File name: Pandora208s1_Windsor-West_20250304_L2Fit_fout2c4d20220407p1-8.txt File generation date: 20250305T055013.5Z Data description: Level 2 spectral fitting results file Data file version: fout2c4p1-8 Local principal investigator: Vitali Fioletov Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 208 Spectrometer number: 1 Processing software version used: BlickP v1.8.74 Instrument operation file used: Pandora208_OF_v4d20211014.txt Instrument calibration file used: Pandora208s1_CF_v4d20220407.txt Level 1 file used: Pandora208s1_Windsor-West_20250304_L1_smca1c4d20220407p1-8.txt Full location name: Ontario Ministry of the Environment, Windsor West Short location name: Windsor-West Country of location: Canada Location latitude [deg]: 42.2929 Location longitude [deg]: -83.0731 Location altitude [m]: 180 Local noon date: 20250304 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: 206 347 Nominal wavelengths inside fitting window [nm]: 305.0986 305.2399 305.3812 305.5224 305.6637 305.8050 305.9462 306.0874 306.2286 306.3698 306.5110 306.6522 306.7934 306.9345 307.0757 307.2168 307.3579 307.4990 307.6401 307.7812 307.9223 308.0633 308.2044 308.3454 308.4864 308.6275 308.7685 308.9095 309.0504 309.1914 309.3324 309.4733 309.6142 309.7552 309.8961 310.0370 310.1779 310.3187 310.4596 310.6004 310.7413 310.8821 311.0229 311.1637 311.3045 311.4453 311.5861 311.7268 311.8676 312.0083 312.1490 312.2897 312.4304 312.5711 312.7118 312.8525 312.9931 313.1338 313.2744 313.4150 313.5556 313.6962 313.8368 313.9773 314.1179 314.2584 314.3990 314.5395 314.6800 314.8205 314.9610 315.1015 315.2419 315.3824 315.5228 315.6632 315.8037 315.9441 316.0845 316.2248 316.3652 316.5056 316.6459 316.7862 316.9265 317.0669 317.2072 317.3474 317.4877 317.6280 317.7682 317.9085 318.0487 318.1889 318.3291 318.4693 318.6095 318.7496 318.8898 319.0299 319.1701 319.3102 319.4503 319.5904 319.7305 319.8705 320.0106 320.1506 320.2907 320.4307 320.5707 320.7107 320.8507 320.9907 321.1306 321.2706 321.4105 321.5504 321.6903 321.8302 321.9701 322.1100 322.2499 322.3897 322.5296 322.6694 322.8092 322.9490 323.0888 323.2286 323.3684 323.5081 323.6479 323.7876 323.9273 324.0670 324.2067 324.3464 324.4861 324.6258 324.7654 324.9051 --------------------------------------------------------------------------------------- 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 100-241: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 242-383: 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 20250304T163914.9Z 9194.693922 179 1 33.18 2 50.64 159.02 66.07 83.30 0.00 1 0.00 1 0 17 1.634e-02 9.596e-03 1.025e-02 3.707e-03 2.227124e-01 1.879620e-03 2.730504e-03 -6.000000e+00 9.432133e-03 225.47 -2.00 3.53 -2.00 317.06 0.00e+00 1.113886e-03 2.481582e-04 5.746468e-05 -6.000000e+00 4.049612e-04 274.28 -2.00 20.00 -2.00 316.49 0.00e+00 1.573 0.000 302.00 328.00 3 6.0670e+00 4.9193e-03 1.9182e-02 -6.0000e+00 2.3373e-02 3.2522e-02 5.5153e-03 1.1490e-02 -6.0000e+00 2.5406e-02 7.7188e-03 3.2959e-03 5.7085e-03 -6.0000e+00 1.5083e-02 -6.5674e-03 1.6079e-03 1.8319e-03 -6.0000e+00 6.4237e-03 2.0106e-04 1.5082e-04 1.1089e-04 2.0719e-05 -6.0000e+00 4.6063e-04 -4.0685e-03 -1.4887e-04 12 9 9 12 1 1 97.96 19.45 0.25 -0.00407 -0.00294 11 5 1 5 0 2727.750 22.80 14.99 19.45 11.55 20.2 1003.86 -1233 1404 -1026 -4220 251 1854 2709 -1430 -1713 243 -3153 -3214 -100 -192 -496 2297 -2857 588 709 3295 -573 176 -896 -209 415 364 -95 393 -2484 -1343 990 -1005 -996 -1992 -4014 -3381 -2879 -310 -2397 -1003 -2215 -51 -2577 12122 592 -1392 435 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1089 929 566 540 665 828 603 585 -182 -160 189 -515 882 243 975 695 -1106 -371 -1378 -1605 SS 20250304T173539.1Z 9194.733091 210 1 46.37 2 48.47 177.26 55.84 92.04 0.00 1 0.00 1 0 17 1.610e-02 6.748e-03 9.875e-03 3.572e-03 2.169049e-01 1.812332e-03 2.649871e-03 -6.000000e+00 9.292680e-03 225.47 -2.00 3.53 -2.00 317.13 0.00e+00 2.977294e-04 2.426444e-04 1.008144e-04 -6.000000e+00 3.989545e-04 274.29 -2.00 20.00 -2.00 316.55 0.00e+00 1.506 0.000 302.00 328.00 3 6.1778e+00 4.7455e-03 1.8454e-02 -6.0000e+00 2.3027e-02 3.0510e-02 5.3248e-03 1.1100e-02 -6.0000e+00 2.5030e-02 1.0041e-02 3.1914e-03 5.5304e-03 -6.0000e+00 1.4860e-02 -1.1018e-02 1.5567e-03 1.5975e-03 -6.0000e+00 6.3289e-03 1.9498e-04 -6.6807e-05 1.0731e-04 1.9057e-05 -6.0000e+00 4.5378e-04 -3.8550e-03 -1.2652e-04 11 8 0 10 0 0 99.54 19.31 0.30 -0.00385 -0.00436 19 5 1 5 0 2440.550 22.71 15.01 19.31 12.36 20.3 1011.79 -4477 -4860 1470 -3308 -4631 -5147 1855 -3877 -2347 -1068 -234 -3786 -2773 -694 638 -969 -14 10377 -238 1354 1582 803 -704 -1923 1955 -388 766 565 1324 -709 724 705 210 -2127 -2068 -3052 -785 -883 -490 -1126 660 -32 -86 -871 -454 -643 -91 -1070 1194 310 398 1258 856 423 300 689 -560 1556 486 770 1423 1269 1668 545 -203 -524 434 494 -84 433 730 391 432 449 -1078 248 -2277 -323 -1102 -992 -1764 -1627 -1058 -1244 -584 -114 361 252 825 533 615 -732 -368 -440 -442 151 147 524 -452 132 -597 -632 -94 -788 -286 -1028 -358 -572 1051 350 892 111 -271 -602 190 -15 36 450 126 -24 -87 352 518 525 534 -118 569 140 508 22 -54 -387 437 -299 319 322 234 318 -283 -438 -661 -665 -607 -704 199 -427 -575 -631 228 -565 -368 -169 -36 -635 -515 -143 145 -240 -4 2443 -64 371 434 221 -203 -590 602 -125 238 163 357 -195 208 216 69 -702 -640 -973 -274 -363 -238 -624 384 -19 -53 -543 -280 -393 -54 -619 662 176 240 796 572 296 214 499 -413 1109 344 550 1059 1020 1431 487 -174 -412 318 364 -68 391 702 386 418 413 -919 186 -1615 -221 -824 -831 -1652 -1649 -1120 -1395 -663 -137 449 320 1022 621 693 -759 -355 -427 -463 174 178 681 -601 166 -743 -733 -107 -974 -376 -1354 -490 -818 1559 552 1434 177 -404 -828 253 -19 48 630 181 -36 -130 515 771 741 717 -152 707 181 701 32 -82 -596 685 -471 527 552 411 565 -499 -749 -1095 -1070 SS 20250304T174106.2Z 9194.736877 213 1 48.52 2 48.44 179.07 54.85 92.94 0.00 1 0.00 1 0 17 1.293e-02 7.676e-03 1.030e-02 3.763e-03 2.188389e-01 1.909364e-03 2.669463e-03 -6.000000e+00 7.461531e-03 225.47 -2.00 3.53 -2.00 317.19 0.00e+00 4.339023e-04 2.572895e-04 5.989985e-05 -6.000000e+00 3.203858e-04 274.29 -2.00 20.00 -2.00 316.60 0.00e+00 1.505 0.000 302.00 328.00 3 6.2974e+00 4.9937e-03 1.8502e-02 -6.0000e+00 1.8490e-02 4.2200e-02 5.5986e-03 1.1187e-02 -6.0000e+00 2.0099e-02 -1.6257e-03 3.3513e-03 5.5671e-03 -6.0000e+00 1.1933e-02 -3.5623e-03 1.6355e-03 1.6319e-03 -6.0000e+00 5.0812e-03 1.7214e-04 6.0264e-05 1.1332e-04 1.9235e-05 -6.0000e+00 3.6445e-04 -3.6522e-03 -1.6504e-04 11 9 0 11 8 0 99.96 19.31 0.44 -0.00365 -0.00320 18 5 1 5 0 2695.370 22.71 15.00 19.31 12.48 20.4 1013.05 -1241 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