:Issued: 2007 Apr 02 1224 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 70402 SIDC SOLAR BULLETIN 02 Apr 2007, 1212UT SIDC FORECAST (valid from 1230UT, 02 Apr 2007 until 04 Apr 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 02 Apr 2007 10CM FLUX: 072 / AP: 021 PREDICTIONS FOR 03 Apr 2007 10CM FLUX: 071 / AP: 011 PREDICTIONS FOR 04 Apr 2007 10CM FLUX: 072 / AP: 005 COMMENT: The solar activity is quiet and is expected to remain so. No sunspot groups are visible on the solar disc. The Earth is currently inside the fast solar wind flow from a low-latitude coronal hole (now visible in the western hemisphere). We expect active geomagnetic conditions. TODAY'S ESTIMATED ISN : 000, BASED ON 05 STATIONS. SOLAR INDICES FOR 1 Apr 2007 WOLF NUMBER CATANIA : /// 10CM SOLAR FLUX : /// AK CHAMBON LA FORET : 044 AK WINGST : 028 ESTIMATED AP : 028 ESTIMATED ISN : 009, BASED ON 09 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. # # #--------------------------------------------------------------------#