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Spatial Analysis

This chapter deals with analyzing source positions and spatial structure and with image calibration. Depending on the specific scientific task, the user may wish to block or section the input data file for convenience (See also Display). See Table 6.1 for the dimensions of ROSAT and Einstein images:

Table 6.1  ROSAT and Einstein Field Dimensions
				Field	Block to
Inst't	Mission	Pixel Size	Dimension	of View	reach 512$\ast$512
PSPC	ROSAT	0.5 $^{\prime\prime}$	153602	2$^{\circ}$	30
HRI	ROSAT	0.5 $^{\prime\prime}$	81922	40$^{\prime}$	16
IPC	Einstein	8 $^{\prime\prime}$	10242	1$^{\circ}$	2
HRI	Einstein	0.5 $^{\prime\prime}$	40962	40$^{\prime}$	8