• Main study: SPICE Composition

• map (3 - 8 hours: total duration depending on the exposure time, the available FOV according to the orbit conditions and the S/C constraints).
• Supporting study: Spectral Atlas

Slit:  4’’ slit

Exposure time:

60 s, 90 s or 120 s according to the S/C constraints for the main study; 60 s for Spectral Atlas

FOV: 20.2'×30' - 29'×30' depending on S/C constraints for the main study.

Number of repetitions of the study:

usually one at each

pointing, but also depends on S/C constraints.

Observation time:

Mosaic of 6 positions would take bit more than 3 hours

Lines for SPICE Composition Mapping (from 1.1.2.2 Does slow and intermediate solar wind originate from coronal loops outside of coronal holes?) :

– 15 lines (2 profiles+ 13 intensities)

• Ne VIII 770 Å,

• Ne VIII 780 Å,

• Mg IX 706 Å,

• O II 718 Å,

• O IV 787 Å,

• O V 760 Å,

• O V 761 Å,

• O VI 1032 Å,

• Ne VI 999 Å,

• Ne VI 1010 Å,

• Mg VIII 772 Å,

• Mg VIII 782 Å,

• C III 977 Å,

• Fe III 1017 Å

• Si II 992 Å

N.B. This line list for SPICE Composition Mapping is similar to that of L_BOTH_HRES_LCAD_CH-Boundary-Expansion, except for O VI 1037 (removed) and Si II 992 (added).

PHI

50 hours (minimum 48 hours) to reduce the constraints due to S/C.

Main spectral line list (profiles):

• O III 70.3 nm multiplet
• Mg IX 70.6 nm
• S IV 74.8 nm (if exp.time=90 s or 120 s)
• Mg IX 74.9 nm (if exp.time=90 s or 120 s)
• S IV 75.0 nm
• N IV 76.5 nm
• Ne VIII 77.0 nm
• Mg VIII 77.2 nm
• S V 78.6 nm
• O IV 78.7 nm
• N III 99.1 nm (if exp.time=90 s or 120 s)
• C III 97.7 nm
• O VI 103.2 nm.

For the Spectral Atlas the full spectrum is available, but the FOV is much smaller than the main Composition map study.

EUV & LYA Coronal hole modes (C) with HRI, 10-15 mins cadence

FSI Synoptic mode (S) with FSI

PHI

SoloHI Synoptic program

modelled as HI_SYN_NEAR

Preferred quadrature with Earth

.

SoloHI images Earth-directed blobs, Earth images blobs that will hit Solar Orbiter

SWA/HIS is needed.

WOLs and PASS

Pre-window observations with EUI and Metis desired for coronal context.

radial Radial or quadrature alignment with SPP is a plus.

AR boundaries/AR/ CH boundaries,

Near perihelion for resolution & better linkage conditions.

Different phases of solar cycle

.

SWA/HIS is needed.

Useful to run close to the L_SMALL_HRES_HCAD_Slow-Wind-Connection to have a longer tracking of the connection source plus context.

WOLs and PASS.

Modelling to find best candidate source regions

. 

Mosaic to map larger region for maximise the linkage with the source on the Sun.

 AR boundaries/AR/ CH boundaries/ connection point

Any RS windows, but preferred either near perihelion for resolution or quadrature to allow Earth-based instruments support.

SWA/HIS is needed.