File name: Pandora108s1_Toronto-West_20230109_L2Fit_fwvt1c6d20211104p1-8.txt File generation date: 20240820T125543.5Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c6p1-8 Local principal investigator: Vitali Fioletov Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 108 Spectrometer number: 1 Processing software version used: BlickP v1.8.59 Instrument operation file used: Pandora108_OF_v3d20210713.txt Instrument calibration file used: Pandora108s1_CF_v6d20211104.txt Level 1 file used: Pandora108s1_Toronto-West_20230109_L1_smca1c6d20211104p1-8.txt Full location name: Ontario Ministry of the Environment, Toronto West (Etobicoke) Short location name: Toronto-West Country of location: Canada Location latitude [deg]: 43.7094 Location longitude [deg]: -79.5435 Location altitude [m]: 141 Local noon date: 20230109 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: 1653 1802 Nominal wavelengths inside fitting window [nm]: 492.1141 492.2350 492.3559 492.4768 492.5976 492.7185 492.8393 492.9601 493.0809 493.2016 493.3224 493.4431 493.5638 493.6845 493.8052 493.9259 494.0466 494.1672 494.2878 494.4084 494.5290 494.6496 494.7701 494.8907 495.0112 495.1317 495.2522 495.3726 495.4931 495.6135 495.7339 495.8543 495.9747 496.0951 496.2154 496.3358 496.4561 496.5764 496.6967 496.8169 496.9372 497.0574 497.1776 497.2978 497.4180 497.5382 497.6583 497.7785 497.8986 498.0187 498.1388 498.2588 498.3789 498.4989 498.6189 498.7389 498.8589 498.9789 499.0988 499.2187 499.3387 499.4585 499.5784 499.6983 499.8181 499.9380 500.0578 500.1776 500.2973 500.4171 500.5368 500.6566 500.7763 500.8960 501.0156 501.1353 501.2549 501.3746 501.4942 501.6138 501.7333 501.8529 501.9724 502.0920 502.2115 502.3310 502.4504 502.5699 502.6893 502.8087 502.9281 503.0475 503.1669 503.2862 503.4056 503.5249 503.6442 503.7635 503.8827 504.0020 504.1212 504.2404 504.3596 504.4788 504.5980 504.7171 504.8363 504.9554 505.0745 505.1935 505.3126 505.4316 505.5507 505.6697 505.7887 505.9076 506.0266 506.1455 506.2645 506.3834 506.5023 506.6211 506.7400 506.8588 506.9776 507.0964 507.2152 507.3340 507.4527 507.5715 507.6902 507.8089 507.9276 508.0462 508.1649 508.2835 508.4021 508.5207 508.6393 508.7578 508.8764 508.9949 509.1134 509.2319 509.3504 509.4688 509.5873 509.7057 509.8241 509.9425 --------------------------------------------------------------------------------------- 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 101-250: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 251-400: 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 20230109T141919.3Z 8409.596751 316 1 50.39 2 78.38 136.68 85.52 293.05 0.00 1 0.00 1 0 15 5.023e-03 5.009e-03 3.727e-03 3.713e-03 2.271992e+03 2.185024e+02 1.723050e+02 -6.000000e+00 2.683341e+02 272.50 -2.00 20.00 -2.00 505.28 0.00e+00 1.484154e-03 9.955297e-05 8.197024e-05 -6.000000e+00 1.374679e-04 272.50 -2.00 20.00 -2.00 500.39 0.00e+00 5.758784e-01 7.390414e-02 2.143254e-02 -6.000000e+00 9.965248e-02 223.19 -2.00 3.57 -2.00 502.00 0.00e+00 4.807 0.002 489.00 513.00 1 7.8654e+00 5.6436e-03 7.2499e-03 -6.0000e+00 7.6150e-03 1.1960e-02 1.4571e-03 5.8368e-04 -6.0000e+00 1.9809e-03 3.5983e-04 7.3789e-04 3.6914e-04 3.7370e-05 -6.0000e+00 5.1144e-04 5.7683e-03 -3.0661e-05 12 8 8 10 0 0 99.86 18.18 0.64 0.00577 0.01089 59 12 1 4 0 853.880 23.53 15.01 18.18 4.24 26.3 1011.09 -324 -551 119 -418 674 -233 1124 -312 796 290 566 -293 -561 3 -825 309 -783 621 -223 469 -238 264 238 69 365 -555 433 -589 389 -1005 254 -538 -9 563 -94 269 -497 496 -858 562 -246 775 134 368 495 -53 219 -568 607 -621 188 -885 26 -493 112 192 -179 494 -387 449 -463 643 -54 291 258 309 -61 -659 92 -905 400 -630 231 -423 586 -259 -558 -20 -936 241 -902 324 -855 514 -326 92 -17 -351 228 -772 500 -183 770 -313 674 -1 477 -223 -544 1 -1147 -14 -797 785 -783 382 -184 25 253 -493 356 -247 830 -712 672 39 762 149 429 389 -364 434 -320 530 -348 1078 -76 743 -547 -10 421 -399 498 -540 422 -577 160 -505 373 44 -86 213 -218 462 -624 291 -606 353 -201 -160 -306 -533 118 -428 700 -249 1197 -338 847 305 586 -302 -570 3 -831 310 -809 647 -238 502 -257 282 255 74 394 -602 461 -623 396 -1010 250 -539 -10 591 -101 288 -530 518 -898 579 -256 806 141 392 529 -57 232 -597 618 -623 182 -850 25 -478 111 195 -186 511 -403 463 -482 665 -56 301 264 311 -61 -651 89 -877 382 -610 224 -417 573 -253 -536 -18 -884 225 -854 305 -821 491 -316 89 -17 -342 221 -759 491 -183 770 -315 664 -1 452 -208 -498 1 -1044 -13 -762 761 -780 375 -179 24 241 -479 348 -246 829 -727 681 40 777 152 433 387 -359 420 -312 514 -342 1044 -74 719 -535 -10 402 -378 461 -501 390 -546 153 -495 367 44 -86 213 -220 465 -631 288 -594 335 -189 -150 SQ 20230109T144027.5Z 8409.611430 334 1 51.27 2 75.86 140.99 88.93 296.45 0.00 1 0.00 1 0 15 3.672e-03 3.662e-03 2.137e-03 2.130e-03 2.036713e+03 1.237116e+02 1.499556e+02 -6.000000e+00 1.961433e+02 272.50 -2.00 20.00 -2.00 505.27 0.00e+00 1.217263e-03 5.707848e-05 6.889311e-05 -6.000000e+00 1.004866e-04 272.50 -2.00 20.00 -2.00 500.39 0.00e+00 4.365966e-01 4.234675e-02 1.970092e-02 -6.000000e+00 7.285499e-02 223.19 -2.00 3.57 -2.00 502.00 0.00e+00 4.006 0.001 489.00 513.00 1 8.0218e+00 3.2341e-03 6.0801e-03 -6.0000e+00 5.5671e-03 1.3947e-02 8.3700e-04 5.1638e-04 -6.0000e+00 1.4485e-03 3.4916e-04 5.0125e-04 2.1183e-04 3.1986e-05 -6.0000e+00 3.7389e-04 5.3857e-03 -4.0745e-05 10 0 0 10 0 0 96.92 18.20 0.84 0.00539 0.00886 13 3 1 4 0 3943.100 23.64 15.00 18.20 4.77 26.3 1014.32 -810 -257 -139 254 -128 491 476 497 733 -35 624 -192 3 -688 -87 -825 150 174 127 62 -87 357 -62 684 47 335 -186 -203 -283 -526 -477 -576 94 12 421 -251 308 -362 79 -305 -14 424 262 304 -20 916 -353 778 -197 -16 -845 -137 -510 -321 80 -256 208 -77 477 -224 428 143 34 171 -253 84 -535 231 -364 81 122 -385 -165 8 147 -111 -173 -438 340 -733 -194 -405 -25 -382 -413 79 -154 461 -312 291 -253 136 49 -127 183 9 277 -423 388 -563 -229 -885 196 7 -287 -1 126 -101 -153 205 -192 544 -35 427 -54 88 540 -151 516 136 554 -779 604 -41 393 576 -305 477 -229 214 31 273 -559 137 -462 116 -149 331 69 -154 368 -96 479 -187 169 -109 326 -418 -548 -274 -777 -250 -139 259 -134 519 508 532 778 -37 647 -197 3 -696 -87 -840 154 182 135 66 -94 381 -66 731 51 358 -199 -214 -290 -529 -475 -579 96 13 448 -269 325 -380 82 -316 -15 441 275 321 -21 966 -373 805 -202 -16 -830 -131 -489 -312 80 -261 214 -80 490 -231 440 148 35 177 -259 85 -535 227 -356 78 117 -373 -161 8 145 -108 -166 -417 320 -694 -184 -386 -24 -370 -402 77 -151 448 -306 285 -250 136 49 -128 182 9 265 -398 356 -515 -209 -827 187 7 -285 -1 122 -98 -148 198 -189 538 -36 430 -55 90 549 -154 519 135 542 -763 584 -40 382 561 -298 463 -224 207 30 257 -525 127 -432 109 -143 321 68 -152 364 -96 477 -188 169 -108 315 -400 -517 -258