Nobeyama Radioheliograph Event 19990430_0355


EventID : 19990430_0355
Keyword : Flare
Observer : K. Hori
Start : 1999-04-30 03:53:14
Peak : 1999-04-30 03:55:40
End : 1999-04-30 04:02:00
Position: N23W17
Maximum Correlation @17GHz (x10^-4) : 14
Maximum Brightness Temperature @17GHz : 5.4e+05
GOES: C4.2
NOAA Number: 8522


Impulsive Flare


Full disk image at 17GHz (22:56:20UT). FOV of the box is 392" x 392".



Upper panel: Time evolution of the maximum Tb (Stokes I) in the box.
Lower panel: Time evolution of the degree of polarization, defined as |max V|/(max I) in the box.
Data points are plotted every 10 min.


Evolution of Stokes I (R+L) map in the box. The brightness is normalized to Max Tb in each image. The blue contours show the position of L-polarized source (V < -10^4 K).
Mpeg movie (10 min. interval)

AR8522 from SoHO EIT 171 A at 19:00UT on April 29, 1999.