HOP 0440

HINODE Operation Plan (HOP)

accepted on

14-jul-2022

HOP No.

HOP title

HOP 0440

Magnetic evolution inside coronal holes

plan term

ToO
2022/08/15-2022/08/15
2022/08/17-2022/08/17

contact person in HINODE team

name :

DeRosa, Shine

e-mail :

derosa[at]lmsal.com, shine[at]lmsal.com

abstract of observational proposal

Main Objective: Understand the magnetic evolution of coronal holes

Scientific Justification: These observations will support an LWS-funded project to study the effects of high resolution magnetograms (as compared to HMI) on the coronal dynamics in a time-dependent data-driven MHD model. The preferred target is a low latitude coronal hole or polar coronal hole extension near disk center. We need large FOV (40"x60"), high cadence (<12m), and long duration (>4 hours) timeseries of SP scans. The SP data will be inverted using SIR.

request to SOT

We request that Hinode SP conduct repeating 46"x60" scans similar to this dataset (https://www.lmsal.com/hek/hcr?cmd=view-event&event-id=ivo://sot.lmsal.com/VOEvent%23VOEvent_ObsSP2016-01-05T11:19:39.376.xml). I believe that dataset has 5.5 minutes of dwell time between scans, which I hope could be eliminated or reduced. Please use rotation tracking.

other participating instruments

IRIS requests: None

Additional instrument coordination:
AIA should not be running calibration maneuvers.

Previous HOPs: None

Additional remarks:
Thank you for your help!

remarks

Dates: ToO

Time window: It is highly preferable for modeling to not have any temporal gaps in the data.

Target(s) of interest: The target is a low latitude coronal hole or polar hole extension. Please observe near/across the boundary nearest to the central meridian. Quiet sun data would also be useful but the best targets (long lived equatorial coronal holes) are only available a fraction of the time (5-10%).