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STIS Instrument Handbook
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Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 22 > Chapter 13: Spectroscopic Reference Material > FP-SPLIT Slits0.2X0.2FP(A-E) Apertures

FP-SPLIT Slits
0.2X0.2FP(A-E) Apertures
Description
The FP-SPLIT slits consist of two sets of five slits–in each set the slits are all the same size. They are for use with the MAMA echelle gratings. It is possible to achieve high S/N data for bright targets, independently of the quality of the flat-field, by means of a special observing strategy wherein multiple spectrograms are obtained through these slits.
Special Considerations
See Chapter 12 for more details on obtaining high S/N spectral data.
 
Figure 13.78: Schematic of the STIS Fixed-Pattern Slit Configuration. AXIS1 corresponds to the dispersion direction, and AXIS2 to the spatial direction. Dimensions are not to scale.
FP-SPLIT Throughputs
Table 13.30: 0.2X0.2FP(A-E) Slit Throughputs
Figure 13.79: 0.2X0.2FP(A-E) Aperture Throughput as a Function of Wavelength

Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 22 > Chapter 13: Spectroscopic Reference Material > FP-SPLIT Slits0.2X0.2FP(A-E) Apertures

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