:Product: 20030623SGAS.txt :Issued: 2003 Jun 23 0245 UTC # 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 174 Issued at 0245Z on 23 Jun 2003 This report is compiled from data received at SWO on 22 Jun A. Energetic Events Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0412 0412 0414 910 0536 0540 0544 B6.3 130 0945 0949 0951 0388 N04W28 C1.0 Sf 120 1003 1014 1024 B6.8 150 B. Proton Events: None C. Geomagnetic Activity Summary: The geomagnetic field was unsettled to active due to a high speed coronal hole stream. D. Stratwarm: None E. Daily Indices: (real-time preliminary/estimated values) 10 cm 110 SSN 094 Afr/Ap 015/016 X-ray Background Msg Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV Msg GT 10 MeV Msg p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W113 degrees) Daily Electron Fluence GT 2 MeV Msg e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W75 degrees) 3 Hour K-indices: Boulder 3 3 3 3 3 3 3 3 Planetary 3 3 4 3 3 3 3 3 F. Comments: On 16 June, it was determined that a scaling problem exists with 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. GOES Protons: To ensure continued operational monitoring of important energetic particle data, it is necessary to reassign primary/secondary designations for the GOES Space Environment Monitor (SEM) detectors. GOES 11 (113W) is now the primary satellite for protons. GOES 12 will continue as the primary satellite for magnetometer, X-ray, and electron measurements. GOES 10 (135W) will be the secondary satellite for all SEM sensors - magnetometer, X-ray, and energetic particles. Because of the degraded state of the proton data on GOES-10, its designation as the secondary source for proton data is a short-term solution. More permanent solutions have been identified and are being evaluated. Users will be notified when we define and schedule a permanent fix. The missing (Msg) daily fluence data and the X-ray background data will be corrected on 23 June. Further details can be found at http://www.sec.noaa.gov/GOES.html.