:Issued: 2008 Mar 09 1304 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 80309 SIDC SOLAR BULLETIN 09 Mar 2008, 1255UT SIDC FORECAST (valid from 1230UT, 09 Mar 2008 until 11 Mar 2008) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Active conditions expected (A>=20 or K=4) SOLAR PROTONS : Quiet PREDICTIONS FOR 09 Mar 2008 10CM FLUX: 070 / AP: 023 PREDICTIONS FOR 10 Mar 2008 10CM FLUX: 070 / AP: 015 PREDICTIONS FOR 11 Mar 2008 10CM FLUX: 070 / AP: 011 COMMENT: The geomagnetic field is currently unsettled to active due to the onset of a high speed solar wind stream that caused a minor geomagnetic storm mostly between 2:00 and 4:00UT earlier today March 9. Now, the interplanetary magnetic field is loosing strength while the wind speed stabilizes near 550 km/s. Therefore, we forecast unsettled to active geomagnetic conditions for the next 24 to 48h, with a brief minor storm still possible over the next few hours. TODAY'S ESTIMATED ISN : 000, BASED ON 06 STATIONS. SOLAR INDICES FOR 8 Mar 2008 WOLF NUMBER CATANIA : 000 10CM SOLAR FLUX : 070 AK CHAMBON LA FORET : /// AK WINGST : 013 ESTIMATED AP : 012 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 # #--------------------------------------------------------------------#