:Issued: 2010 Nov 23 1703 UTC :Product: documentation at http://www.sidc.be/products/bul #--------------------------------------------------------------------# # SIDC Weekly bulletin on Solar and Geomagnetic activity # #--------------------------------------------------------------------# WEEK 516 from 2010 Nov 15 SOLAR CONDITIONS --------------- Solar activity remained at low levels during the past week, despite several active regions present on the solar disk. The flaring activity was moderate, with only one flare above the C level on Monday Nov. 15th, a C2.3 flare, peaking at 07:49 UT. GEOMAGNETIC CONDITIONS ---------------------- Geomagnetic activity was extremely low during the whole week. --------------------------------------------------------------------------- DAILY INDICES DATE RC EISN 10CM Ak BKG M X 2010 Nov 15 071 038 91 010 B1.6 0 0 2010 Nov 16 081 039 92 008 B1.6 0 0 2010 Nov 17 059 034 91 005 B1.2 0 0 2010 Nov 18 /// 029 87 007 B1.2 0 0 2010 Nov 19 042 026 84 006 B1.1 0 0 2010 Nov 20 /// 019 80 002 B1.1 0 0 2010 Nov 21 /// 018 78 004 A7.1 0 0 # RC : Sunspot index (Wolf Number) from Catania Observatory (Italy) # EISN : Estimated International Sunspot Number # 10cm : 10.7 cm radioflux (DRAO, Canada) # Ak : Ak Index Wingst (Germany) # BKG : Background GOES X-ray level (NOAA, USA) # M,X : Number of X-ray flares in M and X class, see below (NOAA, USA) --------------------------------------------------------------------------- NOTICEABLE EVENTS DAY BEGIN MAX END LOC XRAY OP TENCM TYPE Cat NOAA NOTE #--------------------------------------------------------------------# # 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://www.sidc.be. 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 # #--------------------------------------------------------------------#