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| Space Telescope Science Institute |
| STIS Instrument Handbook |
| help@stsci.edu |
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Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 20 > Chapter 13: Spectroscopic Reference Material > 52X0.2 Aperture
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.
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