Space Telescope Science Institute  52X0.2E1, 52X0.2E2, and 52X0.2D1 Pseudo-apertures 52X0.5E1, 52X0.5E2, and 52X0.5D1 Pseudo-apertures

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.
% Throughput
1200
83.1
1800
87.9
2400
90.0
3000
91.3
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

 

52X0.2E1, 52X0.2E2, and 52X0.2D1 Pseudo-apertures 52X0.5E1, 52X0.5E2, and 52X0.5D1 Pseudo-apertures
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