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   51185
   Radio-loud quasar PKS 0405-385 (z=1.285) emits a radio signal
   fluctuating as much as 60% in half an hour at wavelength of 3 cm. In
   order to account for its output of radio waves and other radiations
   (including gamma rays) from such a compact system, a temperature of
   about 10^20 K is needed. Now this source is considered to be an extreme
   form of blazar or the interstellar scintillation is causing the rapid
   radio fluctuations. We propose 100 ksec observations of this source
   with ASCA to see the time variation in X-ray band deliberately and to
   make clear the physical properties of this source.
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