ASCA weekly

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

Dear ASCA users:

I am sending a revised ASCA observation schedule for the period of August 26 
to September 6. Nothing a change in the schedule itself but the time critical
target I mentioned in the comment of the previous mail is wrong. It is
not IRAS 03158+4227 but MCG 8-11-11. Sorry.

F. Nagase

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Next release of weekly ASCA schedule will happen after the week of August 6. 
Those who have observations in August and are planning to take a long 
vacation in July-August should contact with ISAS/NASA contact scientists 
as early as possible to confirm their observation plan, such as pointing 
coordinates, observation modes etc.

The time critical target MCG 8-11-11 is allocated in this week in 
coordination with the CGRO/OSSE observation. The Sun-source angles of 
the two pointings are 72 and 75 degrees, respectively. Since this angle is 
significantly smaller than 90 degree (or telescope is inclined toward the 
Sun),  significant degradation of the SIS data is suspected due to the DFE 
level change at the day-night transitions of the satellite and the light 
leakage on some chips of the CCD cameras. The observer of this target should 
examine carefully the SIS observation modes in consulting with the contact 
scientist. We do not guarantee the possible degradation of the SIS data for 
this kind of cases that are due to the requested time constraint.

F. Nagase

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A S C A     WEEKLY  OBSERVATION   PLAN
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August 26 - September 6, 1995;   Revised  	
(ISAS contact scientist:   T. KII  kii@astro.isas.ac.jp)
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Date	MNV	Target 		Tag. 	Exp.	Observation	PI or 
	start	name  		Cat.	(ks)	Cat.  Pri./TC	 (PPI/Co-PI)
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8/26	15:00	CL 0317+1521	CG	20	JPN	3/n	Y. Tawara

8/27	 2:10	3C 99		AGN	40	JPN	3/n	K. Tamura

8/28	 8:30	3C 109		AGN	40	ESJ	2/n	S. Allen

8/29	13:20	IRAS 17020+454	AGN	40	ESJ	2/n	W. Brandt

8/30	13:10	SVS13		Star	100	JPN	2/n	N. Kobayashi

9/ 2	 0:10	IC 359		Star	40	JPN	1/n	S. Ueno

9/ 3	 5:10	MCG 8-11-11 #1	AGN	10	ESJ	1/Y	P. Grandi

9/3	13:10	IRAS 03158+4227	AGN	40	JPN	3/n	T. Yamada

9/ 4	13:00	Perseus #3	CG	20	USJ	2/n	K. Arnaud

9/ 5	 1:50	X0331+53	Bin.	40	JUS	2/n	K. Mitsuda

9/ 6	 1:40	MCG 8-11-11 #2	AGN	10	ESJ	1/Y	P. Grandi

(9/ 6	 9:40	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