:Product: 20050219SGAS.txt :Issued: 2005 Feb 19 0250 UT # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment Center and the U.S. Air Force. # Joint USAF/NOAA Solar and Geophysical Activity Summary SGAS Number 050 Issued at 0245Z on 19 Feb 2005 This report is compiled from data received at SWO on 18 Feb A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1054 1054 1054 230 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field was at quiet to minor storm levels. Activity was due to the effects of a high speed stream from a geoeffective coronal hole. Solar wind speed at ACE showed an increase to approximately 600 km/s by 18/1600Z and then decreased slightly to 550 km/s by the end of the period. D. Stratwarm: Not Available E. Daily Indices: (real-time preliminary/estimated values) 10 cm 104 SSN 046 Afr/Ap 017/025 X-ray Background B2.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.4e+06 GT 10 MeV 1.4e+04 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W109 degrees) Daily Electron Fluence GT 2 MeV 4.70e+06 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W76 degrees) 3 Hour K-indices: Boulder 5 3 4 3 4 4 2 3 Planetary 5 4 4 3 4 4 3 2 F. Comments: None