1. Please select one way to search data ... ?

	Coordinates:	RA: Degree (e.g. 20.321 or 0'15'25,15'23'0, between 0 ~ 360)
		DEC: Degree (e.g. -15.321 or 0'15'25,15'23'0, between -90 ~ 90)
	Coordinate System:	J2000 B1950 Galactic
	Search Radius:	arc min deg arcsec Default uses the optimum radius for each catalog searched.
	If you want to search by Object Name ,Please first resolve from here:
		(e.g. Cyg X-1 )
	Observation Dates:	YYYY-MM-DD hh:mm:ss or MJD: DDDDD.ddd
		The time portion of the date is optional. Separate multiple dates/ranges with (;). Range operator is ~. (e.g. 1992-12-31; 1997-03-20 ~ 2000-10-18)
	Observation ID:	YYYY-MM-DD hh:mm:ss or MJD: DDDDD.ddd

2. What missions and catalogs do you want to search?     

	Recent X-Ray Missions
	ASCA	Chandra (CXC)	ROSAT	RXTE
	XMM-Newton