Decker Names and Attributes
Decker Name (DECKNAME) is the name of the HIRES slit in use. It is a combination of the decker (A-E) and slit number (1-5) on that decker. DECKNAME corresponds to a certain set of slit dimensions as follows:
| Decker Name | Length (arcsec) | Width (arcsec) | Spectral Resolution |
| B1 | 3.5 | 0.574 | 72,000 |
| B2 | 7.0 | 0.574 | 72,000 |
| B3 | 14.0 | 0.574 | 72,000 |
| B4 | 28.0 | 0.574 | 72,000 |
| B5 | 3.5 | 0.861 | 48,000 |
| C1 | 7.0 | 0.861 | 48,000 |
| C2 | 14.0 | 0.861 | 48,000 |
| C3 | 28.0 | 0.861 | 48,000 |
| C4 | 3.5 | 1.148 | 36,000 |
| C5 | 7.0 | 1.148 | 36,000 |
| D1 | 14.0 | 1.148 | 36,000 |
| D2 | 28.0 | 1.148 | 36,000 |
| D3 | 7.0 | 1.722 | 24,000 |
| D4 | 14.0 | 1.722 | 24,000 |
| D5 | 0.119 | 0.179 | 230,000 |
| E1 | 1.0 | 0.400 | 103,000 |
| E2 | 3.0 | 0.400 | 103,000 |
| E3 | 5.0 | 0.400 | 103,000 |
| E4 | 7.0 | 0.400 | 103,000 |
| E5 | 1.0 | 0.800 | 51,000 |
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