Space Weather Message Code: ALTEF3
Serial Number: 1429
Issue Time: 2008 Jan 06 1716 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2008 Jan 06 1710 UTC
Station: GOES12
Observed Yesterday: No
NOAA / Space Weather Prediction Center
On the “sudden impulse” what is the definition?