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| Filter IRS, OSIRIS | Grating IRS, OSIRIS | ||
| Wavelength um (Not yet implemented, central wavelength only) | Source flux | ||
| Flux Units: | Magnitudes | ||
| Flambda (ergs/s/cm²/um) | |||
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Desired S/N ratio
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Number of pixels to sum
(typically 3-6 along slit) |
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Exposure Time
(seconds) |
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| Calculate S/N for specified Total Integration Time | |||
| Calculate Total Integration Time to reach Desired S/N | |||