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  • Formatting was changed. Detect and characterise waves in closed and open structures (e.g. De Pontieu et al., 2007), looking for signatures of their dissipation in the transition region and low corona, with a corresponding evaluation of the energy released to heat the solar plasma.


Targets: AR (also closed loops in QS?), on-disk and also off-limb (for spicules).

Maybe divide this objective per target?


Operational requirements table: This table will be filled before the SAP meeting (16-17 November), please come back later!


YES / NO / Not required / MAYBE / GOOD TO HAVE / NUMBERS
Duration of the observations ? 
Perihelion Good to have 
RS window Yes 
High latitude Not required 
Solar cycle dependence Good to have 
Radial dependence No 
Linkage science No 
Multiple orbits Good to have 
Far side observations No 
Earth observations Good to have 
EMC Quiet No 
Instruments  EUI, PHI, METIS

RS only


  • EUIEUI Quiet Sun mode (Q)EUI Eruptive Event mode (E)EUI Discovery mode (D). Targets: AR (also closed loops in QS?), on-disk and also off-limb (for spicules). HRI Ly-alpha and 174. Min. observation time 1h. Other instruments: SPICE.
  • PHI

    HRT medium  resolution data


    FOV [pixels]

    1024 x 1024


    Ic, vLOS, B, γ, φ (interlaced with raw data)


    2 days


    1/(1 min)

    N orbits


    solar distance

    entire orbit

    PHI operating mode




      • Measurement of the solar wind outflow velocity gradient in the outer corona, to localise regions of energy deposition, via Doppler dimming of the HI Lyα intensity in the field of view 1.5-2.9 degrees. Measurement of the magnetic field topology through the global corona configuration. Measurements of the brightness fluctuation spectra.
      • Products:
        • Global maps of outflow velocity in corona.
        • Global maps of the electron density in corona/coronal configuration.
        • Brightness fluctuation spectra.
      • Modes:
        • WIND (min. obs time 2 hr, data volume ≤ 300 Mb)
        • MAGTOP (min. obs time 2 hr, data volume ≤ 480 Mb)
              Repeated each day in available observation windows.
        • FLUCTS (min. obs time 1 hr, data volume  ~ 2 Gb) at perihelion. 
      • Other instruments: PHI, EUI, SPICE, STIX.