Topical Issue - Space Weather Instrumentation
Open Access
Technical Article

Table 4

The SunCET spectrograph SNRs for various strong emission lines. Irradiances are from SDO/EVE (Woods et al., 2011). SNR at all heights is above the level that ISO 12232 defines as “excellent”.

Wavelength (Å) 171 193.5 195 304 335
Irradiance (W/m2/sr) 6.7 × 10−4 4.5 × 10−4 6.3 × 10−4 1.0 × 10−3 1.0 × 10−4
Integration (s) 10 10 10 10 10
Counts/pixel 737 495 693 1100 110
SNR 272 237 282 444 145

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