Proposed SOOP Coordinators
S. Krucker, D. Berghmans, L. Harra, J. Hirzberger, N. Vilmer, D. Hassler, S. Parenti, R. Wimmer-Schweingruber, A. De Groof, D. Long, S. Matthews
This SOOP is aimed at understanding SEP properties and dynamics in relation to Flare events. EUI and STIX are leading this SOOP, while IS payload provides continuous observations. Synoptic support from other full disk RS instruments. Disk centre pointing preferred.
For most of the science objectives SPICE is good to have, but as the SEP events are rather rare, it is not feasible to go hunting for these events and to point SPICE to any particular region. However, since all other instruments are involved, SPICE will probably be observing anyway (SPICE best mode TBC).
Default SOOP duration: 1 day
Pointing requirements: disk centre preferred
Triggers: IS + metis trigger active
EUV & LYA Active Region modes (A) (triggered) with 1min cadence (default = 1or2s)
Most of the objectives in this SOOP are too exceptional to be hunted for with high-res high-cadence observations, except when they can be triggered by a STIX flag whenever the flare is in the HRI FOV.
Trigger needed: EUI to download only 1 event in HRI AR mode (~120kbits/s for 1 hour)
|CMEOBS starts after CME flag rise, min.obs time 1 hr (high cadence, 1 min), data volume~ 2.137 Gb|
SoloHI Shock and Synoptic modes
|PHI_magnetograph_FDT_2 (FDT)||FDT in general|
|SPICE||SPICE Waves mode (is sit-and-stare)|
SPICE is good to have, but no target hunting will be performed in this SOOP, so SPICE will be disk centre pointed
(e.g., orbital requirements, solar cycle phase, quadrature ...)
|126.96.36.199 What causes SEPs' spectral breaks?||Corona + Heliosphere|
PHI, STIX and FSI seem to be the most valuable RS instruments to address this goal.
SoloHI + SPP would be interesting combination as well.
EUI/FSI 174, 304, 5 min cadence (FSI default cadence is 10 minutes)
EUI/HRI 174 & Ly-alpha if source is connected to SolO
SPICE would be helpful if by chance the SEP source region is in the HRI FOV AND EUI/HRI (Lya alpha) observed it -> not feasible to go hunting for these events (TBC by SWT)
|188.8.131.52 Explore the fact that only some of the hard X-ray peaks are related to escaping electrons, while others are not||Corona & Heliosphere|
EUI/HRI 1 min cadence for 30 min before and during X-ray peak (EUI AR mode triggered based on STIX flare)
EUI/FSI 10 min cadence
SoloHI & Metis connectivity with Probe.
|184.108.40.206 X-ray prompt events|
Corona & Heliosphere
In-situ observed electron spectrum and hard X-ray photon spectrum correlation
TBC: EUI/FDT 10 min cadence, EUI/HRI 1 min cadence for 30 min before and during X-ray peak
EUI is required to see details of the flare region in order to decide if electrons and ions are accelerated by different processes at different times (but not sure how this is done in practice, we should discuss what EUI mode is needed, synoptic as described in the objective page does not seem adequate).
This question should be asked to Sam Krucker.
|220.127.116.11 Delayed events (between X-ray peak and electron release time)|
Corona & Heliosphere
Explore the origin of the delay
It is about a secondary faint emission after the main X-ray burst that could be possibly detected for the first time.
Best when the solar limb from SolO is connected to Earth, or other s/c.
TBC: EUI/FDT 2 min cadence, EUI/HRT 1 min cadence for 30 min before and during X-ray peak
EUI could be needed for studying the flare region. If there is a CME shock (2nd case)
SoloHI & METIS could be interesting.
Corona & Heliosphere
1)Propagation effects in the interplanetary medium.
2)Coronal magnetic restructuring in the aftermath of CMEs (PHI needed)
Perihelion for Propagation effects in the interplanetary medium
Track connected region for many days at different distances from Sun does not seem to be needed, even the value of high-res data for this objective seems doubtful (or too ambitious to plan for). If it would drive the SOOP, this would mean tracking connected region for many orbits, to enhance the chance of catching a type III radio burst.
EUI/FDT 174, 304 5 min cadence (EUI default cadence is 10 minutes)
EUI/HRI 174 & Ly-alpha 2 min cadence
SPICE again, not to be hunted for. If SPICE sees it, that is better but not driver for the SOOP.
Corona + Heliosphere
Metis & SoloHI for the shock observations and EUI/FSI+STIX for the flare ones
PHI not needed.
|3.2.2 Latitudinal and longitudinal transport of SEPs||Corona + Heliosphere||Statistics||Needs range of latitudes but indeed this SOOP needs to be scheduled at some high-lat windows as well||Metis compatible|
Best addressed by multi-viewpoint statistical dataset, e.g. SPP (really close to the sun) + SolO + earth-based RS data. -> need many events, viewed from different viewpoints and different distances
Multi-viewpoint (stereo), thus multiple SC or Earth assets
SolO: full disk imagery + Metis