File name: Pandora108s1_Toronto-West_20250619_L2Fit_fwvt1c6d20211104p1-8.txt
File generation date: 20250620T052529.1Z
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 v1.8.75
Instrument operation file used: Pandora108_OF_v4d20210713.txt
Instrument calibration file used: Pandora108s1_CF_v6d20211104.txt
Level 1 file used: Pandora108s1_Toronto-West_20250619_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: 20250619
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
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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
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SQ 20250619T235544.4Z 9301.997041 41 1 8.30 2 80.15 293.10 129.39 353.96 0.00 1 0.00 1 0 22 2.481e-03 2.491e-03 7.405e-04 7.391e-04 9.511393e+03 5.070292e+01 6.326994e+02 -6.000000e+00 1.392680e+02 284.74 -2.00 20.00 -2.00 505.30 0.00e+00 1.095398e-03 2.053490e-05 7.662946e-05 -6.000000e+00 6.994230e-05 284.74 -2.00 20.00 -2.00 500.50 0.00e+00 6.061128e-01 1.476103e-02 6.485148e-02 -6.000000e+00 4.952387e-02 232.94 -2.00 3.57 -2.00 502.08 0.00e+00 5.585 0.003 489.00 513.00 1 4.6283e+00 1.1310e-03 9.7667e-03 -6.0000e+00 3.7967e-03 1.9743e-03 2.8866e-04 1.6046e-03 -6.0000e+00 9.8731e-04 8.1038e-03 5.7214e-04 6.9967e-05 7.1600e-05 -6.0000e+00 2.5310e-04 -5.2085e-05 -5.8779e-05 12 1 1 12 1 1 99.28 17.83 0.72 -0.00005 0.00392 21 26 1 4 0 377.000 23.22 14.99 17.83 23.06 32.3 969.01 -463 -200 -60 253 195 567 510 318 500 110 230 -67 -58 -182 -211 -131 -49 154 181 165 14 290 43 434 273 241 -126 38 -319 -505 -158 -400 -220 -106 114 -211 19 -92 -104 -153 -81 46 39 248 239 536 318 221 97 -153 -343 -332 -284 -308 -62 -201 -43 41 111 143 139 138 48 151 7 2 -211 -208 -269 -352 -173 -314 -257 -127 -70 -297 -114 -300 -242 -404 -392 -223 -323 -40 -161 -73 -199 16 -194 145 -26 189 108 158 128 45 36 -269 -258 -601 -370 -478 -343 -121 -375 -277 -167 -21 -45 34 -189 111 253 409 544 613 559 384 336 90 272 74 257 212 258 198 231 165 44 215 28 35 -19 148 -133 43 -9 -66 122 152 117 89 250 54 -16 -75 -268 -179 -232 -247 -452 -199 -58 254 200 594 542 340 531 116 238 -69 -59 -182 -210 -132 -50 162 184 169 14 298 45 449 284 250 -130 38 -333 -513 -159 -405 -229 -109 118 -220 20 -94 -105 -154 -82 47 41 257 250 560 330 226 98 -157 -344 -326 -278 -307 -64 -201 -44 42 113 146 143 142 49 154 7 2 -208 -203 -273 -353 -172 -315 -248 -124 -68 -288 -114 -295 -236 -395 -384 -220 -322 -38 -156 -71 -193 16 -187 140 -25 186 107 155 123 44 34 -251 -235 -545 -337 -447 -334 -117 -371 -275 -164 -20 -44 33 -188 111 255 414 552 626 576 398 346 91 271 73 251 208 254 195 228 163 43 211 27 33 -18 139 -126 42 -9 -66 124 149 116 88 250 54 -16 -74 -261 -179 -229 -245
SQ 20250620T001835.1Z 9302.012906 47 1 50.16 2 83.90 296.81 129.46 0.98 0.00 1 0.00 1 0 22 2.577e-03 2.553e-03 2.607e-04 2.596e-04 1.308268e+04 1.871876e+01 8.553305e+02 -6.000000e+00 1.446186e+02 284.74 -2.00 20.00 -2.00 505.36 0.00e+00 1.543258e-03 7.233598e-06 1.038212e-04 -6.000000e+00 7.263169e-05 284.74 -2.00 20.00 -2.00 500.52 0.00e+00 9.812718e-01 5.200802e-03 8.677416e-02 -6.000000e+00 5.143128e-02 232.94 -2.00 3.57 -2.00 502.10 0.00e+00 8.413 0.011 489.00 513.00 1 3.2048e+00 3.9954e-04 1.4233e-02 -6.0000e+00 3.9428e-03 -1.0635e-02 1.0051e-04 2.2085e-03 -6.0000e+00 1.0255e-03 2.1732e-02 1.7744e-04 2.4189e-05 8.7505e-05 -6.0000e+00 2.6284e-04 4.2690e-03 -9.1790e-05 10 0 0 10 0 0 99.77 17.85 0.72 0.00427 0.00550 693 136 1 4 0 72.370 23.22 15.00 17.85 23.08 32.2 969.22 -452 -363 -23 230 330 574 589 464 484 267 117 -15 -183 -195 -262 -132 -73 52 164 63 113 178 111 206 309 138 40 -27 -240 -490 -422 -448 -279 31 10 -42 -2 -36 -165 -133 -41 6 102 200 284 371 375 227 124 -139 -326 -402 -420 -240 -83 -20 17 108 132 183 183 167 95 152 63 -53 -132 -220 -222 -346 -278 -300 -247 -127 -76 -194 -360 -308 -358 -393 -414 -352 -351 -179 -117 -207 -106 -33 -26 67 91 199 267 223 217 175 -90 -227 -372 -575 -556 -428 -332 -151 -230 -205 -108 -110 -50 -44 -16 37 241 369 527 557 592 438 237 187 175 121 162 280 180 161 295 173 81 176 70 -116 27 -97 -106 50 26 -56 137 225 136 201 206 157 60 -18 -144 -294 -365 -351 -403 -331 -22 223 328 582 606 480 499 272 118 -15 -179 -190 -254 -130 -73 53 171 66 119 189 118 219 331 148 43 -28 -245 -489 -416 -446 -286 33 11 -46 -2 -38 -173 -139 -43 6 110 217 309 405 406 243 131 -142 -325 -394 -409 -237 -85 -21 18 116 131 181 182 167 96 152 63 -52 -137 -226 -225 -348 -278 -301 -251 -130 -73 -198 -361 -304 -350 -383 -404 -346 -349 -180 -111 -196 -100 -31 -24 63 86 191 256 212 201 169 -84 -207 -334 -511 -497 -393 -296 -140 -221 -199 -104 -105 -47 -42 -16 37 238 366 523 557 599 448 242 188 173 117 157 270 175 157 289 170 79 171 67 -111 26 -91 -100 48 26 -56 139 232 141 211 217 166 63 -18 -148 -297 -365 -352