GIRAFFE High Resolution Mode OLD settings
This table is for the OLD HR GRATING replaced in early October 2003 by a newer, higher-efficiency model.
| Filter | Theta | Order | Wl start | Wl center | Wl end | Band | R IFU/Argus | R MEDUSA |
|---|---|---|---|---|---|---|---|---|
| 1 | 61.1 | 15 | 370.0 | 379.0 | 386.7 | 16.7 | 36000 | 22500 |
| 2 | 58.2 | 14 | 385.4 | 395.8 | 404.9 | 19.5 | 31300 | 19600 |
| 3 | 63.0 | 14 | 403.3 | 412.4 | 420.1 | 16.8 | 39000 | 24800 |
| 4 | 59.1 | 13 | 418.8 | 429.7 | 439.3 | 20.5 | 32500 | 20350 |
| 5 | 63.9 | 13 | 437.6 | 447.1 | 455.2 | 17.6 | 41500 | 26000 |
| 6 | 59.1 | 12 | 453.8 | 465.6 | 475.9 | 22.2 | 32500 | 20350 |
| 7 | 63.9 | 12 | 474.2 | 484.5 | 493.2 | 19.0 | 42700 | 26700 |
| 8 | 58.5 | 11 | 491.7 | 504.8 | 516.3 | 24.6 | 32000 | 20000 |
| 9 | 63.2 | 11 | 514.3 | 525.8 | 535.6 | 21.2 | 41400 | 25900 |
| 10 | 57.3 | 10 | 533.9 | 548.8 | 561.9 | 28.0 | 31600 | 19800 |
| 11 | 62.0 | 10 | 559.7 | 572.8 | 584.0 | 24.3 | 38700 | 24200 |
| 12 | 55.6 | 9 | 582.1 | 599.3 | 614.6 | 32.6 | 29900 | 18700 |
| 13 | 60.3 | 9 | 612.0 | 627.3 | 640.6 | 28.6 | 36000 | 22500 |
| 14 | 65.1 | 9 | 638.3 | 651.5 | 662.6 | 24.3 | 46000 | 28800 |
| 15 | 56.3 | 8 | 660.6 | 679.7 | 696.5 | 35.9 | 30800 | 19300 |
| 16 | 61.1 | 8 | 693.7 | 710.5 | 725.0 | 31.4 | 38000 | 23900 |
| 17 | 65.9 | 8 | 722.5 | 737.0 | 749.0 | 26.5 | 48300 | 30200 |
| 18 | 55.4 | 7 | 746.9 | 769.1 | 788.9 | 42.0 | 29400 | 18400 |
| 19 | 60.1 | 7 | 785.6 | 805.3 | 822.5 | 36.9 | 35500 | 22200 |
| 20 | 64.9 | 7 | 819.5 | 836.6 | 850.9 | 31.4 | 45500 | 28600 |
| 21 | 53.2 | 6 | 848.4 | 875.7 | 900.1 | 51.7 | 25900 | 16200 |
| 22 | 57.9 | 6 | 896.0 | 920.5 | 941.9 | 45.9 | 30400 | 19000 |
- - Filter is the filter number;
- - Theta is the angle of diffraction with the grating normal;
- - Order is the working echelle order;
- - Wl start, center, end are wavelengths at the edges and center of the CCD;
- - Band is the covered spectral passband;
- - resolving power, R, obtained in IFU/Argus mode;
- - resolving power, R, obtained in MEDUSA mode.
- - Theta is the angle of diffraction with the grating normal;
Remember that these data are only appropriate to observations taken before October 10th 2003, when the HR grating was changed by a higher-efficiency model.