:Issued: 2010 Jul 28 1226 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 00728 SIDC SOLAR BULLETIN 28 Jul 2010, 1221UT SIDC FORECAST (valid from 1230UT, 28 Jul 2010 until 30 Jul 2010) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Active conditions expected (A>=20 or K=4) SOLAR PROTONS : Quiet PREDICTIONS FOR 28 Jul 2010 10CM FLUX: 083 / AP: 021 PREDICTIONS FOR 29 Jul 2010 10CM FLUX: 084 / AP: 015 PREDICTIONS FOR 30 Jul 2010 10CM FLUX: 084 / AP: 008 COMMENT: Solar activity is low, NOAA AR 11089 has reduced chances of producing strong flares. Geomagnetic activity has varied between unsettled to active levels in the last 24 hours, the solar wind speed is almost 700 km/s with magnetic fields close to 5 nT. Unsettled to active conditions, with possible isolated storm periods, are expected during the next 48 hours. TODAY'S ESTIMATED ISN : 022, BASED ON 14 STATIONS. SOLAR INDICES FOR 27 Jul 2010 WOLF NUMBER CATANIA : 027 10CM SOLAR FLUX : 083 AK CHAMBON LA FORET : 031 AK WINGST : 022 ESTIMATED AP : 023 ESTIMATED ISN : 010, BASED ON 18 STATIONS. NOTICEABLE EVENTS SUMMARY DAY BEGIN MAX END LOC XRAY OP 10CM RADIO BURST TYPES Catania NOAA NOTE NONE END BT #--------------------------------------------------------------------# # Solar Influences Data analysis Center - RWC Belgium # # Royal Observatory of Belgium # # Fax : 32 (0) 2 373 0 224 # # Tel.: 32 (0) 2 373 0 491 # # # # For more information, see http://sidc.be/products/meu # # Please do not reply directly to this message, but send comments # # and suggestions to 'sidctech@oma.be'. If you are unable to use # # that address, use 'rvdlinden@spd.aas.org' instead. # # To unsubscribe, visit http://sidc.be/registration/unsub.php # #--------------------------------------------------------------------#