File name: Pandora170s1_Downsview_20220119_L2Fit_fout2c1d20211219p1-8.txt File generation date: 20260323T102259.7Z Data description: Level 2 spectral fitting results file Data file version: fout2c1p1-8 Local principal investigator: Vitali Fioletov Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 170 Spectrometer number: 1 Processing software version used: BlickP v1.8.88 Instrument operation file used: Pandora170_OF_v5d20200302.txt Instrument calibration file used: Pandora170s1_CF_v1d20211219.txt Level 1 file used: Pandora170s1_Downsview_20220119_L1_smca1c1d20211219p1-8.txt.bz2 Full location name: Environment Canada HQ - Downsview Short location name: Downsview Country of location: Canada Location latitude [deg]: 43.7810 Location longitude [deg]: -79.4680 Location altitude [m]: 187 Local noon date: 20220119 Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are latency correction, matrix method stray light correction (replaced by simple method) Data caveats: None First and last pixel inside fitting window: 215 356 Nominal wavelengths inside fitting window [nm]: 305.1142 305.2554 305.3965 305.5377 305.6788 305.8199 305.9610 306.1021 306.2432 306.3843 306.5253 306.6664 306.8074 306.9485 307.0895 307.2305 307.3715 307.5124 307.6534 307.7944 307.9353 308.0763 308.2172 308.3581 308.4990 308.6399 308.7808 308.9216 309.0625 309.2033 309.3442 309.4850 309.6258 309.7666 309.9074 310.0481 310.1889 310.3297 310.4704 310.6111 310.7518 310.8925 311.0332 311.1739 311.3146 311.4552 311.5959 311.7365 311.8772 312.0178 312.1584 312.2990 312.4395 312.5801 312.7207 312.8612 313.0017 313.1422 313.2828 313.4232 313.5637 313.7042 313.8447 313.9851 314.1256 314.2660 314.4064 314.5468 314.6872 314.8276 314.9679 315.1083 315.2486 315.3890 315.5293 315.6696 315.8099 315.9502 316.0905 316.2307 316.3710 316.5112 316.6515 316.7917 316.9319 317.0721 317.2123 317.3524 317.4926 317.6327 317.7729 317.9130 318.0531 318.1932 318.3333 318.4734 318.6134 318.7535 318.8935 319.0336 319.1736 319.3136 319.4536 319.5936 319.7335 319.8735 320.0134 320.1534 320.2933 320.4332 320.5731 320.7130 320.8529 320.9927 321.1326 321.2724 321.4123 321.5521 321.6919 321.8317 321.9715 322.1112 322.2510 322.3907 322.5305 322.6702 322.8099 322.9496 323.0893 323.2290 323.3687 323.5083 323.6479 323.7876 323.9272 324.0668 324.2064 324.3460 324.4856 324.6251 324.7647 324.9042 --------------------------------------------------------------------------------------- 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 20220119T174301.8Z 8054.738215 443 1 49.53 2 64.09 183.74 115.19 341.29 0.00 1 0.00 1 0 17 1.829e-02 8.271e-03 2.676e-03 5.019e-04 3.568170e-01 2.514579e-04 4.319190e-03 -6.000000e+00 1.040195e-02 223.57 -2.00 3.57 -2.00 318.10 0.00e+00 1.067686e-03 4.449643e-05 2.224806e-04 -6.000000e+00 4.447136e-04 271.77 -2.00 20.00 -2.00 317.59 0.00e+00 2.275 0.000 302.00 328.00 3 1.1396e+00 6.6701e-04 2.8718e-02 -6.0000e+00 2.5696e-02 6.9010e-03 7.5512e-04 1.8212e-02 -6.0000e+00 2.7984e-02 -1.0477e-03 5.0520e-04 9.2136e-03 -6.0000e+00 1.6611e-02 -6.8134e-03 2.6611e-04 2.8845e-03 -6.0000e+00 7.1144e-03 1.1718e-02 3.4249e-04 1.4481e-05 3.0002e-05 -6.0000e+00 5.0287e-04 -4.5984e-03 -7.0459e-05 11 8 0 10 0 0 99.99 22.56 0.18 -0.00460 -0.00202 744 155 1 5 0 66.560 26.51 19.99 22.56 10.69 21.8 985.07 2032 2753 2768 -8686 -1 -4405 -4415 -2071 -1498 -8529 -3855 -3541 -2281 1221 1917 731 700 2813 1004 2166 -120 -456 780 -15 957 -364 -1551 -2247 -880 -279 378 1248 1967 -3565 -4941 -3999 -4419 -2292 -1019 -1158 -797 -199 -156 -785 697 2 -337 -861 -1000 410 1336 293 1710 975 857 1783 931 286 -186 77 915 1618 3003 2117 -225 -246 -1274 -742 1534 469 845 908 1105 967 -151 -663 -2231 -1923 -1039 -1424 -1335 -1737 -2601 -1143 -531 11 778 986 1004 867 912 -616 -787 -217 -291 -94 1073 1164 50 -5 -1260 -1522 -407 -103 -1666 -915 -1089 -687 508 772 823 428 202 -261 -472 -120 -25 421 466 -79 121 724 613 480 571 -822 587 777 82 315 -419 -496 -269 281 -35 -226 663 334 -107 -1 -537 -801 111 163 165 -532 0 -252 -261 -136 -107 -677 -296 -298 -224 137 234 99 101 420 160 354 -20 -77 136 -3 189 -75 -316 -434 -162 -54 80 292 495 -887 -1249 -1030 -1225 -747 -372 -483 -358 -93 -75 -360 333 1 -161 -411 -481 203 675 161 989 597 516 1090 579 176 -113 47 586 1130 2159 1610 -170 -181 -911 -544 1174 389 745 814 961 829 -119 -494 -1580 -1380 -825 -1239 -1247 -1706 -2724 -1199 -593 13 914 1169 1166 987 993 -625 -796 -216 -321 -111 1357 1545 69 -6 -1590 -1845 -482 -125 -2113 -1208 -1513 -967 734 1195 1284 664 308 -385 -674 -166 -36 611 696 -123 186 1110 908 680 800 -1110 801 1082 121 479 -670 -815 -443 485 -62 -402 1195 610 -193 -2 -921 -1377 SS 20220119T175103.8Z 8054.743794 449 1 33.79 2 64.21 185.83 115.64 343.24 0.00 1 0.00 1 0 17 5.697e-01 4.530e-02 1.682e-01 7.362e-03 3.577833e-01 3.804579e-03 4.558292e-03 -6.000000e+00 3.246469e-01 223.57 -2.00 3.57 -2.00 318.87 0.00e+00 3.881007e-03 8.419292e-04 7.959525e-04 -6.000000e+00 1.527035e-02 271.77 -2.00 20.00 -2.00 318.36 0.00e+00 2.285 0.000 302.00 328.00 3 5.4570e+00 1.0240e-02 2.9413e-02 -6.0000e+00 8.0094e-01 7.4852e-02 1.1831e-02 1.9862e-02 -6.0000e+00 8.7525e-01 -3.4932e-02 9.1410e-03 9.6148e-03 -6.0000e+00 5.2023e-01 1.1754e-02 4.8908e-03 3.1139e-03 -6.0000e+00 2.2457e-01 1.4608e-04 -7.9876e-03 2.2067e-04 3.4083e-05 -6.0000e+00 1.5990e-02 6.5162e-03 -1.3621e-03 12 9 9 12 33 33 100.00 22.57 2.96 0.00652 -0.05351 11 4 1 5 0 2801.160 26.51 20.00 22.57 10.90 21.6 982.49 145012 900000 900000 312401 900000 156043 -86136 2239 151065 -79796 900000 39713 900000 900000 900000 76100 55045 129352 37895 33286 -11019 102753 -22615 4481 82558 -35478 6072 44193 365378 183527 5596 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