Viewing archive of Tuesday, 17 June 2003
Geophysical report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Solar and Geophysical Activity Summary 2003 Jun 17 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 168 Issued at 0245Z on 17 Jun 2003 This report is compiled from data received at SWO on 16 JunA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1152 1200 1204 0386 S12E83 M1.7 Sf
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was at
unsettled to minor storm levels. The source of the minor storm
conditions may be associated with the Boulder magnetometer scaling
problem (see comment in VII). Solar wind speed was in gradual decay
from a peak near 600 km/s early in the day to a minimum of 450 km/s
by 1600UTC. Wind speed then increased to 550 km/s by the end of the
day.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 123 SSN 091 Afr/Ap 038/032 X-ray Background B3.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.8e+06 GT 10 MeV 1.7e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W126 degrees) Daily Electron Fluence GT 2 MeV 6.90e+06 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W76 degrees) 3 Hour K-indices Boulder 5 5 3 5 4 4 3 6 Planetary 4 5 2 5 4 3 5 6
F. Comments
On 16 June, it was determined that a scaling problem exists with the H-trace on the Boulder magnetometer instrument. While this problem, and its fix are being investigated the primary instrument for Boulder K-indices has been switched to the Boulder USGS (via Domsat) magnetometer, effective 1500 UTC on 16 June.
All times in UTC
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