:Issued: 2010 Sep 07 1339 UTC :Product: documentation at http://www.sidc.be/products/bul #--------------------------------------------------------------------# # SIDC Weekly bulletin on Solar and Geomagnetic activity # #--------------------------------------------------------------------# WEEK 505 from 2010 Aug 30 SOLAR ACTIVITY ------------- There was no activity worth mentioning. GEOMAGNETIC ACTIVITY ------------------- The geomagnetic activity was very low this week. There was a southern coronal hole at the central meridian on Sep 01. The co-rotating interaction region arrived on Sep 05. The geomagnetic response was limited: Kp became 3 at most. --------------------------------------------------------------------------- DAILY INDICES DATE RC EISN 10CM Ak BKG M X 2010 Aug 30 036 019 75 001 A6.7 0 0 2010 Aug 31 039 020 75 004 A6.7 0 0 2010 Sep 01 026 019 76 006 A6.4 0 0 2010 Sep 02 065 036 77 007 A5.9 0 0 2010 Sep 03 /// 032 77 002 A7.2 0 0 2010 Sep 04 061 036 82 002 B1.0 0 0 2010 Sep 05 /// 027 82 006 B1.1 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 # #--------------------------------------------------------------------#