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HINODE Operation Plan (HOP)

accepted on


 HOP No.

 HOP title

HOP 0421

Coordinated observation with the MaGIXS sounding rocket

plan term




 name : Savage, Winebarger, Kobayashi    e-mail : sabrina.savage[at]nasa.gov, amy.r.winebarger.nasa.gov, ken.kobayashi-1[at]nasa.gov

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: Distinguish heating frequency modes in active region core

Scientific Justification: The Marshall Grazing Incidence X-ray Spectrometer (MaGIXS) provides soft X-ray spectra (6-24 Angstroms) and spatial information along a 12’ x 33’ slot.  The MaGIXS bandpass is dominated by high temperature emission lines, with key lines of Fe XVII, Fe XVIII, Fe XIX, Ne IX, and O VII.  The primary science goal for this instrument is to determine the loop heating frequency in solar active regions in order to distinguish between low (nanoflare) and high (wave) frequency heating sources.  To this end, MaGIXS will be able to detect and qualify high-temperature, low-emission-measure plasma in the active region core through a single optical path at rapid cadence (~1-2 seconds).  Coordinated observations with Hinode and IRIS broaden the available spectral and temperature distribution, bound the AR photospheric field, and provide key soft X-ray, high cadence contextual information.

 request to SOT
A single 260”x162” SP fast map centered on the AR core with the scan time overlapping the launch window.

 request to XRT
384x384 centered on brightest AR core
Short exposure time AEC

During one hour launch window, highest cadence possible (not slower than 10s).
At least one hour before and after launch window, lower cadence to within telemetry limits.

Run the observations through the SAA periods (remove the BAD_PHOTO events). For high cadence observations (~10s), use FLD #0018 to reduce interruption by flare patrol images. FLD #0018 uses Al/poly filter and takes an FLD image every 80s.

 request to EIS
Before and after launch window:
HPW021VEL260x512v2 (repeat as telemetry allows)
・260 x 512 arcsec
・3 arcsec steps
・40s exposures

During launch window:
HIC2_SCAN_201X512 (a wider coarse scan with expanded linelist)
・201 x 512 arcsec
・10 arcsec steps
・15s exposures

 other participating instruments
Before launch window: 2 runs of this OBS:
3600106078  |  Very large dense 400-step raster 131.7”x175" 400s   Deep x 4 Spatial x 2  |    2082.90    |3095.35    |      1.01     |  5.2+/-0.1 | 2083+/-0 | 20.8+/-0.0 | 20.8+/-0.0 | 20.8+/-0.0 | 20.8+/-0.0

During launch window, make sure OBS is running (taking data) by beginning of launch window: 1 hour of
3600104024  |  Very large coarse 4-step raster 6x175 4s   Deep x 2 Spatial x 2, Spect  |      12.83 |30.95    |      1.64     |  3.2+/-0.1 | 12.9+/-0.0 | 12.8+/-0.0 | 12.8+/-0.0 | 12.8+/-0.0 | 12.8+/-0.0

After launch window: 2 runs of
3600106078  |  Very large dense 400-step raster 131.7”x175" 400s   Deep x 4 Spatial x 2  |    2082.90    |3095.35    |      1.01     |  5.2+/-0.1 | 2083+/-0 | 20.8+/-0.0 | 20.8+/-0.0 | 20.8+/-0.0 | 20.8+/-0.0

NuSTAR (Potential)

Dates: Launch is currently scheduled for 2021 July 30.

Time window: Launch window will begin at ~ 19 UT +/- 1 hour.  The launch window will be open for 1hour. The rocket team will coordinate more refined timing with the planners in advance.

Target(s) of interest: Active region (the rocket team will coordinate target with the planners in advance)

Previous HOPs:HOP 318 (Hi-C II Sounding Rocket Support), HOP 350 (Hi-C 2.1 Sounding Rocket Support)

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