File name: Pandora104s1_Downsview_20240314_L2Fit_fout2c18d20230421p1-8.txt File generation date: 20240426T145729.1Z Data description: Level 2 spectral fitting results file Data file version: fout2c18p1-8 Local principal investigator: Vitali Fioletov Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 104 Spectrometer number: 1 Processing software version used: BlickP v1.8.59 Instrument operation file used: Pandora104_OF_v10d20171009.txt Instrument calibration file used: Pandora104s1_CF_v18d20230421.txt Level 1 file used: Pandora104s1_Downsview_20240314_L1_smca1c18d20230421p1-8.txt 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: 20240314 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: based on session 14 for VP 20230421 First and last pixel inside fitting window: 206 348 Nominal wavelengths inside fitting window [nm]: 305.0496 305.1902 305.3308 305.4713 305.6119 305.7524 305.8929 306.0334 306.1739 306.3144 306.4549 306.5954 306.7358 306.8763 307.0167 307.1571 307.2976 307.4380 307.5784 307.7187 307.8591 307.9995 308.1398 308.2801 308.4205 308.5608 308.7011 308.8414 308.9817 309.1219 309.2622 309.4024 309.5427 309.6829 309.8231 309.9633 310.1035 310.2437 310.3838 310.5240 310.6641 310.8043 310.9444 311.0845 311.2246 311.3647 311.5048 311.6448 311.7849 311.9249 312.0650 312.2050 312.3450 312.4850 312.6250 312.7650 312.9049 313.0449 313.1848 313.3248 313.4647 313.6046 313.7445 313.8844 314.0243 314.1641 314.3040 314.4438 314.5836 314.7235 314.8633 315.0031 315.1428 315.2826 315.4224 315.5621 315.7019 315.8416 315.9813 316.1210 316.2607 316.4004 316.5401 316.6797 316.8194 316.9590 317.0986 317.2382 317.3778 317.5174 317.6570 317.7966 317.9361 318.0757 318.2152 318.3547 318.4943 318.6338 318.7732 318.9127 319.0522 319.1916 319.3311 319.4705 319.6099 319.7493 319.8887 320.0281 320.1675 320.3068 320.4462 320.5855 320.7249 320.8642 321.0035 321.1428 321.2820 321.4213 321.5606 321.6998 321.8391 321.9783 322.1175 322.2567 322.3959 322.5351 322.6742 322.8134 322.9525 323.0916 323.2308 323.3699 323.5090 323.6480 323.7871 323.9262 324.0652 324.2043 324.3433 324.4823 324.6213 324.7603 324.8993 --------------------------------------------------------------------------------------- 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 Columns 97-239: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 240-382: 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 20240314T143259.2Z 8839.606240 129 1 50.14 2 60.19 127.58 81.73 69.01 0.00 1 0.00 1 0 17 2.092e-02 6.763e-03 1.090e-02 1.979e-03 3.195292e-01 1.018625e-03 3.870162e-03 -6.000000e+00 1.220167e-02 225.76 -2.00 3.57 -2.00 318.40 0.00e+00 1.653599e-03 1.937018e-04 4.251029e-04 -6.000000e+00 5.237523e-04 273.88 -2.00 20.00 -2.00 317.83 0.00e+00 2.003 0.000 302.00 328.00 3 4.8216e+00 2.7296e-03 2.5674e-02 -6.0000e+00 3.0272e-02 5.1860e-02 3.0966e-03 1.6475e-02 -6.0000e+00 3.2883e-02 -1.8027e-02 2.0660e-03 8.4083e-03 -6.0000e+00 1.9519e-02 -3.0704e-03 1.0669e-03 2.7883e-03 -6.0000e+00 8.2556e-03 3.9127e-04 -5.6174e-05 5.8724e-05 2.8203e-05 -6.0000e+00 5.7431e-04 5.3208e-03 0.0000e+00 11 9 0 11 8 0 99.79 22.90 0.27 0.00532 0.00490 27 6 1 5 0 1856.870 22.90 15.00 18.60 -9 221 -5078 -6484 -4660 -6996 -5736 -7129 744 -7508 -10534 -7167 -3973 38 -453 192 2421 2177 2940 1920 2583 402 918 322 -168 -1902 -1574 -1754 -1532 -2208 -574 -1334 677 -298 -3679 -1430 -1526 -443 -501 -1454 -876 -1488 -199 -134 231 231 -517 257 48 -319 1493 1057 1162 1470 1355 603 1004 379 -84 22 682 2240 1562 1672 651 -592 44 -211 1134 1675 237 670 -59 236 -71 -826 -1524 -1436 -992 -925 -1983 -1856 -2207 -1834 -414 -122 355 298 623 762 378 715 -411 -60 387 -30 64 379 305 -764 -584 -723 -777 247 -371 -1368 -1163 -211 -54 788 719 833 117 402 -75 485 607 447 219 275 -284 192 212 627 113 470 -329 171 313 -360 -737 -834 -679 8 -201 401 -120 660 187 174 -139 -104 -451 -1 13 -333 -413 -261 -382 -322 -458 49 -569 -821 -557 -344 4 -52 24 318 300 423 289 400 63 144 53 -30 -356 -294 -312 -260 -371 -101 -262 142 -67 -804 -297 -341 -114 -154 -528 -348 -627 -86 -59 101 102 -226 110 20 -138 664 513 596 795 758 347 590 224 -49 13 398 1377 1053 1210 490 -425 29 -136 757 1268 199 585 -52 200 -57 -603 -1014 -906 -642 -675 -1648 -1709 -2207 -1908 -452 -131 399 347 723 862 439 762 -406 -57 383 -33 77 462 405 -1030 -745 -923 -924 293 -478 -1734 -1532 -290 -78 1204 1166 1394 192 625 -108 653 800 611 316 424 -451 302 322 922 159 636 -461 234 455 -526 -1149 -1350 -1115 13 -360 759 -216 1203 347 319 -266 -191 -802 SS 20240314T143845.0Z 8839.610244 132 1 6.10 2 59.37 128.95 80.77 69.90 0.00 1 0.00 1 0 17 3.536e-02 1.113e-02 3.693e-02 9.060e-03 3.098159e-01 4.652479e-03 3.726513e-03 -6.000000e+00 2.062723e-02 225.76 -2.00 3.57 -2.00 317.71 0.00e+00 2.374423e-03 7.357370e-04 3.158796e-04 -6.000000e+00 8.854028e-04 273.88 -2.00 20.00 -2.00 317.15 0.00e+00 1.955 0.000 302.00 328.00 3 5.5644e+00 1.2283e-02 2.4899e-02 -6.0000e+00 5.1176e-02 5.7786e-02 1.3822e-02 1.5875e-02 -6.0000e+00 5.5589e-02 -1.7046e-02 8.6707e-03 8.0179e-03 -6.0000e+00 3.2998e-02 -1.5330e-03 4.3891e-03 2.8744e-03 -6.0000e+00 1.3956e-02 1.9634e-04 -4.4787e-04 2.6488e-04 2.7501e-05 -6.0000e+00 9.7091e-04 5.2627e-03 0.0000e+00 12 9 9 12 1 1 999.00 22.90 0.61 0.00526 0.00190 1 3 1 5 0 3044.240 22.90 15.00 18.61 -508 1188 -6290 -3237 -23172 986 -915 16568 -10436 -101 7291 8463 -9020 -2709 -3585 675 3916 -79 5027 5431 8225 1177 -7218 739 487 -1533 -7137 -5254 -1222 -1078 3117 3546 2290 -1344 -689 -2017 -2459 -3973 536 482 -1038 -2736 -871 1492 -569 1234 -1509 1831 -2578 4318 2302 1737 2466 1191 264 2396 -1466 957 -104 1335 2 1535 1900 1033 395 -469 -2674 -1115 702 -209 2008 -229 1327 536 1723 -138 -1637 -1353 -915 -334 -3423 -2684 -1592 -2765 -1532 1070 97 152 1128 1179 518 507 -274 133 -62 1617 72 -454 6 -1227 -1665 -566 -710 823 -955 -959 -1119 -539 -134 -339 1888 1181 597 476 -69 408 1749 802 678 598 290 288 811 -163 -870 371 -904 -165 321 8 -846 -1090 -1366 74 -58 68 -151 596 636 310 -811 485 -401 -40 100 -591 -284 -2218 72 -70 1203 -1080 -10 671 792 -1134 -374 -576 116 690 -15 961 1071 1636 247 -1640 164 114 -378 -1852 -1291 -278 -243 715 889 627 -402 -194 -561 -730 -1364 207 212 -501 -1401 -455 775 -301 649 -807 943 -1368 2181 1229 995 1474 751 172 1563 -1006 646 -70 881 2 1087 1432 828 325 -373 -2044 -825 530 -175 1768 -212 1219 484 1479 -111 -1245 -987 -680 -270 -3101 -2608 -1628 -2937 -1686 1214 116 185 1369 1409 595 551 -281 133 -64 1765 86 -577 9 -1666 -2193 -700 -835 966 -1195 -1252 -1501 -746 -190 -505 2881 1852 926 715 -98 558 2341 1106 967 895 442 438 1205 -239 -1243 514 -1219 -218 440 12 -1287 -1697 -2155 118 -96 118 -264 1054 1134 552 -1417 820 -667