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ASCA workshop on instruments calibration

Dear ASCA team members and ASCA users,

We are having an ASCA workshop on instruments calibration
on December 6-7, 1995, at ISAS. Attached below ia a preliminary
program of the meeting. We welcome comments on the problems related
with the ASCA instrument calibration. Since we reserve lot of time
for discussion, 5-min comments with 2-3 view graphs are available.
Those who has provided such a short comment can contact with the
chairperson of the session you wish to talk. 

Comments on the test of extended source analysis tools, fine calibration
at the Si, Au edges around 2 keV, the SIS pile-up effect and its correction,
further calibrations and software developments etc. are encouraged.

F. Nagase

Workshop on ASCA instrument calibration (preliminary program)
	Date;	1995 December 6-7
	Place;	ISAS Building-A 2nd floor Conference Room (Dec. 6) &
		     Building-A 1st floor Room #1134      (Dec. 7)	

Dec. 6 (Wed.) 10:30 - 12:30   	(chairperson;	H. Inoue) 

ASCA operation and observation status		- F. Nagase 		(20')
Critical review of current calibration status 	- R. Mushotsky		(30')
Raise problems from data analysis:
	Nitrogen abundance anomolies in stars 	- Nick White 		(20')
	AGN community concerns 			- Tahir Yaqoob		(20')
	comments and discussion						(30')

Dec. 6 (Wed.) 14:00 - 15:20	(chairperson;	H. Tsunemi)

SIS calibration;
	Current status of SIS response generator  - Geoff Crew		(20')
        Low energy calibration with 3C58 & 3C273  - K. Torii, T. Dotani	(20')
        New DFE correction program 		- T. Otani		(20')
        CTI calibration with Cas A 		- A. Yamashita		(20')

		-------coffee break -----------------

Dec. 6 (Wed.) 16:00 - 17:30	(chairperson;	R. Mushotzky)

        Gain, resolution and their histories 	- T. Dotani		(20')
        Possible ways to reverse the degradation of the SIS
						- Keith Gendreau	(20')
        What to do about grade 6 events? 	- Koji Mukai		(20')
	comments and discussion						(30')

Dec. 7 (Thr.) 10:30 - 12:40	(chairperson;	H. Kunieda)

XRT/GIS calibration;
        Improved response function (RMF,ARF) and relative 		
	normalization of SIS and GIS 		- M. Ishida		(20')
        Gain history and gain map 		- T. Kubo 		(20')
        Properties of non X-ray background 	- K. Makishima		(20')
        Status of ray-tracing program  		- Y.Tawara, A.Furusawa	(20')
	Stray light from offset Crab obs.	- M. Watanabe  		(20')
	comments and discussion						(30')

Dec. 7 (Thr.) 14:00 - 16:00	(chairperson;	N. White)
Other items;
        ASCA time assignment/conversion 	- M.Hirayama, F.Nagase  (20')
        Positional accuracy 			- Eric Gotthelf		(20')
        SIS Source catalog and Rev 2 processing - Eric Gotthelf		(20')
	discussions on calibration issues to be worked in AO4 phase	(60')