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SIDC Weekly Bulletin

:Issued: 2012 Jan 03 1109 UTC:Product: documentation at http://www.sidc.be/products/bul#——————————————————————–## SIDC Weekly bulletin on Solar and Geomagnetic activity            ##——————————————————————–#WEEK 574 from 2011 Dec 26  SOLAR ACTIVITY————– The last week of the year started with flaring at M-level. An M1.5 flare was observed in NOAA AR 11387 (no Catania number), peaking at 02:27 UT on December 26th. This region also produced an …

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SIDC Weekly Bulletin

:Issued: 2011 Dec 19 1524 UTC:Product: documentation at http://www.sidc.be/products/bul#——————————————————————–## SIDC Weekly bulletin on Solar and Geomagnetic activity            ##——————————————————————–#WEEK 572 from 2011 Dec 12  SOLAR CONDITIONS—————–Solar conditions were fairly quiet during this week, with only simple (alpha, beta) active regions on the disk. At the beginning of the week (a returning) Active Region NOAA 11376 (Catania 80) rotated on the east …

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SIDC Weekly Bulletin

:Issued: 2011 Dec 13 0756 UTC:Product: documentation at http://www.sidc.be/products/bul#——————————————————————–## SIDC Weekly bulletin on Solar and Geomagnetic activity            ##——————————————————————–#WEEK 571 from 2011 Dec 05  SOLAR ACTIVITY————–Solar activity was low with only a few C flares (GOES X-ray background at B level). There were up to 10 active regions present on the solar disk early in the week. The main active region …

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SIDC Weekly Bulletin

:Issued: 2011 Nov 29 1413 UTC:Product: documentation at http://www.sidc.be/products/bul#——————————————————————–## SIDC Weekly bulletin on Solar and Geomagnetic activity            ##——————————————————————–#WEEK 569 from 2011 Nov 21  SOLAR ACTIVITY————– Thirteen sunspot groups were reported by Catania during the week (corresponding NOAA AR number is given in brackets): 46 (1346), 50 (1352), 51 (1354), 52 (1353), 53 (1355), 55 (1357), 57 (no NOAA number), 58 …

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SIDC Weekly Bulletin

:Issued: 2011 Nov 22 0935 UTC:Product: documentation at http://www.sidc.be/products/bul#——————————————————————–## SIDC Weekly bulletin on Solar and Geomagnetic activity            ##——————————————————————–#WEEK 568 from 2011 Nov 14  SOLAR ACTIVITY————- Flaring activity has been at eruptive levels throughout the week, with numerous C-flares occurring every day. In the beginning of the week, the most active regions were NOAA AR 11348 (Cat 42) on the west …

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SIDC Weekly Bulletin

:Issued: 2011 Nov 14 2110 UTC:Product: documentation at http://www.sidc.be/products/bul#——————————————————————–## SIDC Weekly bulletin on Solar and Geomagnetic activity            ##——————————————————————–#WEEK 567 from 2011 Nov 07  SOLAR ACTIVITY————– Seventeen sunspot groups were detected during the week: Catania numbers 27 (NOAA AR 1334), 29 (NOAA AR 1337), 30 (NOAA AR 1338), 31 (NOAA AR 1339), 32 (NOAA AR 1344), 33 (NOAA AR 1340), 34 …

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SIDC Weekly Bulletin

:Issued: 2011 Nov 08 1350 UTC:Product: documentation at http://www.sidc.be/products/bul#——————————————————————–## SIDC Weekly bulletin on Solar and Geomagnetic activity            ##——————————————————————–#WEEK 566 from 2011 Oct 31  SOLAR ACTIVITY————–Several active regions were present on the solar disk during this week. With the appearance on the eastern limb of NOAA AR 11339, solar flaring activity increased from active to eruptive late on November 2. Several …

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SIDC Weekly Bulletin

:Issued: 2011 Oct 31 2039 UTC:Product: documentation at http://www.sidc.be/products/bul#——————————————————————–## SIDC Weekly bulletin on Solar and Geomagnetic activity            ##——————————————————————–#WEEK 565 from 2011 Oct 24  SOLAR ACTIVITY————– Solar activity was low to moderate during this week. The Sun only producedsmall C-flares, most of them occurring in NOAA AR 11324, 11330 or 11333.The proton flux observed by GOES (>10 MeV) reached the proton …

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SIDC Weekly Bulletin

:Issued: 2011 Oct 25 0942 UTC:Product: documentation at http://www.sidc.be/products/bul#——————————————————————–## SIDC Weekly bulletin on Solar and Geomagnetic activity            ##——————————————————————–#WEEK 564 from 2011 Oct 17  SOLAR ACTIVITY————–Solar activity was moderate during the week with3 M class flares, which occurred on Oct. 20, 21 and 22. The M1.6 flare of Oct. 20 (0325 UT peak time)was partially occulted as it occurred behind the …

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SIDC Weekly Bulletin

:Issued: 2011 Oct 19 1100 UTC:Product: documentation at http://www.sidc.be/products/bul#——————————————————————–## SIDC Weekly bulletin on Solar and Geomagnetic activity            ##——————————————————————–#WEEK 563 from 2011 Oct 10  SOLAR ACTIVITY————–Only C-class flares were seen during the week. No Earth directed CMEs occurred. GEOMAGNETIC ACTIVITY——————–Geomagnetic activity was quiet to unsettled during the week. No active periods were observed. The unsettled activity was due to a fast …

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SIDC Weekly Bulletin

:Issued: 2011 Oct 11 0745 UTC:Product: documentation at http://www.sidc.be/products/bul#——————————————————————–## SIDC Weekly bulletin on Solar and Geomagnetic activity            ##——————————————————————–#WEEK 562 from 2011 Oct 03  SOLAR ACTIVITY————–Flaring activity was situated in the C-level. The number of C-flares gradually decreased in the course of the week. On Oct 04, a slow CME left the Sun. The source region was situated in the southern …

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SIDC Weekly Bulletin

:Issued: 2011 Oct 04 1454 UTC:Product: documentation at http://www.sidc.be/products/bul#——————————————————————–## SIDC Weekly bulletin on Solar and Geomagnetic activity            ##——————————————————————–#WEEK 561 from 2011 Sep 26  SOLAR ACTIVITY————–The week started with a moderate activity due to 2 M flares from active region NOAA1302 (Catania#82) on Sept.26. This F active region, which featured a naked-eye sunspot, was the dominant one early in the week. …

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