ASCA weekly

[Fumiaki NAGASE <nagase@astro.isas.ac.jp>]

Dear ASCA users,

Last week we have successfully finished all the procedure to replaced 
the degraded SKEW-2 gyro to the Z gyro. At present the ASCA attitude
control system has neen operating normally with the combination of X-,
Y-, and Z-gyros and we are observing targets along the schedule issued
last week. I am sending a revised short-term schedule for the period of
May 21 to June 2.

Because of the gyro trouble, some  targets  once scheduled, i.e., 
4U1907+07 (PI; P. Michelson), IRAS 19254-7245 (PI; H. Awaki), 
Mkn 509 (PI; M. Matsuoka) and IRAS 20181-224 (PI; T. Nakagawa),  
are carried over to the next window  in fall. 

F. Nagase

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A S C A     WEEKLY  OBSERVATION   PLAN
-----------------------------------------------------------------------------
May  21 - June 2	 ver-2 (revised 96/05/13)
(ISAS contact scientist:  T. TAKAHASHI 	takahasi@astro.isas.ac.jp)
-----------------------------------------------------------------------------
Date	MNV	Target 		Tag. 	Exp.	Observation	PI or 
	start	name  		Cat.	(ks)	Cat.  Pri./TC	 ( PPI/Co-PI)
-----------------------------------------------------------------------------
5/21	 1:50	0103-72.6 #1	SNR	40	JPN	1/n	I. Hayashi

5/22  	 0:20	PKS 2155-304 #1	AGN	10	USJ	1/Y	J.G. Stacy

5/22	 6:30	0103-72.6 #2	SNR	40	JPN	1/n	I. Hayashi

5/23	 6:30	NGC 4258 #1	Gal. 	34	JPN	2/n	Y. Ishisaki

5/24	 3:20	PKS 2155-304 #2	AGN	10	USJ	1/Y	J.G. Stacy

5/24	 9:30	LMC X-4		Bin.	50	USJ	1/Y	S. Vrtilek

5/26	 0:10	Mr 2251-178 #1	AGN	20	JPN	2/Y	C. Otani

5/26	16:00	PKS 2155-304 #3	AGN	10	USJ	1/Y	J.G. Stacy

5/26	22:20	NGC 3607/3608	Gal.	80	JPN	2/n	N. Arimoto

5/29	 5:50	MS 1147.3+1103	CG	30	MUJ	1/n	J. Henry
								/T. Tsuru
5/30	 5:50	NGC 4258 #2	Gal. 	33	JPN	2/n	Y. Ishisaki

5/31	 3:20	HE 1104-1805	AGN	40	US	1/n	J. Bechtold

6/ 1	 9:00	PKS 2251+113	AGN	30	US	1/n	S. Mathur

(6/ 2	 6:10	to next target)
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(Note) Obs. Cat. JPN: Japan time, US: US time, JUS: Japan-US Collaboration, 
USJ: US-Japan Collaboration,  MJU: Merged Japan-US (PPI=Japan), 
MUJ: Merged US-Japan (PPI=US),  ESJ: ESA-Japan Program, 
MOT: Manager's observatory time (Calibration and maintenance)