File name: Pandora243s1_Toronto-CNTower_20240309_L2Fit_fwvt1c5d20240208p1-8.txt File generation date: 20241016T103835.4Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c5p1-8 Local principal investigator: 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_v2d20230125.txt Instrument calibration file used: Pandora243s1_CF_v5d20240208.txt Level 1 file used: Pandora243s1_Toronto-CNTower_20240309_L1_smca1c5d20240208p1-8.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: 20240309 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: 1621 1771 Nominal wavelengths inside fitting window [nm]: 492.0474 492.1680 492.2887 492.4092 492.5298 492.6504 492.7709 492.8914 493.0119 493.1324 493.2529 493.3734 493.4938 493.6142 493.7346 493.8550 493.9754 494.0958 494.2161 494.3364 494.4567 494.5770 494.6973 494.8175 494.9378 495.0580 495.1782 495.2984 495.4186 495.5387 495.6589 495.7790 495.8991 496.0192 496.1392 496.2593 496.3793 496.4993 496.6193 496.7393 496.8593 496.9792 497.0992 497.2191 497.3390 497.4589 497.5787 497.6986 497.8184 497.9382 498.0580 498.1778 498.2976 498.4173 498.5371 498.6568 498.7765 498.8962 499.0158 499.1355 499.2551 499.3747 499.4943 499.6139 499.7334 499.8530 499.9725 500.0920 500.2115 500.3310 500.4504 500.5699 500.6893 500.8087 500.9281 501.0475 501.1668 501.2862 501.4055 501.5248 501.6441 501.7634 501.8826 502.0019 502.1211 502.2403 502.3595 502.4786 502.5978 502.7169 502.8360 502.9551 503.0742 503.1933 503.3123 503.4314 503.5504 503.6694 503.7884 503.9073 504.0263 504.1452 504.2641 504.3830 504.5019 504.6207 504.7396 504.8584 504.9772 505.0960 505.2148 505.3335 505.4523 505.5710 505.6897 505.8084 505.9271 506.0457 506.1644 506.2830 506.4016 506.5202 506.6387 506.7573 506.8758 506.9943 507.1128 507.2313 507.3498 507.4682 507.5867 507.7051 507.8235 507.9419 508.0602 508.1786 508.2969 508.4152 508.5335 508.6518 508.7700 508.8883 509.0065 509.1247 509.2429 509.3611 509.4792 509.5973 509.7155 509.8336 509.9517 --------------------------------------------------------------------------------------- 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: Water vapor slant column amount [moles per square meter], -9e99=fitting not successful Column 23: Independent uncertainty of water vapor 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 water vapor 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 water vapor 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 water vapor 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: Water vapor effective temperature [K] Column 28: Independent uncertainty of water vapor 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 water vapor 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 water vapor 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 water vapor fitting wavelength [nm], -9=fitting not successful Column 32: Diffuse correction applied before fitting at effective fitting wavelength for water vapor [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 33: Nitrogen dioxide slant column amount [moles per square meter], -9e99=fitting not successful Column 34: Independent uncertainty of nitrogen 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 nitrogen 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 nitrogen 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 nitrogen 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: Nitrogen dioxide effective temperature [K] Column 39: Independent uncertainty of nitrogen 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 nitrogen 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 nitrogen 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 nitrogen dioxide fitting wavelength [nm], -9=fitting not successful Column 43: Diffuse correction applied before fitting at effective fitting wavelength for nitrogen dioxide [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 44: Ozone slant column amount [moles per square meter], -9e99=fitting not successful Column 45: 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 46: 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 47: 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 48: 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 49: Ozone effective temperature [K] Column 50: 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 51: 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 52: 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 53: Effective ozone fitting wavelength [nm], -9=fitting not successful Column 54: 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 55: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting Column 56: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting Column 57: Lower limit used for wavelength scaling [nm] Column 58: Upper limit used for wavelength scaling [nm] Column 59: Order of smoothing polynomial Column 60: Smoothing polynomial coefficient, order 0 Column 61: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 62: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 63: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 64: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 65: Smoothing polynomial coefficient, order 1 Column 66: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 67: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 68: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 69: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 70: Mean value of measured data inside fitting window [same units as measurements] Column 71: Wavelength change polynomial coefficient, order 0 Column 72: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 73: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 74: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 75: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 76: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination Column 77: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination Column 78: 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 79: 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 80: 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 81: 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 82: 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 83: 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 84: Atmospheric variability [%], 999=no atmospheric variability was determined Column 85: Wavelength effective temperature [°C], 999=no effective temperature given Column 86: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher) Column 87: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination Column 88: Retrieved total wavelength shift [nm], -9=no wavelength change fitting Column 89: Number of bright count cycles Column 90: Number of dark count cycles Column 91: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions Column 92: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions Column 93: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal Column 94: Integration time [ms] Column 95: Temperature at electronics board [°C], 999=no temperature signal Column 96: Spectrometer control temperature [°C], 999=no temperature signal Column 97: Auxiliary spectrometer temperature [°C], 999=no temperature signal Column 98: Temperature in head sensor [°C], 999=no temperature signal Column 99: Humidity in head sensor [%], -9=no humidity signal Column 100: Pressure in head sensor [hPa], -9=no pressure signal Columns 101-251: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 252-402: 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 --------------------------------------------------------------------------------------- SQ 20240309T205813.0Z 8834.873762 431 1 29.23 2 67.05 239.36 75.69 240.27 0.00 1 0.00 1 0 15 6.631e-03 6.637e-03 2.506e-03 2.498e-03 2.261418e+03 1.468726e+02 1.318266e+02 -6.000000e+00 3.579217e+02 272.79 -2.00 20.00 -2.00 505.25 0.00e+00 3.497340e-04 6.706155e-05 2.643306e-05 -6.000000e+00 1.820047e-04 272.79 -2.00 20.00 -2.00 500.33 0.00e+00 3.220365e-01 4.993572e-02 2.626870e-02 -6.000000e+00 1.321812e-01 225.52 -2.00 3.56 -2.00 501.94 0.00e+00 2.545 0.000 489.00 513.00 1 8.7936e+00 3.8146e-03 4.1308e-03 -6.0000e+00 1.0110e-02 1.5484e-02 9.8330e-04 5.6677e-04 -6.0000e+00 2.6128e-03 2.0344e-04 9.7564e-04 2.5498e-04 1.6810e-05 -6.0000e+00 6.9896e-04 -3.6372e-03 -2.0329e-06 12 9 8 11 32 0 97.11 26.93 2.08 -0.00364 0.00313 8 8 1 4 0 3653.730 35.50 20.00 26.93 12.31 3.8 862.12 63 -891 -846 118 -633 835 250 408 -3 617 2094 137 -327 -1047 -163 -7 80 319 -386 -176 415 1805 -194 1021 576 -595 -825 875 113 -539 -652 -455 -873 361 669 -31 -225 -973 117 -795 536 582 -1073 242 408 263 -34 587 370 -626 -935 333 1090 -525 -1315 856 -57 -112 119 -786 -361 -903 394 -150 -527 368 1588 680 429 -27 -988 221 28 401 -894 200 -777 -769 -284 -569 1192 -235 -968 517 224 -52 556 305 -132 650 591 -915 -920 -490 -84 -803 -554 420 -1520 290 522 280 354 404 -299 -887 -409 -379 114 -436 463 172 492 -26 778 -243 272 901 109 -126 411 155 -287 5 -1050 -738 1755 1518 295 687 962 143 -401 -190 261 -1039 229 -287 -20 684 675 87 -44 -1247 -44 -349 -337 587 141 160 -556 62 -892 -837 119 -664 881 270 444 -3 663 2186 144 -340 -1081 -166 -7 82 335 -418 -186 437 1879 -207 1073 611 -638 -883 909 120 -560 -665 -462 -906 367 697 -33 -238 -1028 121 -821 545 593 -1123 252 429 278 -36 608 377 -630 -952 326 1045 -513 -1322 866 -57 -114 121 -809 -369 -933 403 -154 -541 370 1551 660 428 -27 -978 216 27 384 -876 194 -749 -758 -275 -549 1132 -228 -918 487 213 -50 537 295 -129 629 577 -916 -932 -497 -84 -802 -541 396 -1427 272 484 262 327 386 -296 -894 -408 -374 111 -425 451 170 493 -26 763 -242 271 892 108 -124 397 153 -283 5 -1044 -733 1701 1473 289 669 929 138 -382 -178 242 -983 218 -279 -19 655 652 85 -43 -1246 -44 -345 -329 555 131 152 -515 SQ 20240309T211345.4Z 8834.884553 441 1 30.24 2 69.51 242.59 78.04 243.23 0.00 1 0.00 1 0 15 7.821e-03 7.820e-03 2.722e-03 2.712e-03 2.427094e+03 1.613982e+02 1.678786e+02 -6.000000e+00 4.221917e+02 272.79 -2.00 20.00 -2.00 505.26 0.00e+00 4.453614e-04 7.297515e-05 2.686482e-05 -6.000000e+00 2.146853e-04 272.79 -2.00 20.00 -2.00 500.30 0.00e+00 3.209127e-01 5.434319e-02 2.213102e-02 -6.000000e+00 1.559179e-01 225.52 -2.00 3.56 -2.00 501.93 0.00e+00 2.828 0.000 489.00 513.00 1 8.8994e+00 4.1586e-03 4.3439e-03 -6.0000e+00 1.1926e-02 1.8948e-02 1.0676e-03 5.4077e-04 -6.0000e+00 3.0820e-03 1.7577e-04 1.0028e-03 2.7618e-04 2.1600e-05 -6.0000e+00 8.2446e-04 -1.3336e-02 5.5758e-05 12 9 8 11 32 0 43.22 26.97 2.16 -0.01334 -0.00638 8 8 1 4 0 3778.810 35.50 20.00 26.97 12.22 3.9 862.06 -267 -407 -720 -71 -825 791 792 83 -86 352 388 24 -786 -881 -532 -670 -1372 415 168 -561 335 2301 250 1127 234 890 -753 882 -513 -791 -534 -1039 -1113 454 1354 -367 -473 500 -82 -187 -775 357 -1284 113 613 553 -236 1331 500 -636 -832 1448 1400 -433 -1328 1091 36 460 29 -1007 65 -867 343 -218 -1197 166 -207 1106 -30 -23 -699 325 360 -35 -934 620 256 210 -135 -702 1325 -298 -1343 2259 1614 -666 1414 602 128 1186 902 -337 -1516 -466 435 -1119 -453 612 -588 -22 906 795 401 -113 15 -938 -735 -775 397 -370 789 -150 156 -1115 1068 -657 712 741 -287 -190 -753 326 -600 283 -358 -1281 6 309 128 1017 1155 -385 -34 -290 238 -1076 -28 -756 -533 457 1125 -753 -29 -1406 386 1491 -472 586 -339 453 -461 -262 -404 -737 -72 -863 831 847 90 -94 378 410 26 -816 -903 -540 -683 -1427 433 180 -614 365 2462 262 1223 247 934 -799 946 -545 -820 -541 -1057 -1151 476 1447 -388 -499 517 -85 -198 -792 378 -1337 117 639 578 -247 1359 506 -661 -842 1397 1331 -421 -1328 1096 36 464 30 -1032 66 -889 349 -222 -1228 166 -205 1105 -30 -23 -687 316 353 -35 -909 617 252 204 -130 -675 1249 -288 -1320 2160 1569 -643 1343 578 123 1133 870 -332 -1532 -469 431 -1111 -437 571 -542 -21 831 736 367 -108 14 -936 -729 -759 380 -357 759 -148 155 -1137 1074 -650 725 728 -284 -193 -756 319 -587 274 -350 -1268 6 301 124 978 1104 -369 -32 -270 219 -1009 -27 -733 -524 451 1070 -733 -28 -1393 376 1430 -456 570 -326 426 -439