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Supported and Available Apertures

The tables below provide a complete list of supported STIS apertures for spectroscopy, together with comments regarding their characteristics or purposes. For most apertures, the numbers in the aperture name are the length in the spatial direction followed by the width in the dispersion direction in arcseconds.

Only a small fraction of the 65 available spectroscopic apertures are currently supported on STIS. For more information on the available but unsupported apertures, see Appendix A.2.

For more detailed information regarding specific apertures see the Instrument Handbook.


Last Updated: 06/02/2023


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