Od: "Solar Influences Data analysis Center" Komu: RegisteredUsers@sidc.be Předmět: SIDC Ursigram Datum: 12.3.2009 - 12:57:59 :Issued: 2009 Mar 12 1157 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 90312 SIDC SOLAR BULLETIN 12 Mar 2009, 1153UT SIDC FORECAST (valid from 1230UT, 12 Mar 2009 until 14 Mar 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 12 Mar 2009 10CM FLUX: 069 / AP: 009 PREDICTIONS FOR 13 Mar 2009 10CM FLUX: 069 / AP: 024 PREDICTIONS FOR 14 Mar 2009 10CM FLUX: 069 / AP: 004 COMMENT: High solar wind speed is expected from a recurrent coronal hole tomorrow March 13. The first signs (sector crossing) are already observable in ACE data. In the previous solar rotation, this coronal hole disturbed the geomagnetic activity for just over 24 hours with peaks up till Kp ~ 4. TODAY'S ESTIMATED ISN : 000, BASED ON 06 STATIONS. SOLAR INDICES FOR 11 Mar 2009 WOLF NUMBER CATANIA : 000 10CM SOLAR FLUX : 069 AK CHAMBON LA FORET : /// AK WINGST : 007 ESTIMATED AP : 004 ESTIMATED ISN : 000, BASED ON 23 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 # #--------------------------------------------------------------------#