PHI_HRT_NOM_0: HRT nominal mode at 1-min cadence

Flush 1-2 hr period (725MB per hour), coordinated with EUI.

Note that FDT, highest spatial resolution (2Kx2K), cadence 6 hours preferred, but certainly ≥ 1 per day may be useful for context beforehand (Earth source as well?).

Model PHI flush with 1550MB after SOOP has completed.

EUI

HRI: 1 – 2 hours, at 1-min cadence, e.g. EUV & LYA Coronal hole modes (C) (reduced cadence)

FSI: FSI Synoptic mode (S) (chosen for model) or FSI Reference Synoptic mode (R), at several-hour cadence, both 174 and 304.

≥ 12 hours of much lower-cadence HRI data for context

We downlink 1-2 hours long period at 1min cadence (220MB per hour) based on modelling & LL data from EUI. Coordinated with PHI.

Model EUI flush with 440MB for HRI.  FSI volume based on 2.04kbits/s during whole SOOP, 3 days =>66Mbytes.

If polar CH is target, modes are (see METIS standard modes):
WIND: ≥ 2 hours
MAGTOP: ≥ min. 2 hours; repeated each day in available observing windows
FLUCTS: ≥ 1 hour; at perihelion (see METIS special modes)

Rest of the time Metis will need to switch off for off-pointing (TBC)

For SAP v0, we can model the Metis contribution in this SOOP as:

• 2 hours WIND per day
• 2 hours MAGTOP per day
• 1 hour FLUCTS, once in the SOOP (will be scheduled at closest point)
• Rest of the time Metis off

STIX

SPICE Composition Mapping: 1 repeat (3.2 hours) (low-latitude CH only);

SPICE Dynamics: 14 x 4" slit + 8 x 2" slit = 3.72 hours per day throughout RSW; FOV 8' x 11' (maybe 4' x 11' at poles)

Possible 4-pixel binning in Y

Default FOV in X for both studies is 4'. Will assume that these are just placed side-by-side but with half the time on each position if the CH is large enough to warrant this. Duration is therefore unaffected.

Use observation called SPICE_FAST_WIND in modelling.

Triggers on

• EMC quiet for in situ observations 12 hours after the RS observations of the source region
  • can be EMC-noisy during RS observations

Likely to involve pointing away from disc centre ("DC"): difficult to see how Metis can participate at those times.

However, could involve DC pointing, especially between observations of the polar CHs, to look at propagating fluctuations in/near plane of sky (but not connected to s/c) at 1.5–2.9º from DC.

Doppler dimming measurements will not be so useful in these cases, since the fast wind will not have made it out into the Metis FOV (need to check exact distances) from the observed "source region".

• High-latitude perihelion (preferred, for fastest solar wind)
• solar minimum or declining phase