Viewing archive of Monday, 12 February 2001
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 2001 Feb 12 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 043 Issued at 0245Z on 12 Feb 2001 This report is compiled from data received at SWO on 11 FebA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0057 0123 0146 9346 N24W57 C6.5 1f II
B. Proton Events
An enhancement in the greater than 10 MeV proton
flux at geosynchronous orbit began about 0600 UTC, following the C6
event at 0123 UTC. The particle increase reached the 1 pfu level,
most recently at 1025 UTC, before the slow decay now occurring,
commenced.
C. Geomagnetic Activity Summary
The geomagnetic field was
predominantly quiet to unsettled. However, brief active conditions
occurred from 0600-0900 UTC at Boulder from a short-lived substorm.
D. Stratwarm
Stratwarm Alert Exists Stratwarm Sunday
Major warming continues. Temperature gradient between 60N
and the pole reversed at the 100 to 10 HPA levels. Wind reversal
at 60N/10HPA expected within the next day.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 151 SSN 169 Afr/Ap 005/007 X-ray Background B5.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.2e+05 GT 10 MeV 2.9e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 3.70e+05 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 2 4 3 2 3 1 1 Planetary 2 2 3 3 2 2 1 1
F. Comments
AUTODIN transmission of the following bulletins will cease on 15 Feb 01: FXXX01 KBOU, AXXX01 KBOU, AXXX02 KBOU, and AXXX03 KBOU. The bulletins will still be available via the Internet at www.afwin.afwa.af.mil for military users and www.sec.noaa.gov for non-military users. If web access is not acceptable or you have any questions, please contact Mr. Jerry Sanders at DSN 271-1399 (COMM 402-294-1399), e-mail [email protected].
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