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HINODE Operation Plan (HOP)

accepted on

26-mar-2020


 HOP No.

 HOP title

HOP 0397

Hinode/SOT and PHI Solar Orbiter coordination for commissioning

plan term

2020/03/19-2020/03/19
2020/04/20-2020/04/20
2020/05/13-2020/05/14
2020/05/21-2020/05/21

@ @

proposer

 name : Orozco Suarez @  e-mail : orozco[at]iaa.es

contact person in HINODE team

 name : Savage, Watanabe, De Pontieu @  e-mail : sabrina.savage[at]nasa.gov, watanabe.tetsuya[at]nao.ac.jp, bdp[at]lmsal.com

 abstract of observational proposal
Main Objective: Comparison between SOT SP data and PHI full polarimetric data in order to test the polarimetric calibration and processing of PHI data pipeline

Scientific Justification: Solar Orbiter was successfully launch on Feb.10 2020. All its onboard instruments are being switched on and commissioned during the early phase of the mission. Among them, the Polarimetric and Helioseismic Imager will provide maps of the vector magnetic field and line-of-sight velocities with two telescopes (Full Disk Telescope FDT and High Resolution Telescope HRT). During the first months of the mission the different subsystems of the instrument are being tested. It is expected to have a fully calibrated instrument by the end of May 2020. During the commissioning there are particular windows were the instrument will take full polarimetric observations with the main aim of testing the on-board data processing and the polarimetric calibration. It would be extremely beneficial to have observations taken with the Hinode spectropolarimeter to cross-check the different calibration steps. One of the reasons is the flexibility of the data provided by the spectropolarimeter, which is of same spatial resolution as the one of the PHI HRT. Also, we will be able to increase the wavelength sampling with PHI during commissioning because of the high telemetry at this early stage (something that will be lost when the spacecraft is approaching nominal mission phase due to the long distances).

 request to SOT
For all periods we request BFI G-band images with largest FoV 221"x111", Binning: 2x2, Time resolution: 30 min.
SP: 320"x164" - 1000x( 512x112x1x4) - 60 min  cadence - 600 Mbits

 request to XRT
Non although it would be great if ARs are present so the data can be used with other purposes such as extrapolation with first-light PHI data (FDT or HRT) since the viewing angle will be slightly different, by few degrees. I write TBD.

 request to EIS
Non although it would be great if ARs are present so the data can be used with other purposes such as extrapolation with first-light PHI data (FDT or HRT) since the viewing angle will be slightly different, by few degrees. I write TBD.

 other participating instruments
IRIS requests:  
3620106077 | Very large dense 320-step raster 105.3x175 320s  Deep x 4 Spatial x 2 | 1657.36 | 2051.85 | 0.84 | 5.2+/-0.1 | 1657+/-0 | 20.7+/-0.0 | 20.7+/-0.0 | 20.7+/-0.0 | 20.7+/-0.0

 remarks
Dates:  Periods were PHI will be observing (current plans as of 3 march 2020):
- March 19, 10:22 - 16:22 (UTC). Polarimetric calibration of FDT.Around 11:30 (for one hour). FDT.  
- April 20, 10:21 - 13:51 (UTC). Exact times TBD. HRT.
- May 13, 6:02 - 14:02 (UTC). Exact times TBD. HRT.
- May 14, 5:57 - 12:18 (UTC). Exact times TBD. FDT.
- May 14, ~17:00 - May 15, ~03:00 (UTC). Times TBD. HRT. Different pointings.
- May 25: FDT calibration. Pending plan at SOLO level. May be shifted to early May.

All times may be shift by one or two hours depending on specific activities. This is very difficult to control if exact times have to be provided in advance. Hence, we will request to cover several hours during the expected time to ensure we have the required data. Unfortunatelly, commissioning activities cannot by any means adapted to other observatories. At all times the spacecraft is between Sun and Earth with small viewing angles between them.  

Time window:  Time window will be around three hours at each day: March 19, April 20, May 13,14, and 25. The exact start and end time of observations will be provided in the corresponding telecoms.

Target(s) of interest:  For FDT calibrations disk center is the baseline. In case there are active regions, we would request to point to them. PHI FDT sees the full disk at any time.

For HRT we request disk center as well as baseline since we will not off-point. IF active regions are present and they are NEAR the disk center, we will request pointing AR.  This has to be decided in the corresponding pointing telecoms.
For  May 14, ~17:00 - May 15, ~03:00 (UTC) windows we will provide exact pointings.  

Previous HOPs: Non

Additional remarks: This is a special purpose HOP.

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