52X0.5 Aperture

Description

This slit is designated for use with the first- order gratings and prism and is a good slit for spectrophotometric observations of point sources.

Special Considerations

Observations with this slit do not need to be preceded by a PEAKUP. Be aware of effects of OTA scatter on the line profiles when observing point sources in wide slits (see Section 13.7). Targets not centered on the slit along the spatial direction can experience significant shifts in wavelength.

Table 13.21: 52X0.5 Throughputs.

λ	% Throughput
1200	49.4
1800	87.8
2400	89.8
3000	91.2
3600	92.1
4200	92.9
4800	93.3
5400	93.4
6000	93.3
6600	93.2
7200	92.9
7800	92.8
8400	93.2

Aperture	Projected Length (arcsec)			Width (arcsec)
	CCD	MAMA (M-modes)	MAMA (L-modes)
52X0.5	52.0	28.0	25.0	0.5

Figure 13.68: 52X0.5 Aperture Throughput as a Function of Wavelength