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Space Weather Message Code: ALTPC0
Serial Number: 35
Issue Time: 2012 Mar 07 0416 UTC
ALERT: Proton Event 100MeV Integral Flux exceeded 1pfu
Begin Time: 2012 Mar 07 0405 UTC
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/NOAAscalesPotential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.
Space Weather Message Code: ALTPX2
Serial Number: 49
Issue Time: 2012 Mar 07 1022 UTC
ALERT: Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2012 Mar 07 1015 UTC
NOAA Scale: S2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/NOAAscalesPotential Impacts: Radiation - Passengers and crew in high latitude, high altitude flights may experience small, increased radiation exposures.
Spacecraft - Infrequent single-event upsets to satellites are possible.
Radio - Small effects on polar HF (high frequency) propagation resulting in fades at lower frequencies.