Start Max End Rgn Loc Xray Op 245MHz 10cm Sweep
0211 0214 0216              C2.2     1800   570
0217 0000 0000                                     II

Ingen

The geomagnetic field has been quiet to minor storm, with severe storm conditions at high latitudes. An interplanetary shock passed the ACE spacecraft at 18/0005 UTC; subsequently the Boulder magnetometer registered a 50 nT sudden impulse at 18/0048 UTC. This shock was likely associated with the X14/2B on 15 April. Greater than 10 MeV and greater than 100 MeV proton events began at 18/0315 UTC and 18/0255 UTC respectively, most likely associated with the activity from old Region 9415 behind the west limb. The greater than 10 MeV protons reached a peak of 321 pfu at 18/1045 UTC, while the greater than 100 MeV reached 12 pfu at 18/0600 UTC. The Thule neutron monitor measured a ground level event between 18/0242 UTC and 18/0914 UTC; polar cap absorption (PCA) event began at 18/0425 UTC and remains in progress. Values for the greater than 2 MeV electrons at geosynchronous orbit were not reported due to sensor contamination by the proton event.

Ingen

10 cm 132  SSN 063  Afr/Ap 026/050   X-ray Background B5.7
Daglig protonflux (fluxakkumulering over 24 timer)
GT 1 MeV 5.0e+07   GT 10 MeV 1.2e+07 p/(cm2-ster-day)
(GOES-8 satellit synkron kredsløb W75 grader)
Daglig elektronflux
GT 2 MeV 2.20e+06 e/(cm2-ster-day)
(GOES-8 satellit synkron kredsløb W75 grader)
3 timers K-indeks
Boulder 5 5 5 3 3 3 3 2 Planetary 5 7 7 4 3 4 1 2

  Ingen