Table 2 List of bandpass filters produced by Andover Inc.
From: A new five-wavelength photometer operated in Tromsø (69.6°N, 19.2°E)
Center wavelength (error) | FWHM* (error) | Numbers in Fig. 1b | Targeted auroral emissions | |
|---|---|---|---|---|
Ch1 | 427.8 nm (+ 0.4/− 0 nm) | 2.0 nm (± 0.5 nm) | 14 | N2+ 1NG:427.8 mm |
Ch2 | 557.7 nm (+ 0.4/− 0 nm) | 2.0 nm (± 0.5 nm) | 15 | OI(1S): 557.7 nm |
Ch3 | 630.0 nm (+ 0.4/− 0 nm) | 2.0 nm (± 0.5 nm) | 16 | OI(1D): 630.0 nm |
Ch3 | 664.6 nm (± 2.0 nm) | 13 nm (± 3.0 nm) | 16 | N2 1PG: 664.6 nm |
Ch4 | 777.9 nm (+ 0.4/− 0 nm) | 2.5 nm (± 0.5 nm) | 17 | OI(3p5P): 777.4 nm |
Ch5 | 844.6 nm (+ 0.4/− 0 nm) | 2.0 nm (± 0.5 nm) | 18 | OI(3p3P): 844.6 nm |