:Issued: 2008 Jan 18 1256 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 80118 SIDC SOLAR BULLETIN 18 Jan 2008, 1250UT SIDC FORECAST (valid from 1230UT, 18 Jan 2008 until 20 Jan 2008) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 18 Jan 2008 10CM FLUX: 073 / AP: 011 PREDICTIONS FOR 19 Jan 2008 10CM FLUX: 073 / AP: 007 PREDICTIONS FOR 20 Jan 2008 10CM FLUX: 073 / AP: 004 COMMENT: The all-quiet alert is still valid. We have a quiet sun with no active regions or sunspots. A coronal hole is visible, the presence is noticed by the spacecraft ACE measuring an elevated solar wind speed. The interplanetary magnetic field is such that no geomagnetic disturbances are expected. TODAY'S ESTIMATED ISN : 000, BASED ON 03 STATIONS. SOLAR INDICES FOR 17 Jan 2008 WOLF NUMBER CATANIA : /// 10CM SOLAR FLUX : 074 AK CHAMBON LA FORET : /// AK WINGST : 015 ESTIMATED AP : 013 ESTIMATED ISN : 000, BASED ON 11 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 # #--------------------------------------------------------------------#