Nobeyama Radioheliograph Event 19990803_0500


EventID : 19990803_0500
Keyword : post flare activity
Observer : KH
Start : 1999-08-03 04:58:46
Peak : 1999-08-03 05:00:59
End : 1999-08-03 06:08:25
Position: S19W49
Maximum Correlation @17GHz (x10^-4) : 70
Maximum Brightness Temperature @17GHz : 6.1e5
GOES: --
NOAA Number: 8647?


An enhanced activity after the X-class flare.


FOV of the box is 737" x 491".


Time evolution of the maximum Tb.
The solid line shows Max (R+L) and the dotted line shows Max (R-L).
Data points are plotted every 10 min.


Stokes I (R+L) map in the box. The brightness is normalized to the maximum Tb in each image.
Mpeg movie (10 min. interval)


Nobeyama polarimeter plot


The X-class flare was detected by polarimeters but not by NoRH.
It seems that the turn over frequency is around 17 GHz.



HiRAS dynamic spectra (from CRL Hiraiso).