Proposed SOOP Coordinators
D. Spadaro, E. Antonucci, A. Giunta, C. Owen
Similar to L_SMALL_HRES_HCAD_Slow-Wind-Connection, but specifically targeted at overexpanded CH boundaries as slow wind sources, requiring a different PHI mode and SPICE observations.
This SOOP was explicitly created to address the science objective "Does slow wind originate from the over-expanded edges of coronal holes?" and does not currently cover any other sub-objectives. The similar SOOP SlowWind Connection addresses all other slow solar wind objectives and mainly involves RS instruments observing the solar disk, even at high spatial resolution.
Default SOOP duration: 1 day
Pointing requirements: Off-pointing (for SPICE Composition Mapping and Dynamics), combined with disk-centre.
Triggers: only IS triggers enabled
|normal + scheduled/triggered burst|
|RPW||normal + scheduled/triggered burst|
|SWA||normal + scheduled/triggered burst|
SPICE Dynamics (on 1 day), 4–6 rasters, depending on structure. (Modelling as 6 rasters = 1 hour )
Full north-south raster only needed for extended coronal holes. Otherwise point at part of boundary modelled to be be connection point.
Raster area should be optimized to make sure open-closed field boundary is captured:
Lines for SPICE Composition Mapping:
– 15 lines (2 profiles+ 13 intensities)
Lines for SPICE Dynamics:
– 4 profiles + 6 (2?) intensities:
Estimate for daily mosaic with 4 pointing positions of full rasters (6" slit, 10s exptime, few strong lines, 30mins duration): 10 x 4 x 9.84Mb = 0.4Gbits (18% of orbital vol)
FSI Synoptic mode (S) (FSI174)
Cadence of a few hours around s/c magnetic connection point
|Synoptic observations with FSI174 (perhaps partial frame)|
Regularly spaced FDT images for I_cont, B_LOS, gamma and phi.
Cadence of 6 hours
PHI_synoptic_FDT_4 (with 6hrs cadence)
Global maps of v_outflow in corona
Global n_e maps
Brightness fluctuation spectra
|SoloHI||Measure solar wind speed above potential source region in co-ordination with Metis|
(e.g., orbital requirements, solar cycle phase, quadrature ...)
|184.108.40.206 Does slow wind originate from the over-expanded edges of coronal holes?||Coronal hole(s), Coronal hole boundary.|
few hours per day
|SPICE mosaic for mapping.|
Best if s/c is on same streamline as SPP, but not required
|220.127.116.11 Does slow and intermediate solar wind originate from coronal loops outside of coronal holes?|
|18.104.22.168 Abundance of minor ions as a function of height in the corona as indicator of slow or fast wind|
(this objective should be expanded, including also the abundance of minor