Introduction
The wavelengths corresponding to each of the channels of the SE590 are
dependent on the placement of the diffraction grating in the camera head of the
instrument. Each channel is assumed to have an approximately 10 nm half-band
width and each channel is approximately 3 nm apart. The placement of the grating
can change over time, so period characterization of the camera head is
necessary. We use nine narrow-band pass filters to complete this
characterization. The procedure is defined following the current
wavelength characterization. Due to the changing of the wavelength
characterization over time, comparison between SE590 measurements
over long periods of time or between different SE590s is generally accomplished
by smoothing and resampling the data for 5 nm intervals from 400 to 1000 nm.
Current Wavelengths Assigned to Channels
Camera Head SN 1571 | Characterized on January 10, 2000 | Download Wavelengths (ascii - 4 Kb)| Channel | Wavelength (nm) |
| 1 | 356.66 |
| 2 | 359.35 |
| 3 | 362.04 |
| 4 | 364.73 |
| 5 | 367.43 |
| 6 | 370.13 |
| 7 | 372.83 |
| 8 | 375.54 |
| 9 | 378.25 |
| 10 | 380.96 |
| 11 | 383.68 |
| 12 | 386.40 |
| 13 | 389.13 |
| 14 | 391.85 |
| 15 | 394.59 |
| 16 | 397.32 |
| 17 | 400.06 |
| 18 | 402.80 |
| 19 | 405.55 |
| 20 | 408.30 |
| 21 | 411.05 |
| 22 | 413.80 |
| 23 | 416.56 |
| 24 | 419.33 |
| 25 | 422.09 |
| 26 | 424.86 |
| 27 | 427.63 |
| 28 | 430.41 |
| 29 | 433.19 |
| 30 | 435.97 |
| 31 | 438.76 |
| 32 | 441.55 |
| 33 | 444.34 |
| 34 | 447.14 |
| 35 | 449.94 |
| 36 | 452.74 |
| 37 | 455.55 |
| 38 | 458.36 |
| 39 | 461.17 |
| 40 | 463.98 |
| 41 | 466.80 |
| 42 | 469.63 |
| 43 | 472.45 |
| 44 | 475.28 |
| 45 | 478.12 |
| 46 | 480.95 |
| 47 | 483.79 |
| 48 | 486.63 |
| 49 | 489.48 |
| 50 | 492.33 |
| 51 | 495.18 |
| 52 | 498.04 |
| 53 | 500.89 |
| 54 | 503.76 |
| 55 | 506.62 |
| 56 | 509.49 |
| 57 | 512.36 |
| 58 | 515.23 |
| 59 | 518.11 |
| 60 | 520.99 |
| 61 | 523.88 |
| 62 | 526.76 |
| 63 | 529.66 |
| 64 | 532.55 |
| 65 | 535.45 |
| 66 | 538.35 |
| 67 | 541.25 |
| 68 | 544.15 |
| 69 | 547.06 |
| 70 | 549.98 |
| 71 | 552.89 |
| 72 | 555.81 |
| 73 | 558.73 |
| 74 | 561.66 |
| 75 | 564.58 |
| 76 | 567.51 |
| 77 | 570.45 |
| 78 | 573.39 |
| 79 | 576.33 |
| 80 | 579.27 |
| 81 | 582.21 |
| 82 | 585.16 |
| 83 | 588.12 |
| 84 | 591.07 |
| 85 | 594.03 |
| 86 | 596.99 |
| 87 | 599.95 |
| 88 | 602.92 |
| 89 | 605.89 |
| 90 | 608.86 |
| 91 | 611.84 |
| 92 | 614.82 |
| 93 | 617.80 |
| 94 | 620.79 |
| 95 | 623.77 |
| 96 | 626.76 |
| 97 | 629.76 |
| 98 | 632.75 |
| 99 | 635.75 |
| 100 | 638.76 |
| 101 | 641.76 |
| 102 | 644.77 |
| 103 | 647.78 |
| 104 | 650.79 |
| 105 | 653.81 |
| 106 | 656.83 |
| 107 | 659.85 |
| 108 | 662.88 |
| 109 | 665.91 |
| 110 | 668.94 |
| 111 | 671.97 |
| 112 | 675.01 |
| 113 | 678.05 |
| 114 | 681.09 |
| 115 | 684.14 |
| 116 | 687.18 |
| 117 | 690.24 |
| 118 | 693.29 |
| 119 | 696.35 |
| 120 | 699.40 |
| 121 | 702.47 |
| 122 | 705.53 |
| 123 | 708.60 |
| 124 | 711.67 |
| 125 | 714.74 |
| 126 | 717.82 |
| 127 | 720.90 |
| 128 | 723.98 |
| 129 | 727.06 |
| 130 | 730.15 |
| 131 | 733.24 |
| 132 | 736.33 |
| 133 | 739.42 |
| 134 | 742.52 |
| 135 | 745.62 |
| 136 | 748.72 |
| 137 | 751.83 |
| 138 | 754.94 |
| 139 | 758.05 |
| 140 | 761.16 |
| 141 | 764.28 |
| 142 | 767.39 |
| 143 | 770.51 |
| 144 | 773.64 |
| 145 | 776.77 |
| 146 | 779.89 |
| 147 | 783.03 |
| 148 | 786.16 |
| 149 | 789.30 |
| 150 | 792.44 |
| 151 | 795.58 |
| 152 | 798.72 |
| 153 | 801.87 |
| 154 | 805.02 |
| 155 | 808.17 |
| 156 | 811.33 |
| 157 | 814.48 |
| 158 | 817.64 |
| 159 | 820.80 |
| 160 | 823.97 |
| 161 | 827.14 |
| 162 | 830.31 |
| 163 | 833.48 |
| 164 | 836.65 |
| 165 | 839.83 |
| 166 | 843.01 |
| 167 | 846.19 |
| 168 | 849.38 |
| 169 | 852.56 |
| 170 | 855.75 |
| 171 | 858.94 |
| 172 | 862.14 |
| 173 | 865.34 |
| 174 | 868.53 |
| 175 | 871.74 |
| 176 | 874.94 |
| 177 | 878.15 |
| 178 | 881.36 |
| 179 | 884.57 |
| 180 | 887.78 |
| 181 | 891.00 |
| 182 | 894.21 |
| 183 | 897.43 |
| 184 | 900.66 |
| 185 | 903.88 |
| 186 | 907.11 |
| 187 | 910.34 |
| 188 | 913.57 |
| 189 | 916.81 |
| 190 | 920.04 |
| 191 | 923.28 |
| 192 | 926.53 |
| 193 | 929.77 |
| 194 | 933.02 |
| 195 | 936.26 |
| 196 | 939.51 |
| 197 | 942.77 |
| 198 | 946.02 |
| 199 | 949.28 |
| 200 | 952.54 |
| 201 | 955.80 |
| 202 | 959.07 |
| 203 | 962.33 |
| 204 | 965.60 |
| 205 | 968.87 |
| 206 | 972.14 |
| 207 | 975.42 |
| 208 | 978.70 |
| 209 | 981.98 |
| 210 | 985.26 |
| 211 | 988.54 |
| 212 | 991.83 |
| 213 | 995.12 |
| 214 | 998.41 |
| 215 | 1001.70 |
| 216 | 1004.99 |
| 217 | 1008.29 |
| 218 | 1011.59 |
| 219 | 1014.89 |
| 220 | 1018.19 |
| 221 | 1021.50 |
| 222 | 1024.81 |
| 223 | 1028.12 |
| 224 | 1031.43 |
| 225 | 1034.74 |
| 226 | 1038.06 |
| 227 | 1041.38 |
| 228 | 1044.70 |
| 229 | 1048.02 |
| 230 | 1051.34 |
| 231 | 1054.67 |
| 232 | 1057.99 |
| 233 | 1061.32 |
| 234 | 1064.66 |
| 235 | 1067.99 |
| 236 | 1071.33 |
| 237 | 1074.67 |
| 238 | 1078.01 |
| 239 | 1081.35 |
| 240 | 1084.69 |
| 241 | 1088.04 |
| 242 | 1091.39 |
| 243 | 1094.74 |
| 244 | 1098.09 |
| 245 | 1101.44 |
| 246 | 1104.80 |
| 247 | 1108.15 |
| 248 | 1111.51 |
| 249 | 1114.88 |
| 250 | 1118.24 |
| 251 | 1121.61 |
| 252 | 1124.97 |
Wavelength Characterization Procedure
To be added latter.