:Issued: 2009 Aug 27 1230 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 90827 SIDC SOLAR BULLETIN 27 Aug 2009, 1219UT SIDC FORECAST (valid from 1230UT, 27 Aug 2009 until 29 Aug 2009) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 27 Aug 2009 10CM FLUX: 068 / AP: 003 PREDICTIONS FOR 28 Aug 2009 10CM FLUX: 067 / AP: 004 PREDICTIONS FOR 29 Aug 2009 10CM FLUX: 068 / AP: 003 COMMENT: The sunspot number remains 0. A few small holes are visible in the suns corona. Currently, the solar wind speed is 360 km/s and the interplanetary magnetic field reached a value of 6 nT. With also Kp=1, quiet solar and geomagnetic conditions are expected. TODAY'S ESTIMATED ISN : 000, BASED ON 13 STATIONS. SOLAR INDICES FOR 26 Aug 2009 WOLF NUMBER CATANIA : 000 10CM SOLAR FLUX : /// AK CHAMBON LA FORET : /// AK WINGST : 004 ESTIMATED AP : 003 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 # #--------------------------------------------------------------------#