:Issued: 2006 Jul 18 1322 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 60718 SIDC SOLAR BULLETIN 18 Jul 2006, 1311UT SIDC FORECAST (valid from 1230UT, 18 Jul 2006 until 20 Jul 2006) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Active conditions expected (A>=20 or K=4) SOLAR PROTONS : Quiet PREDICTIONS FOR 18 Jul 2006 10CM FLUX: 071 / AP: 003 PREDICTIONS FOR 19 Jul 2006 10CM FLUX: 072 / AP: 005 PREDICTIONS FOR 20 Jul 2006 10CM FLUX: 072 / AP: 004 COMMENT: Geomagnetic conditions are expected to remain quiet to very quiet. A wide CME observed in the S hemisphere yesterday was backsided, and no other potentially geoeffective features are presently visible. Solar activity has increased a little from yesterday with several A-class and 2 B-class events from NOAA AR 0900 (Catania 64), although the region itself has not grown and is only marginally more complex. Isolated C-class events are possible but the All-Quiet Alert remains in place. TODAY'S ESTIMATED ISN : 016, BASED ON 07 STATIONS. SOLAR INDICES FOR 17 Jul 2006 WOLF NUMBER CATANIA : 023 10CM SOLAR FLUX : 071 AK CHAMBON LA FORET : 008 AK WINGST : /// ESTIMATED AP : 004 ESTIMATED ISN : 015, BASED ON 13 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 # # 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. # #--------------------------------------------------------------------#