|Space Telescope Science Institute|
|STIS Instrument Handbook|
This is the “utility” slit used with first-order gratings and the prism. It provides a good compromise between spectral resolution and photometric throughput.Observations using this slit do not need to be preceded by a PEAKUP.
Table 13.20: 52X0.2 Throughputs
Figure 13.67: 52X0.2 Aperture Throughput as a Function of Wavelength