 10:20 UT
o 1 Run ID 600 (DHB_007v2) or more depending on the TM:
・ October 18th 03:10 - 07:00 UT
・ October 20th 03:10 - 07:00 UT
・ October 20th 23:15 - 21st 03:07 UT
・ October 22nd 03:20 - 07:55UT If enough TM only.
・ October 22nd 21:00 - 23st 00:47 UT.
・ October 23rd 19:55 - 23:10 UT. If enough TM run also YKK_ARabund01.
・ October 24th 23:20 - 25st 02:35 UT
・ October 25th 19:54 - 25st 23:09 UT
・ October 29th
・ November 1st
・ November 2nd
・ November 3rd
・ November 6th

EIS in parallel with ‘SPICE_DYNAMICS’ study: Be sure that the run is within the high cadence slot time of EUI/HRIEV (see https://docs.google.com/spreadsheets/d/120XJuJ8ZQv8Aj1bH_9WUuwHfSKXX2tgdRpuYf-cVPOs/edit#gid=1607350597). EIS study: raster ID 495EIS_HH_frare_raster_v5
o October 17th 07:00 - 24:00 UT. Priority given to cover earlier than 23:03UT.
    o EUI high cadence 2022-10-17 07:00 - 2022-10-17 07:30 UT
o October 18th 07:55 - 24:00 UT. If enough TM, start 1h earlier.
    o EUI high cadence 2022-10-18 14:00 - 2022-10-18 14:30
o October 19th 07:40 - 24:00 UT. Priority given to cover earlier than 23:00UT.
    o EUI high cadence 2022-10-19 19:00 - 2022-10-19 20:00
o October 20th 08:00 - 23:05 UT. If enough TM, start 1h earlier.
    o EUI high cadence 2022-10-20 19:05 - 2022-10-20 20:05
o October 21th 07:55 - 24:00 UT. Priority given to cover earlier than 23:00UT. If enough TM start at 03:10UT.
    o EUI high cadence 2022-10-21 19:05 - 2022-10-21 20:05
o October 22nd 08:00 - 20:46 UT.
    o EUI high cadence 2022-10-22 19:05 - 2022-10-22 19:35
o October 23nd 06:30 - 19:51 UT. If enough TM, start earlier. Priority to the extra composition after 23 UT (see above).
    o EUI high cadence 2022-10-23 19:05 - 2022-10-23 19:35
o October 24th. 08:00 - 22:19 UT. If enough TM start earlier (after 03:15 UT).
    o EUI high cadence 2022-10-24 19:05 - 2022-10-24 19:35
o October 25th. 07:10 - 19:50 UT.
    o EUI high cadence 2022-10-25 19:05 - 2022-10-25 19:35
o October 26th. 10:20 - 23:06 UT.
    o EUI high cadence 2022-10-26 19:05 - 2022-10-26 19:35
o October 29th. Priority starting after 23:30 October 31st
o October 31st
o November 2nd. Priority given to cover earlier than 22:34 UT.
o November 3rd. Priority given to cover earlier than 22:30 UT.
o November 6th. Priority given to cover earlier than 08:21 UT.

 other participating instruments

Solar Orbiter/SPICE/EUI detailed planning and other useful information for the coordination: https://docs.google.com/spreadsheets/d/120XJuJ8ZQv8Aj1bH_9WUuwHfSKXX2tgdRpuYf-cVPOs/edit#gid=1607350597 This includes the pointing coordinates as seen from Earth.

Target: At the beginning of the sequence, priority will be given to a structure on the east quadrants, as seen from Solar Orbiter. This means east limb or close to the limb as seen from Earth.

When on the disk, tracking mode ON. For limb observations, this will to be confirmed.

Dates: We request support for scientific activities during the SO PHI/EUI/SPICE high-resolution observations, which occur on
On each day of the requested interval, the same set of observations for SOT, EIS, and XRT are requested. Solar Orbiter will run the observations for about 12h for each day. We request Hinode to follow as much as possible with a minimum of 6h.

Time window: The 5 instances of the SOOP’s observation window will be on
2022/10/29, from 06:45 UT to 21:00 UT
2022/10/31 at 23:05 UT to 2022/11/1 at 11:55 UT
2022/11/2, from 11:57 UT to 2022/11/3 at 00:00 UT
2022/11/3, from 12:00 UT to 2022/11/4 at 00:00 UT
2022/11/6, from 02:45 UT to 09:40 UT
(Note that the SOT observations below will start 20 minutes before the beginning of each observing window listed above.)

Target(s) of interest: The SO team will determine the target ARs at least three days before each
observing window listed above. There is the possibility that the target will stay the same for more than one instance.
For reference, the SO position on the beginning/end of the HOP is (Ecliptic longitude and latitude distance from Earth in degrees)
October 29th: -39.72 7.42
November 6th: 26.47 7.94

Additional remarks:
Tracking pointing ON.
Pointing requires special coordination between SO and Hinode teams. The exact pointing coordinates (AR) will be provided about three days in advance of the requested Hinode observation.

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