:Issued: 2009 Apr 06 1132 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 90406 SIDC SOLAR BULLETIN 06 Apr 2009, 1120UT SIDC FORECAST (valid from 1230UT, 06 Apr 2009 until 08 Apr 2009) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Active conditions expected (A>=20 or K=4) SOLAR PROTONS : Quiet PREDICTIONS FOR 06 Apr 2009 10CM FLUX: 070 / AP: 001 PREDICTIONS FOR 07 Apr 2009 10CM FLUX: 069 / AP: 003 PREDICTIONS FOR 08 Apr 2009 10CM FLUX: 069 / AP: 024 COMMENT: Solar activity is expected to be very low for the next 48 hours. Geomagnetic activity is expected to be quiet for the next 24 hours and then reach unsettled to active conditions by April 8th due to a coronal hole currently crossing the Sun's central meridian. TODAY'S ESTIMATED ISN : 000, BASED ON 13 STATIONS. SOLAR INDICES FOR 5 Apr 2009 WOLF NUMBER CATANIA : /// 10CM SOLAR FLUX : 070 AK CHAMBON LA FORET : /// AK WINGST : 005 ESTIMATED AP : 004 ESTIMATED ISN : 000, BASED ON 20 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 # #--------------------------------------------------------------------#