STIS Instrument Handbook for Cycle 24
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Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 24 > Chapter 6: Exposure Time Calculations > 6.6 Tabular Sky Backgrounds

6.6
We provide a table of the high sky background numbers as plotted in Figure 6.1, for easy reference. See the text and the caption in Figure 6.1 for more details. The high sky values are defined as the earthshine at 38 from the limb and by the high zodiacal light of mV = 22.1 arcsec-2. The contributions of the geocoronal emission lines are tabulated separately in Table 6.5.
Table 6.5: Geocoronal (Airglow) Emission Lines
Lyα
13021
1
Blend of 1302.2, 1304.9, and 1306.0 with intensity ratio 3:2:1.


Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 24 > Chapter 6: Exposure Time Calculations > 6.6 Tabular Sky Backgrounds

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