Nobeyama Radioheliograph Event 19930218_0303

EventID : 19930218_0303
Keyword : Flare
Start : 1993-02-18T02:59:22.000Z
Peak : 1993-02-18T03:03:52.000Z
End : 1993-02-18T04:22:19.000Z
Position: N13W01
X (arcsec) : 29
Y (arcsec) : 349
Maximum Correlation @17GHz (x10^-4) : 222
Maximum Brightness Temperature @17GHz : 4.5e+06
Area_src/Area_beam @17GHz : 4.0
Maximum flux @17GHz (SFU) : 91
Number of Impulsive fluctuation : 0
GOES: M4.0
NOAA Number: 7425
Yohkoh HXT (L,M1,M2,H): (70,26,10,11)


(top panel) GOES plot.
(middle panel) NoRH 17 GHz correlation plot; (white line) 17 GHz (bottom panel) Yohkoh/HXT light curves; (white line) L-band, (red line) M1-band, (orange line) M2-band


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

movie

Partial 17GHz 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


SXT image overlaid with NoRH contours. (green) NoRH 17GHz brightness temperature in logarithmic scale. Field of View is the same as Partial Image above Contour levels are log10(Tb) = 5,6,7,8,...


HXT image overlaid with NoRH contours. (green) NoRH 17GHz brightness temperature in logarithmic scale. Field of View is the same as Partial Image above Contour levels are log10(Tb) = 5,6,7,8,...