From Obj 4 meeting
This SOOP was inspired on the discussion about Global Helioseismology needs during the Objective 4 meeting in MPS, Göttingen (Oct 2016).
Proposed SOOP Coordinators
M. Roth, J. Hirzberger
Default SOOP duration: 10 days (TBC)
Pointing requirements: Disk Centre
SOOP designed for global helioseismology with PHI/FDT only. The PHI configuration is currently designed to fulfil helioseismology needs for far side imaging - to detect modes passing through the solar core - and for deep focussing. Note that the specified PHI mode is not (yet) part of the predefined PHI modes.
PHI FDT at 1 min cadence, processing to v_LOS only
TBC by PHI that the new mode PHI_globalseismology_FDT_3 (4x4 binning!) does the job.
|Images compressed by binning to 2x2 or cropping when farther away from the Sun.|
Higher compression may possibly be acceptable for far side imaging.
(e.g., orbital requirements, solar cycle phase, quadrature ...)
|4.2.3 Probe the structure in deep layers of the Sun - Deep focussing||Full Disk||several days (e.g. 3 days)||Earth (SDO/HMI) - SC angle between 45 and 60 degrees||10-15Mm resolution, i.e. 2x2 binning at perihelion or cropping further out|
|4.2.3 Probe the structure in deep layers of the Sun - Far side imaging to detect modes passing through the solar core.||Full Disk||As long as possible, 60 days would be ideal but may not be feasible||Earth (SDO/HMI) observations in combi with PHI observations at far side: angle 150 to 210 degrees.||Low resolution, v_LOS only but 1min cadence. Compression can be quite high (TBC how high).|