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Subject: MM#009 Default HESSI Target Date: Fri, 19 Jul 2013 11:54:46 +0100 Dear RHESSI Collaborators, The level of solar activity is low. NOAA region 11791 has continued to decay over the past 24 hours, decreasing in spot area, number of spots and being reclassified as a beta/C-type sunspot group. A new region, designated as NOAA 11800, has rotated over the South East limb and has been associated with two C2.3 flares on 18-Jul-2013 at 17:56 UT and 19:57 UT. However, the UV flare ribbons of the second of these flares seem to be located within the currently unspotted region located further East than NOAA 11800. NOAA 11793 remains the largest region on disk and has retained a beta-gamma/E-type sunspot group classification. This region has increased in spot number over the past 24 hours, and a small positive polarity spot has emerged over the past 6 hours to the North of the leading negative polarity spot. Further B-class activity is expected in the following 24-hour period, with a good chance for C-class events. The position of NOAA 11793 on 19-Jul-2013 at 11:00 UT is: N20E18, ( -275", 253" ) See http://www.SolarMonitor.org for images and http://solar.physics.montana.edu/max_millennium/ops/observing.shtml for a description of the current Max Millennium Observing Plan. Regards, Shaun Bloomfield (Trinity College Dublin) Received on Fri Jul 19 2013 - 04:56:20 MDT |
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