The Coude Echelle Spectrographs

Appendix A2: Data for UCLES with the 79 lines/mm Grating

Sections: Coverage of the Tek CCD | Coverage of the MITLL CCDs | Spectral Format Tables
Next: Data for UHRF | Contents | Home

Coverage of the Tek CCD

The echellogram in Figure 1 shows the approximate coverage for the Tek CCD; the scale in mm allows other detectors to be drawn on. Coverage for the wavelength of interest can be investigated using the ECHWIND program (Section 2.2). The coverage for each order is given in the Spectral Format Tables below.

Figure 1: Echellogram for UCLES 79 lines/mm grating
 

Coverage of the MITLL CCDs


As discussed in Section 1.4, vignetting limits the coverage obtained with larger detectors.
The unvignetted region which can be observed is 38.5 x 18.8 mm (for less than 10% vignetting). The region covered at 50% vignetting is 60 x 34 mm, which is approximately the entire LL chip.

Figure 2 shows the coverage of the MITLL2 CCD. The level of vignetting is marked, and this removes any advantage in rotating the CCD as extra orders covered would be heavily vignetted. MITLL3 has the same coverage and limitations as MITLL2.

Coverage for the wavelength of interest can be investigated using the ECHWIND program (Section 2.2). The coverage for each order is given in the Spectral Format Tables below.


Figure 2: Coverage of the MITLL CCDs, showing vignetting limitations.

Spectral Format Tables

Abbreviations used:


 ORD  WAVEMIN WAVECENTR WAVEMAX   FSR    FSR    LD    CDMIN  CDCEN  CDMAX ORSEP
        (A)      (A)      (A)     (A)   (mm)  (A/mm)   (mm)   (mm)   (mm)  (mm)
  75  2983.29  3003.31  3023.33  40.04  30.98  1.293   0.00   1.48   2.92 2.919
  74  3023.55  3044.12  3064.69  41.14  31.40  1.310   2.94   4.38   5.80 2.860
  73  3064.89  3086.03  3107.16  42.27  31.83  1.328   5.81   7.23   8.61 2.803
  72  3107.35  3129.08  3150.81  43.46  32.27  1.347   8.62  10.01  11.37 2.746
  71  3150.98  3173.33  3195.68  44.69  32.72  1.366  11.38  12.74  14.07 2.691
  70  3195.84  3218.83  3241.82  45.98  33.19  1.385  14.08  15.42  16.72 2.637
  69  3241.97  3265.63  3289.30  47.33  33.67  1.406  16.73  18.03  19.31 2.584
  68  3289.43  3313.79  3338.16  48.73  34.17  1.426  19.32  20.60  21.85 2.532
  67  3338.28  3363.38  3388.48  50.20  34.68  1.448  21.86  23.11  24.34 2.480
  66  3388.59  3414.46  3440.32  51.73  35.20  1.470  24.34  25.57  26.77 2.430
  65  3440.42  3467.09  3493.76  53.34  35.74  1.492  26.78  27.98  29.16 2.381
  64  3493.84  3521.35  3548.86  55.02  36.30  1.516  29.16  30.34  31.49 2.332
  63  3548.94  3577.33  3605.72  56.78  36.88  1.540  31.50  32.65  33.78 2.285
  62  3605.78  3635.10  3664.41  58.63  37.47  1.565  33.78  34.92  36.02 2.238
  61  3664.47  3694.75  3725.04  60.57  38.09  1.590  36.02  37.13  38.22 2.192
  60  3725.08  3756.38  3787.68  62.61  38.72  1.617  38.22  39.31  40.36 2.148
  59  3787.72  3820.09  3852.46  64.75  39.38  1.644  40.37  41.43  42.47 2.103
  58  3852.48  3885.98  3919.48  67.00  40.06  1.673  42.47  43.51  44.53 2.060
  57  3919.50  3954.18  3988.87  69.37  40.76  1.702  44.53  45.55  46.55 2.018
  56  3988.87  4024.81  4060.74  71.87  41.49  1.732  46.55  47.55  48.52 1.976
  55  4060.74  4097.99  4135.25  74.51  42.24  1.764  48.52  49.50  50.46 1.935
  54  4135.23  4173.88  4212.53  77.29  43.02  1.797  50.46  51.42  52.35 1.895
  53  4212.50  4252.62  4292.74  80.24  43.84  1.830  52.35  53.29  54.21 1.855
  52  4292.71  4334.39  4376.06  83.35  44.68  1.866  54.21  55.13  56.02 1.816
  51  4376.02  4419.35  4462.68  86.65  45.55  1.902  56.02  56.92  57.80 1.778
  50  4462.63  4507.71  4552.78  90.15  46.47  1.940  57.80  58.68  59.54 1.741
  49  4552.73  4599.66  4646.60  93.87  47.41  1.980  59.54  60.40  61.24 1.705
  48  4646.53  4695.44  4744.35  97.82  48.40  2.021  61.24  62.09  62.91 1.670

 ORD  WAVEMIN WAVCENTR  WAVEMAX   FSR    FSR    LD    CDMIN  CDCEN  CDMAX ORSEP
        (A)      (A)      (A)     (A)   (mm)  (A/mm)   (mm)   (mm)   (mm)  (mm)

  47  4744.28  4795.29  4846.31 102.03  49.43  2.064  62.91  63.74  64.55 1.635
  46  4846.22  4899.48  4952.73 106.51  50.51  2.109  64.54  65.36  66.15 1.601
  45  4952.64  5008.29  5063.94 111.30  51.63  2.156  66.14  66.94  67.71 1.568
  44  5063.84  5122.04  5180.25 116.41  52.80  2.205  67.71  68.49  69.25 1.536
  43  5180.14  5241.08  5302.02 121.89  54.03  2.256  69.25  70.01  70.75 1.506
  42  5301.90  5365.78  5429.66 127.76  55.32  2.310  70.75  71.50  72.23 1.476
  41  5429.53  5496.56  5563.59 134.06  56.67  2.366  72.22  72.96  73.67 1.447
  40  5563.46  5633.88  5704.30 140.85  58.08  2.425  73.67  74.39  75.09 1.420
  39  5704.15  5778.23  5852.31 148.16  59.57  2.487  75.09  75.80  76.48 1.393
  38  5852.15  5930.18  6008.21 156.06  61.14  2.553  76.48  77.18  77.85 1.368
  37  6008.04  6090.34  6172.64 164.60  62.79  2.621  77.85  78.53  79.19 1.346
  36  6172.45  6259.39  6346.33 173.87  64.54  2.694  79.19  79.86  80.51 1.324
  35  6346.12  6438.10  6530.07 183.95  66.38  2.771  80.51  81.18  81.82 1.304
  34  6529.85  6627.31  6724.77 194.92  68.33  2.853  81.82  82.47  83.10 1.287
  33  6724.54  6827.99  6931.45 206.91  70.40  2.939  83.10  83.75  84.37 1.273
  32  6931.19  7041.21  7151.23 220.04  72.60  3.031  84.37  85.01  85.63 1.260
  31  7150.95  7268.18  7385.41 234.46  74.94  3.128  85.63  86.27  86.88 1.252
  30  7385.11  7510.28  7635.45 250.34  77.44  3.233  86.88  87.52  88.13 1.247
  29  7635.12  7769.06  7903.01 267.90  80.11  3.344  88.13  88.76  89.37 1.246
  28  7902.65  8046.33  8190.01 287.37  82.97  3.463  89.37  90.01  90.62 1.251
  27  8189.60  8344.13  8498.65 309.04  86.05  3.592  90.62  91.26  91.88 1.262
  26  8498.19  8664.82  8831.45 333.26  89.36  3.730  91.88  92.53  93.16 1.280
  25  8830.93  9011.16  9191.38 360.45  92.93  3.879  93.16  93.82  94.47 1.307
  24  9190.79  9386.34  9581.89 391.10  96.80  4.040  94.46  95.15  95.81 1.344
  23  9581.21  9794.13 10007.04 425.83 101.01  4.216  95.81  96.51  97.20 1.395
  22 10006.26 10238.97 10471.67 465.41 105.60  4.407  97.20  97.94  98.66 1.462
  21 10470.75 10726.14 10981.52 510.77 110.63  4.617  98.66  99.44 100.21 1.549
  20 10980.44 11261.99 11543.53 563.10 116.16  4.847 100.20 101.04 101.86 1.661


Ray Stathakis (ras@aaoepp.aao.gov.au)
Last Update: 29 March 2000