:Issued: 2009 Jan 29 1301 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 90129 SIDC SOLAR BULLETIN 29 Jan 2009, 1249UT SIDC FORECAST (valid from 1230UT, 29 Jan 2009 until 31 Jan 2009) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 29 Jan 2009 10CM FLUX: 070 / AP: 004 PREDICTIONS FOR 30 Jan 2009 10CM FLUX: 070 / AP: 004 PREDICTIONS FOR 31 Jan 2009 10CM FLUX: 070 / AP: 004 COMMENT: The Sun remains spotless and will thus stay at very low activity levels. The recurrent fast solar wind stream hardly deserves that name. Compared to previous solar rotations, it has become much weaker with a speed fluctuating now around 400 km/s. This not enough to excite the Earth magnetosphere beyond the current quiet to unsettled levels, which will extend at least over the next 2 days in the forecast period. TODAY'S ESTIMATED ISN : 000, BASED ON 06 STATIONS. SOLAR INDICES FOR 28 Jan 2009 WOLF NUMBER CATANIA : 000 10CM SOLAR FLUX : 070 AK CHAMBON LA FORET : /// AK WINGST : 002 ESTIMATED AP : 003 ESTIMATED ISN : 000, BASED ON 17 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 # #--------------------------------------------------------------------#