:Issued: 2007 Aug 17 1244 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 70817 SIDC SOLAR BULLETIN 17 Aug 2007, 1232UT SIDC FORECAST (valid from 1230UT, 17 Aug 2007 until 19 Aug 2007) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Active conditions expected (A>=20 or K=4) SOLAR PROTONS : Quiet PREDICTIONS FOR 17 Aug 2007 10CM FLUX: 067 / AP: 014 PREDICTIONS FOR 18 Aug 2007 10CM FLUX: 067 / AP: 012 PREDICTIONS FOR 19 Aug 2007 10CM FLUX: 067 / AP: 006 COMMENT: The spotless Sun remains at its lowest activity level. The geomagnetic conditions remained mostly quiet to unsettled as the weak coronal hole influence declines. Still, we keep a warning for a new fast solar wind stream that may cause a geomagnetic disturbance later today Aug. 17 or tomorrow, causing unsettled to active conditions. TODAY'S ESTIMATED ISN : 000, BASED ON 12 STATIONS. SOLAR INDICES FOR 16 Aug 2007 WOLF NUMBER CATANIA : 000 10CM SOLAR FLUX : 067 AK CHAMBON LA FORET : /// AK WINGST : 006 ESTIMATED AP : 007 ESTIMATED ISN : 000, BASED ON 17 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 # #--------------------------------------------------------------------#