:Issued: 2007 Nov 26 0940 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 71125 SIDC SOLAR BULLETIN 25 Nov 2007, 1209UT SIDC FORECAST (valid from 1230UT, 25 Nov 2007 until 27 Nov 2007) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 25 Nov 2007 10CM FLUX: 071 / AP: 017 PREDICTIONS FOR 26 Nov 2007 10CM FLUX: 070 / AP: 012 PREDICTIONS FOR 27 Nov 2007 10CM FLUX: 070 / AP: 007 COMMENT: Solar activity is expected to be very low for the next 48 hours. The active region mentioned in the previous bulletin was numbered AR 0975 by NOAA. No significant flaring activity is expected from it. Geomagnetic activity is expected to be mostly quiet during the next 48 hours, with a slight risk of isolated unsettled conditions, due to the extent of a coronal hole. Current readings of the solar wind speed measured by the ACE spacecraft are about 600-650 km/s. Quiet conditions are expected by late Nov. 26th. TODAY'S ESTIMATED ISN : 008, BASED ON 06 STATIONS. SOLAR INDICES FOR 24 Nov 2007 WOLF NUMBER CATANIA : 021 10CM SOLAR FLUX : 071 AK CHAMBON LA FORET : /// AK WINGST : 020 ESTIMATED AP : 017 ESTIMATED ISN : 009, BASED ON 12 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 # #--------------------------------------------------------------------#