ASCA weekly

[nagase@astro.isas.ac.jp]

Dear ASCA users,

An ASCA TOO observation of an X-ray transient,  XTE J2012+381, an 
outburst of which was discovered with RXTE/ASM, was proposed. We 
decided to perform an ASCA TOO observation during the span on May 29 6:00 
to May  30 4:30 (UT). The source is suspected to be a black hole candidate
and it may be still in the intesity incleasing phase at the time of the ASCA 
observation. The PI of the TOO is N. White, US CoIs; TBD, Janese CoIs; 
F. Nagase, Y. Ueda, T. Dotani, and TBA. The cluster, MS 1910+6736, once 
installed in the span is carried over and will be ischeduled in the next 
visible window.

In the re-servay  project of the central part (Y. Ueda) of the previous 
"Large Sky Survey" region, the pointing numbers were reduced from 10 
pointings to 4 pointings to get deeper exposure in each field.

F. Nagase

-----------------------------------------------------------------------------
A S C A     WEEKLY  OBSERVATION   PLAN
-----------------------------------------------------------------------------
May 28 - June 9,  1998,		ver-3   (98/ 5/29)
(ISAS contact scientist: 	T. TAMURA	(ttamura@astro.isas.ac.jp)
-----------------------------------------------------------------------------
Date	MNV	Target 		Tag. 	Exp.	Observation	PI or 
	start	name  		Cat.	(ks)	Cat.  Pri./TC	 ( PPI/Co-PI)
-----------------------------------------------------------------------------
5/28	 3:20	5C12_75		CG	40	JPN	2/n	K. Hayashida
						(AO-5 Supplemental)
5/29	 6:00	XTE J2012+381	Bin.	40	TOO	1/Y	N. White
									 
5/30	 4:30	IRAS 00198-7926	AGN	100	JPN	2/n	Y. Ogasaka

6/ 1	20:20	CENT #1		CXB	50	JPN	1/n	Y. Ueda

6/ 3	 5:30	CENT #2		CXB	50	JPN	1/n	Y. Ueda

6/ 4	13:20	CENT #3		CXB	45	JPN	1/n	Y. Ueda

6/ 5	16:20	CENT #4		CXB	55	JPN	1/n	Y. Ueda

6/ 7	 0:30	H1426+428	AGN	40	US	2/n	R. Sambruna

6/ 8	 0:30	IRAS12397+3333	AGN	40	ESJ	2/n	D. Grupe

(6/ 9	 0:20,   MNV 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, 
OT: Observatory Time (Calibration, maintenance and TOO)