Nobeyama Radioheliograph Event 20000427_0550

EventID : 20000427_0550
Keyword : Flare
Start : 2000-04-27T05:49:46.000
Peak : 2000-04-27T05:50:33.000
End : 2000-04-27T06:03:09.000
Position: S15W01
X (arcsec) : 20
Y (arcsec) : -187
Maximum Correlation @17GHz (x10^-4) : 304
Maximum Brightness Temperature @17GHz : 4.3e+06
Area_src/Area_beam @17GHz : 4.2
Maximum flux @17GHz (SFU) : 97
Maximum flux @34GHz (SFU) : 16
Number of Impulsive fluctuation : 11
GOES: C1.7
NOAA Number:
Yohkoh HXT (L,M1,M2,H): (,,,)

(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

(top) NoRH 17/34 GHz correlation plot; Diamonds indicate the data points of event mode (50ms/100ms cadence): (white line) 17 GHz (yellow line) 34 GHz .
(bottom) Temporal derivative of correlation plot. Unit is (s^-1). Dotted line indicate 1 %/sec boundary.

50/100ms movie