Nobeyama Radioheliograph Event 20000721_0400


EventID : 20000721_0400
Keyword : Flare
Start : 2000-07-21T03:59:51.000
Peak : 2000-07-21T04:00:35.000
End : 2000-07-21T04:08:10.000
Position: N12E10
X (arcsec) : -172
Y (arcsec) : 123
Maximum Correlation @17GHz (x10^-4) : 114
Maximum Brightness Temperature @17GHz : 3.9e+06
Area_src/Area_beam @17GHz : 2.3
Maximum flux @17GHz (SFU) : 35
Maximum flux @34GHz (SFU) : 106
Number of Impulsive fluctuation : 0
GOES: C9.7
NOAA Number:
Yohkoh HXT (L,M1,M2,H): (24,21,11,11)



(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,...