Nobeyama Radioheliograph Event 20020825_2347

EventID : 20020825_2347
Keyword : Flare
Start : 2002-08-25T23:42:26.000
Peak : 2002-08-25T23:47:03.000
End : 2002-08-26T01:40:43.000
Position: S17W42
X (arcsec) : 614
Y (arcsec) : -373
Maximum Correlation @17GHz (x10^-4) : 254
Maximum Brightness Temperature @17GHz : 3.7e+06
Area_src/Area_beam @17GHz : 2.3
Maximum flux @17GHz (SFU) : 47
Maximum flux @34GHz (SFU) : 43
Number of Impulsive fluctuation : 0
GOES: M1.9
NOAA Number: 83
RHESSI Energy (keV): 6-12

(top panel) GOES plot.
(bottom panel) NoRH 17/34 GHz correlation plot; (white line) 17 GHz (yellow line) 34 GHz .

Full sun 17GHz image. The flare region is indicated by the solid box.


Partial 17/34GHz images. Color map shows brightness temperature, contour shows 17GHz (r-l)/(r+l) levels, where 'r' and 'l' indicates right- and left-handed circularly-polarized components, respectively. Field of View is 314. x 314. arcsec
Contour levels of the thick lines are (r-l)/(r+l)=-0.1,-0.2,.. and those of the thin lines are (r-l)/(r+l)= +0.1,+0.2,...
Orange circle at top-left indicates the half-max. beam size