:Issued: 2008 Oct 25 1321 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 81025 SIDC SOLAR BULLETIN 25 Oct 2008, 1317UT SIDC FORECAST (valid from 1230UT, 25 Oct 2008 until 27 Oct 2008) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 25 Oct 2008 10CM FLUX: 067 / AP: 004 PREDICTIONS FOR 26 Oct 2008 10CM FLUX: 067 / AP: 006 PREDICTIONS FOR 27 Oct 2008 10CM FLUX: 066 / AP: 010 COMMENT: A low-latitude coronal hole in the southern hemisphere reached the solar central meridian. The corresponding fast solar wind stream is not expected to arrive to the Earth before October 27. Currently the Earth is inside the slow solar wind with weak interplanetary magnetic field. We thus expect quiet geomagnetic conditions in the next 24 hours. TODAY'S ESTIMATED ISN : 000, BASED ON 08 STATIONS. SOLAR INDICES FOR 24 Oct 2008 WOLF NUMBER CATANIA : 000 10CM SOLAR FLUX : 068 AK CHAMBON LA FORET : /// AK WINGST : 001 ESTIMATED AP : 001 ESTIMATED ISN : 000, 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 # # 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 # #--------------------------------------------------------------------#