:Issued: 2008 Jan 04 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 80104 SIDC SOLAR BULLETIN 04 Jan 2008, 1253UT SIDC FORECAST (valid from 1230UT, 04 Jan 2008 until 06 Jan 2008) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Active conditions expected (A>=20 or K=4) SOLAR PROTONS : Quiet PREDICTIONS FOR 04 Jan 2008 10CM FLUX: 081 / AP: 003 PREDICTIONS FOR 05 Jan 2008 10CM FLUX: 082 / AP: 021 PREDICTIONS FOR 06 Jan 2008 10CM FLUX: 083 / AP: 013 COMMENT: No flaring activity is expected in the coming days. Active geomagnetic conditions (up to K=4) are expected over the weekend due to the influence of a recurrent coronal hole. Catania solar observatory reports the presence of a high latitude sunspot group. MDI images show a bipolar structure. This bipole is however the first of the new solar cycle which actually develops into a visible sunspot group. Solar cycle 24 has arrived! TODAY'S ESTIMATED ISN : 006, BASED ON 05 STATIONS. SOLAR INDICES FOR 3 Jan 2008 WOLF NUMBER CATANIA : /// 10CM SOLAR FLUX : 079 AK CHAMBON LA FORET : /// AK WINGST : 020 ESTIMATED AP : 009 ESTIMATED ISN : 009, BASED ON 06 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 # #--------------------------------------------------------------------#