Current Filter Wheel Configuration Lower Filter Wheel (FW1)Position | Display Name | Focus Offset (µm) | FITS Header Value |
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1 | OPEN | 0 | OPEN | 2 | SL-u | 245 | SDSS-U | 3 | SL-g | 245 | SDSS-G | 4 | SL-r | 245 | SDSS-R | 5 | SL-i | 245 | SDSS-I | 6 | SL-z | 245 | SDSS-Z | 7 | CN | 240 | CN | 8 | C3 | 240 | C3 | 9OH | Hα-off | 240220 | OHHALPHAOFF | 10 | BC | 240 | BC |
Upper Filter Wheel (FW2)Position | Display Name | Focus Offset (µm) | FITS Header Value |
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1 | OPEN | 0 | OPEN | 2 | DARK | 0 | DARK | 3 | Ha-onC2 | 220240 | HALPHAONC2 | 4 | YishGC | 170240 | YISHGC | 5 | VR | 270 | VR | 6 | I | 205 | I | 7 | R | 205 | R | 8 | V | 170 | V | 9 | B | 170 | B | 10 | U | 205 | U |
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