COS Instrument Handbook for Cycle 24
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Cosmic Origins SpectrographInstrument Handbook for Cycle 24 > Chapter 5: Spectroscopy with COS > 5.10 Wavelength Settings and Ranges

5.10
Table 5.3 and Table 5.4 show the wavelength ranges recorded on the detectors for each valid combination of grating and central-wavelength setting at the nominal FP-POS=3 position (Section 5.8.2). The wavelength ranges spanned at other FP-POS settings may be estimated using the FP-POS step values provided in Chapter 13. Note, however, that uncertainties in the positioning of the Optics Select Mechanisms (Section 3.1.3) correspond to about half of an FP-POS step. These wavelength ranges are subject to change as the instrumental calibration evolves. The most recent measurements are available from the COS website

Cosmic Origins SpectrographInstrument Handbook for Cycle 24 > Chapter 5: Spectroscopy with COS > 5.10 Wavelength Settings and Ranges

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