Nobeyama Radioheliograph Event 20000318_2354

EventID : 20000318_2354
Keyword : Flare
Start : 2000-03-18T23:24:34.000
Peak : 2000-03-18T23:54:14.000
End : 2000-03-19T00:52:23.000
Position: S17W65
X (arcsec) : 845
Y (arcsec) : -246
Maximum Correlation @17GHz (x10^-4) : 2087
Maximum Brightness Temperature @17GHz : 9.9e+07
Area_src/Area_beam @17GHz : 7.2
Maximum flux @17GHz (SFU) : 1478
Maximum flux @34GHz (SFU) : 862
Number of Impulsive fluctuation : 0
GOES: M3.9
NOAA Number: 8906
Yohkoh HXT (L,M1,M2,H): (254,157,92,48)

(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

HXT image overlaid with NoRH contours. (green/blue) NoRH 17/34GHz brightness temperatures in logarithmic scale. Field of View is the same as Partial Image above Contour levels are log10(Tb) = 5,6,7,8,...