:Issued: 2010 Oct 06 1252 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 01006 SIDC SOLAR BULLETIN 06 Oct 2010, 1236UT SIDC FORECAST (valid from 1230UT, 06 Oct 2010 until 08 Oct 2010) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 06 Oct 2010 10CM FLUX: 075 / AP: 005 PREDICTIONS FOR 07 Oct 2010 10CM FLUX: 075 / AP: 002 PREDICTIONS FOR 08 Oct 2010 10CM FLUX: 075 / AP: 005 COMMENT: A filament eruption occurred this morning around 2h08 UT. It was clearly observed in SDO/AIA 304 and 193 images. Linked to this event, there was a long duration B-flare measured by GOES. STEREO-A/COR2 chronograph images show an associated CME around 6h54 UT. Also SOHO/LASCO observed this CME around 7h34 UT. While STEREO images indicate this CME is headed towards earth, LASCO shows that it is more north-east directed. We thus expect that it will mostly miss Earth when it will arrive at the Earth's orbit (in ~3 days). Geomagnetic conditions are currently quiet, but might increase up to unsettled levels when a coronal hole wind stream will arrive late on october 8. TODAY'S ESTIMATED ISN : 000, BASED ON 07 STATIONS. SOLAR INDICES FOR 5 Oct 2010 WOLF NUMBER CATANIA : /// 10CM SOLAR FLUX : 075 AK CHAMBON LA FORET : 009 AK WINGST : 005 ESTIMATED AP : 005 ESTIMATED ISN : 006, BASED ON 19 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 # #--------------------------------------------------------------------#