Hida DST Ha Observations on 30th April through 01 May, 2004 (UT)

1. Observational summary.

   Start	End	X	Y	P	r(DST)	p(DST)	Vertical Spectrograph & Note
   23:35	00:27	521	-803	213"	15'58"	189deg41'	The prominence on the west limb. Spectra of H-alpha, beta, He D3, Ca2K, and Ca2H lines were obtained by locating the slit at the foot-point of the target prominence. Extra-long exposure time was employed for the spectral observations in order to diagnose the physical state of the very faint structures including the prominence-corona transition region.
   02:16	03:08	521	-803	213"	15'58"	189deg41'	The same prominence. The same observation as the previous was carried out.

2. The target regions

   H-alpha full disk images (6562.81A) showing the target regions.
   Both images were obtained with the Flare Monitoring Telescope (FMT).

3. Click the links below to access the mpeg files.