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| Spectrograph |
Resolution
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R = lamda / delta lambda
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| FIASCO |
Grating |
Fibre fed |
~5000 |
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| LECHES |
Echelle |
Fibre fed |
~19000 to ~20000 |
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| LOROS |
3 Prisms (in line) |
25 µm Slit |
~300 Red to ~1000 Blue |
1st sky tests (Oct. 9, 2003) |
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| BESOS |
Prism |
25 µm Slit |
~ |
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| TRAGOS |
Transmission grating + wedge |
25 µm Slit |
~230 @ 546 nm (50µm pinhole)
Results lab. tests 31.3.2004
~270 @ 350 nm (25µm slit)
~370 @ 546 nm (25µm slit)
~600 @ 800 nm (25µm slit)
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1st lab. tests (Feb.18, 2003) |
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| DADOS |
Reflection gratings with
200 lines/mm
900 lines/mm |
3 Slits
25, 35, 50 µm |
25 µm Slit @ 550 nm
low res. ~500
high res. ~3000 |
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