Description of the objective:



  • We need MAG measurements for the magnetic field polarity and strength, over a wide range of distances and latitudes, combined with signatures of connectivity such as suprathermal electrons (SWA/EAS) to determine the amount of open magnetic flux in the heliosphere from solar minimum to maximum. 
  • METIS can provide electron density and outflow velocity maps with a 20-30 min cadence.
  • EUI can support with FSI for complementing observations in the lower lying corona, at low cadence as METIS.
  • PHI can provide low-resolution synoptic context.
  • As for all goals of the category 1.1.3 Source regions of the heliospheric magnetic field, far side observations will be most innovative, as well as high-latitude. EMC Quiet periods are required for the MAG measurements.

Part of this objective can be addressed with the I_DEFAULT SOOP as well as during the connectivity operating plans for the fast and slow winds, e.g. L_SMALL_HRES_HCAD_Fast_WindL_SMALL_HRES_HCAD_SlowWindConnectionL_SMALL_MRES_MCAD_Connection_Mosaic.

However up to now, we have only included it in R_SMALL_MRES_MCAD_AR-Long-Term, but this would only partially address it.






Other constraints: