File name: Pandora243s1_Toronto-CNTower_20241117_L2Fit_fout2c3d20240624p1-8.txt File generation date: 20241119T083132.1Z Data description: Level 2 spectral fitting results file Data file version: fout2c3p1-8 Local principal investigator: Vitali Fioletov Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 243 Spectrometer number: 1 Processing software version used: BlickP v1.8.60 Instrument operation file used: Pandora243_OF_v3d20230125.txt Instrument calibration file used: Pandora243s1_CF_v3d20240624.txt Level 1 file used: Pandora243s1_Toronto-CNTower_20241117_L1_smca1c3d20240624p1-8.txt Full location name: CN Tower Observation Pod Roof, 290 Bremner Blvd, Toronto, ON M5V 3L9 Short location name: Toronto-CNTower Country of location: Canada Location latitude [deg]: 43.6426 Location longitude [deg]: -79.3871 Location altitude [m]: 330 Local noon date: 20241117 Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are dark map for dark correction (replaced by immediate dark method), latency correction, matrix method stray light correction (replaced by simple method) Data caveats: None First and last pixel inside fitting window: 197 339 Nominal wavelengths inside fitting window [nm]: 305.1162 305.2567 305.3973 305.5378 305.6783 305.8188 305.9592 306.0997 306.2401 306.3806 306.5210 306.6614 306.8018 306.9422 307.0826 307.2230 307.3634 307.5037 307.6441 307.7844 307.9247 308.0650 308.2053 308.3456 308.4859 308.6261 308.7664 308.9066 309.0469 309.1871 309.3273 309.4675 309.6077 309.7479 309.8880 310.0282 310.1683 310.3084 310.4486 310.5887 310.7288 310.8688 311.0089 311.1490 311.2890 311.4291 311.5691 311.7091 311.8491 311.9891 312.1291 312.2691 312.4090 312.5490 312.6889 312.8289 312.9688 313.1087 313.2486 313.3884 313.5283 313.6682 313.8080 313.9479 314.0877 314.2275 314.3673 314.5071 314.6469 314.7866 314.9264 315.0662 315.2059 315.3456 315.4853 315.6250 315.7647 315.9044 316.0441 316.1837 316.3234 316.4630 316.6026 316.7422 316.8818 317.0214 317.1610 317.3006 317.4401 317.5796 317.7192 317.8587 317.9982 318.1377 318.2772 318.4167 318.5561 318.6956 318.8350 318.9744 319.1139 319.2533 319.3927 319.5320 319.6714 319.8108 319.9501 320.0895 320.2288 320.3681 320.5074 320.6467 320.7860 320.9252 321.0645 321.2037 321.3430 321.4822 321.6214 321.7606 321.8998 322.0390 322.1781 322.3173 322.4564 322.5956 322.7347 322.8738 323.0129 323.1520 323.2910 323.4301 323.5691 323.7082 323.8472 323.9862 324.1252 324.2642 324.4032 324.5422 324.6811 324.8201 324.9590 --------------------------------------------------------------------------------------- Column 1: Two letter code of measurement routine Column 2: UT date and time for center-time of measurement, yyyymmddThhmmssZ (ISO 8601) Column 3: Fractional days since 1-Jan-2000 midnight for center-time of measurement Column 4: Routine count (1 for the first routine of the day, 2 for the second, etc.) Column 5: Repetition count (1 for the first set in the routine, 2 for the second, etc.) Column 6: Total duration of measurement set in seconds Column 7: Data processing type index Column 8: Solar zenith angle for center-time of measurement in degree Column 9: Solar azimuth for center-time of measurement in degree, 0=north, increases clockwise Column 10: Lunar zenith angle for center-time of measurement in degree Column 11: Lunar azimuth for center-time of measurement in degree, 0=north, increases clockwise Column 12: Pointing zenith angle in degree, absolute or relative (see next column), 999=tracker not used Column 13: Zenith pointing mode: zenith angle is... 0=absolute, 1=relative to sun, 2=relative to moon Column 14: Pointing azimuth in degree, increases clockwise, absolute (0=north) or relative (see next column), 999=tracker not used Column 15: Azimuth pointing mode: like zenith angle mode but also fixed scattering angles relative to sun (3) or moon (4) Column 16: Fitting result index: 0=no error or warning, 1, 2=warning, >2=error Column 17: Number of function evaluations used, 0=linear fitting or fitting not successful or no fitting done Column 18: rms of unweighted fitting residuals, -9=fitting not successful Column 19: Normalized rms of fitting residuals weighted with independent uncertainty, -9=fitting not successful or no uncertainty used Column 20: Expected rms based on independent uncertainty, -9=fitting not successful or no uncertainty given Column 21: Expected normalized weighted rms based on independent uncertainty, -9=fitting not successful or no uncertainty given Column 22: Ozone slant column amount [moles per square meter], -9e99=fitting not successful Column 23: Independent uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 24: Structured uncertainty of ozone slant column amount [moles per square meter], -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 25: Common uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -6=no common uncertainty input was given, -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 26: rms-based uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no rms-based uncertainty could be retrieved, -9=spectral fitting not successful Column 27: Ozone effective temperature [K] Column 28: Independent uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 29: Structured uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -9=spectral fitting not successful Column 30: Common uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no common uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -6=no common uncertainty input was given, -9=spectral fitting not successful Column 31: Effective ozone fitting wavelength [nm], -9=fitting not successful Column 32: Diffuse correction applied before fitting at effective fitting wavelength for ozone [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 33: Sulfur dioxide slant column amount [moles per square meter], -9e99=fitting not successful Column 34: Independent uncertainty of sulfur dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 35: Structured uncertainty of sulfur dioxide slant column amount [moles per square meter], -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 36: Common uncertainty of sulfur dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -6=no common uncertainty input was given, -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 37: rms-based uncertainty of sulfur dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no rms-based uncertainty could be retrieved, -9=spectral fitting not successful Column 38: Sulfur dioxide effective temperature [K] Column 39: Independent uncertainty of sulfur dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 40: Structured uncertainty of sulfur dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -9=spectral fitting not successful Column 41: Common uncertainty of sulfur dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no common uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -6=no common uncertainty input was given, -9=spectral fitting not successful Column 42: Effective sulfur dioxide fitting wavelength [nm], -9=fitting not successful Column 43: Diffuse correction applied before fitting at effective fitting wavelength for sulfur dioxide [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 44: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting Column 45: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting Column 46: Lower limit used for wavelength scaling [nm] Column 47: Upper limit used for wavelength scaling [nm] Column 48: Order of smoothing polynomial Column 49: Smoothing polynomial coefficient, order 0 Column 50: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 51: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 52: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 53: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 54: Smoothing polynomial coefficient, order 1 Column 55: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 56: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 57: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 58: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 59: Smoothing polynomial coefficient, order 2 Column 60: Independent uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 61: Structured uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 62: Common uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 63: rms-based uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 64: Smoothing polynomial coefficient, order 3 Column 65: Independent uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 66: Structured uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 67: Common uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 68: rms-based uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 69: Mean value of measured data inside fitting window [same units as measurements] Column 70: Wavelength change polynomial coefficient, order 0 Column 71: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 72: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 73: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 74: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 75: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination Column 76: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination Column 77: L2Fit data quality flag: 0=assured high quality, 1=assured medium quality, 2=assured low quality, 10=not-assured high quality, 11=not-assured medium quality, 12=not-assured low quality Column 78: Sum over 2^i using those i, for which the corresponding L2Fit data quality parameter exceeds the DQ1 limit, 0=L1 data quality above 0, 1=Spectral fitting was not successful, 2=Wavelength shift too large, 3=Normalized rms of fitting residuals weighted with independent uncertainty too large Column 79: Sum over 2^i using those i, for which the corresponding L2Fit data quality parameter exceeds the DQ2 limit (same parameters as for DQ1) Column 80: L1 data quality flag: 0=assured high quality, 1=assured medium quality, 2=assured low quality, 10=not-assured high quality, 11=not-assured medium quality, 12=not-assured low quality Column 81: Sum over 2^i using those i, for which the corresponding L1 data quality parameter exceeds the DQ1 limit, 0=Saturated data, 1=Too few dark counts measurements, 2=No temperature given or effective temperature too different from the reference temperature, 3=Dark count too high, 4=Unsuccessful dark background fitting, 5=The dark count differs significantly from the dark map for too many pixels, 6=Absolute value of estimated average residual stray light level too high, 7=Although attempted, no wavelength change could be retrieved, 8=Absolute value of retrieved wavelength shift too large, 9=Retrieved wavelength shift differs too much from the shift predicted by the effective temperature Column 82: Sum over 2^i using those i, for which the corresponding L1 data quality parameter exceeds the DQ2 limit (same parameters as for DQ1) Column 83: Atmospheric variability [%], 999=no atmospheric variability was determined Column 84: Wavelength effective temperature [°C], 999=no effective temperature given Column 85: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher) Column 86: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination Column 87: Retrieved total wavelength shift [nm], -9=no wavelength change fitting Column 88: Number of bright count cycles Column 89: Number of dark count cycles Column 90: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions Column 91: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions Column 92: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal Column 93: Integration time [ms] Column 94: Temperature at electronics board [°C], 999=no temperature signal Column 95: Spectrometer control temperature [°C], 999=no temperature signal Column 96: Auxiliary spectrometer temperature [°C], 999=no temperature signal Column 97: Temperature in head sensor [°C], 999=no temperature signal Column 98: Humidity in head sensor [%], -9=no humidity signal Column 99: Pressure in head sensor [hPa], -9=no pressure signal Columns 100-242: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 243-385: Normalized slant column residuals weighted with independent instrumental uncertainty for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting, 0=no independent instrumental uncertainty was given --------------------------------------------------------------------------------------- SS 20241117T170353.2Z 9087.711032 479 1 29.79 2 62.86 180.32 105.53 336.78 0.00 1 0.00 1 0 17 9.061e-03 5.289e-03 2.171e-03 9.592e-04 2.485906e-01 4.720428e-04 3.076740e-03 -6.000000e+00 5.033861e-03 222.48 -2.00 3.56 -2.00 316.51 0.00e+00 3.833524e-04 5.590334e-05 4.510780e-05 -6.000000e+00 2.213467e-04 276.05 -2.00 20.00 -2.00 315.92 0.00e+00 2.181 0.000 302.00 328.00 3 2.7880e+00 1.2200e-03 2.4343e-02 -6.0000e+00 1.2387e-02 9.1095e-03 1.3727e-03 1.2675e-02 -6.0000e+00 1.3530e-02 -1.6695e-03 8.0485e-04 6.3184e-03 -6.0000e+00 8.0589e-03 -2.1299e-03 3.8580e-04 1.8376e-03 -6.0000e+00 3.4437e-03 3.0700e-03 -1.0752e-04 2.6933e-05 2.1325e-05 -6.0000e+00 2.4213e-04 1.5491e-04 0.0000e+00 10 0 0 10 0 0 99.64 27.20 0.50 0.00015 -0.00065 58 58 1 5 0 513.470 35.50 20.00 27.20 14.42 3.7 876.20 -1985 -1467 -2935 -2817 -4480 -2083 -946 116 15 -176 -1649 -1201 -79 89 249 186 248 1445 717 1138 380 1471 778 966 365 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148 361 503 356 280 194 270 271 245 258 53 -184 -258 -276 266 750 684 529 874 765 979 620 -272 39 238 -132 -173 -49 -73 -241 117 -372 -547 -660 -482 SS 20241117T170902.0Z 9087.714606 482 1 29.77 2 62.88 181.69 105.86 337.85 0.00 1 0.00 1 0 25 8.895e-03 5.135e-03 4.525e-03 1.703e-03 2.497089e-01 8.372408e-04 3.070755e-03 -6.000000e+00 4.942035e-03 222.48 -2.00 3.56 -2.00 316.97 0.00e+00 6.436728e-04 1.111443e-04 5.792539e-05 -6.000000e+00 2.173044e-04 276.05 -2.00 20.00 -2.00 316.37 0.00e+00 2.182 0.000 302.00 328.00 3 3.7452e+00 2.1778e-03 2.4384e-02 -6.0000e+00 1.2161e-02 2.4125e-02 2.4560e-03 1.2757e-02 -6.0000e+00 1.3283e-02 -4.9752e-03 1.4656e-03 6.3474e-03 -6.0000e+00 7.9118e-03 -2.0701e-03 7.1776e-04 1.8966e-03 -6.0000e+00 3.3809e-03 1.1674e-03 -4.6965e-05 4.8319e-05 2.1161e-05 -6.0000e+00 2.3771e-04 -3.2911e-05 0.0000e+00 10 0 0 10 0 0 99.87 27.17 0.48 -0.00003 -0.00039 25 25 1 5 0 1190.560 35.50 20.00 27.17 14.51 3.7 877.30 -510 -1895 -1252 -3524 -3756 -2731 -1220 178 816 -1480 -1603 -2343 -863 -15 157 -61 -390 844 1389 1049 665 636 1460 620 197 -642 544 -18 -347 -873 2150 1131 1123 -876 -1716 -1112 -532 346 -511 -51 -611 -481 -800 -393 -596 63 -767 -1115 -828 556 856 475 629 690 709 633 314 333 660 566 774 1266 1532 762 -121 6 -1009 265 692 226 198 -35 306 175 -138 -464 -712 -509 -644 -263 -777 -1252 -1718 -1411 -1296 -102 194 132 653 747 76 17 481 386 106 131 379 654 489 -376 -684 -622 -43 -331 -184 -546 -957 -518 -8 393 208 143 302 73 278 181 176 39 56 -274 2 -226 12 643 370 30 430 516 758 355 -386 38 -13 13 -120 -3 76 -150 209 -20 -560 -185 -244 -72 -287 -187 -485 -465 -333 -160 26 129 -244 -260 -406 -168 -3 39 -15 -99 221 374 293 187 177 419 189 63 -214 175 -6 -108 -277 644 369 396 -313 -571 -373 -198 151 -269 -28 -363 -296 -507 -249 -377 39 -472 -672 -488 329 538 319 445 513 540 453 228 240 503 432 568 999 1309 692 -108 5 -777 199 562 209 184 -34 291 159 -125 -377 -571 -393 -491 -226 -751 -1242 -1812 -1556 -1434 -120 238 166 814 888 90 18 473 373 110 150 450 856 630 -506 -862 -722 -51 -383 -231 -723 -1249 -705 -11 594 312 215 462 104 386 237 231 53 78 -408 3 -337 17 886 516 39 544 661 1038 488 -561 56 -20 20 -189 -4 129 -261 363 -34 -921 -292 -377 SS 20241117T173634.2Z 9087.733729 495 1 30.20 2 63.35 188.96 107.40 343.67 0.00 1 0.00 1 0 17 2.676e-02 7.336e-03 1.865e-02 5.181e-03 2.563397e-01 2.525929e-03 3.142842e-03 -6.000000e+00 1.486640e-02 222.48 -2.00 3.56 -2.00 317.74 0.00e+00 7.161041e-04 4.017066e-04 8.886906e-05 -6.000000e+00 6.536448e-04 276.05 -2.00 20.00 -2.00 317.10 0.00e+00 2.217 0.000 302.00 328.00 3 5.2549e+00 6.6725e-03 2.4866e-02 -6.0000e+00 3.6582e-02 4.6356e-02 7.5634e-03 1.3111e-02 -6.0000e+00 3.9956e-02 -4.8085e-03 4.6853e-03 6.5469e-03 -6.0000e+00 2.3799e-02 -3.8035e-03 2.3676e-03 1.9664e-03 -6.0000e+00 1.0171e-02 2.4420e-04 -6.2797e-05 1.5024e-04 2.2002e-05 -6.0000e+00 7.1502e-04 -5.1681e-04 0.0000e+00 11 8 0 10 0 0 99.77 27.06 0.66 -0.00052 -0.00099 11 11 1 5 0 2745.380 35.50 20.00 27.06 14.63 3.7 877.77 -599 3661 -14406 -4775 3603 -12778 10962 -1419 7711 -10627 4834 -5031 4010 2598 -4153 -3344 2588 -1379 3674 1195 -1653 661 1871 -5003 449 804 3624 644 1425 1683 1183 1541 1751 713 -1608 421 148 2553 -1295 290 -1651 893 194 -1425 -180 -1287 -119 -2075 -371 489 -1182 1953 2068 1505 190 80 479 -554 698 322 -434 650 538 1985 1630 168 -1013 -680 -526 513 148 234 1489 843 -1214 -597 -1448 -1248 -380 -886 -393 -1227 -1625 -1110 -1096 -19 -35 912 335 564 -341 -865 -80 290 105 -184 -239 676 1189 -166 -1274 -52 325 110 -134 -494 -1239 -16 274 391 489 705 458 -265 -280 -465 -7 -630 -462 296 1158 -511 -118 898 489 -443 171 -63 335 104 -307 -589 -25 -525 481 388 -356 182 775 -298 -502 -16 -198 -59 370 -1732 -470 293 -1220 897 -148 803 -1358 520 -636 529 399 -774 -667 503 -291 763 263 -375 145 422 -1277 114 208 894 152 313 374 284 398 487 199 -426 111 44 864 -547 138 -860 471 105 -790 -98 -709 -63 -1098 -189 252 -660 1128 1258 967 127 54 329 -380 463 214 -304 486 398 1528 1226 118 -738 -487 -409 406 128 208 1291 703 -952 -458 -1019 -845 -273 -724 -325 -1126 -1586 -1129 -1198 -22 -43 1127 414 664 -373 -866 -81 285 101 -196 -283 877 1607 -221 -1600 -60 351 125 -166 -645 -1705 -23 409 623 819 1184 738 -398 -386 -606 -9 -865 -680 460 1816 -802 -179 1295 671 -585 214 -79 453 150 -470 -928 -41 -873 842 654 -619 323 1372 -517 -918 -28 -341