File name: Pandora104s1_Downsview_20211225_L2Fit_fwvt1c22d20211217p1-8.txt
File generation date: 20241127T121725.0Z
Data description: Level 2 spectral fitting results file
Data file version: fwvt1c22p1-8
Local principal investigator: Vitali Fioletov
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 104
Spectrometer number: 1
Processing software version used: BlickP v1.8.60
Instrument operation file used: Pandora104_OF_v10d20171009.txt
Instrument calibration file used: Pandora104s1_CF_v22d20211217.txt
Level 1 file used: Pandora104s1_Downsview_20211225_L1_smca1c22d20211217p1-8.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: 20211225
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: Modification of session 16 for SO2 "based on session 14 for vp 20211217"
First and last pixel inside fitting window: 1633 1783
Nominal wavelengths inside fitting window [nm]: 492.0779 492.1984 492.3189 492.4394 492.5598 492.6803 492.8007 492.9211 493.0415 493.1619 493.2822 493.4026 493.5229 493.6432 493.7635 493.8838 494.0041 494.1243 494.2445 494.3647 494.4849 494.6051 494.7253 494.8454 494.9655 495.0856 495.2057 495.3258 495.4458 495.5659 495.6859 495.8059 495.9259 496.0458 496.1658 496.2857 496.4056 496.5255 496.6454 496.7653 496.8851 497.0050 497.1248 497.2446 497.3643 497.4841 497.6038 497.7236 497.8433 497.9630 498.0826 498.2023 498.3219 498.4416 498.5612 498.6808 498.8003 498.9199 499.0394 499.1589 499.2784 499.3979 499.5174 499.6368 499.7563 499.8757 499.9951 500.1144 500.2338 500.3532 500.4725 500.5918 500.7111 500.8304 500.9496 501.0689 501.1881 501.3073 501.4265 501.5456 501.6648 501.7839 501.9030 502.0221 502.1412 502.2603 502.3793 502.4984 502.6174 502.7364 502.8554 502.9743 503.0933 503.2122 503.3311 503.4500 503.5689 503.6877 503.8066 503.9254 504.0442 504.1630 504.2817 504.4005 504.5192 504.6379 504.7566 504.8753 504.9940 505.1126 505.2313 505.3499 505.4685 505.5870 505.7056 505.8241 505.9427 506.0612 506.1797 506.2981 506.4166 506.5350 506.6534 506.7718 506.8902 507.0086 507.1269 507.2453 507.3636 507.4819 507.6001 507.7184 507.8366 507.9549 508.0731 508.1913 508.3094 508.4276 508.5457 508.6638 508.7819 508.9000 509.0181 509.1361 509.2542 509.3722 509.4902 509.6081 509.7261 509.8440 509.9620
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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
Columns 98-248: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting
Columns 249-399: 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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SO 20211225T143709.1Z 8029.609134 335 1 12.88 2 76.62 142.44 65.90 259.86 0.00 1 0.00 1 0 15 2.039e-03 2.040e-03 5.273e-04 5.265e-04 4.839105e+03 3.148196e+01 3.457786e+02 -6.000000e+00 1.066614e+02 273.10 -2.00 20.00 -2.00 505.29 0.00e+00 6.796251e-04 1.401231e-05 4.441044e-05 -6.000000e+00 5.536260e-05 273.10 -2.00 20.00 -2.00 500.54 0.00e+00 3.095020e-01 1.023767e-02 3.782021e-02 -6.000000e+00 3.985452e-02 222.56 -2.00 3.57 -2.00 502.12 0.00e+00 4.219 0.001 489.00 513.00 1 5.4434e+00 7.8106e-04 6.7893e-03 -6.0000e+00 3.0438e-03 3.2168e-03 2.0193e-04 9.6133e-04 -6.0000e+00 7.9505e-04 4.5289e-03 6.6669e-04 4.4646e-05 4.6594e-05 -6.0000e+00 1.8013e-04 -7.9170e-03 -5.5075e-05 12 1 1 12 1 1 99.78 21.58 1.28 -0.00792 -0.00329 27 15 1 4 0 453.750 21.58 15.02 18.40 -96 -300 -171 -81 -102 224 343 273 353 211 252 239 -236 -132 -184 -47 -51 -81 -15 -170 -3 188 171 215 367 166 174 21 -175 -146 66 97 -143 96 -140 -195 -40 76 -66 2 155 20 74 17 158 256 170 58 96 -118 -385 -393 -250 -324 -135 -303 -386 -236 -42 120 158 317 157 180 205 88 165 -7 -6 -170 -182 -23 -24 -110 -128 -300 -220 -8 -63 -142 -254 -182 -368 -288 -174 -112 -271 -60 -7 154 141 184 272 69 36 3 140 -111 -179 -238 -386 13 -269 -247 -380 -559 -289 -130 24 137 84 -119 -15 133 261 359 538 386 269 138 157 367 289 457 120 160 113 158 95 176 70 -171 -47 36 -76 25 142 -167 -251 12 57 63 122 116 41 -130 -224 -248 -93 -92 -5 -93 -287 -168 -81 -104 231 351 280 363 214 259 243 -238 -131 -181 -47 -51 -83 -15 -177 -3 195 178 224 384 174 181 22 -178 -147 65 95 -143 97 -148 -207 -42 78 -68 2 157 20 76 18 166 270 179 60 98 -118 -385 -383 -239 -310 -133 -300 -393 -242 -43 123 161 325 162 186 210 89 164 -7 -6 -169 -178 -22 -24 -110 -126 -296 -219 -8 -61 -136 -245 -176 -361 -284 -174 -109 -266 -59 -7 150 139 183 275 71 36 3 135 -108 -170 -221 -365 12 -256 -239 -383 -553 -292 -130 24 134 83 -121 -15 133 262 361 544 394 275 140 156 368 286 452 121 156 111 154 95 176 69 -170 -46 34 -73 24 139 -163 -247 12 58 64 124 119 41 -130 -228 -247 -90 -90 -5
SO 20211225T150026.0Z 8029.625301 345 1 33.37 2 74.21 147.37 70.02 263.94 0.00 1 0.00 1 0 15 2.491e-03 2.476e-03 1.009e-03 1.006e-03 4.117852e+03 5.973940e+01 2.952544e+02 -6.000000e+00 1.302725e+02 273.10 -2.00 20.00 -2.00 505.26 0.00e+00 6.058447e-04 2.668079e-05 3.863807e-05 -6.000000e+00 6.761764e-05 273.10 -2.00 20.00 -2.00 500.46 0.00e+00 2.378020e-01 1.960818e-02 3.196520e-02 -6.000000e+00 4.867624e-02 222.56 -2.00 3.57 -2.00 502.04 0.00e+00 3.611 0.001 489.00 513.00 1 7.5022e+00 1.4942e-03 5.7974e-03 -6.0000e+00 3.7175e-03 7.5650e-03 3.8873e-04 8.1196e-04 -6.0000e+00 9.7101e-04 6.3374e-04 7.2794e-04 8.5413e-05 4.1121e-05 -6.0000e+00 2.1999e-04 -1.0798e-02 -3.6112e-05 10 0 0 10 0 0 98.63 21.58 1.39 -0.01080 -0.00575 11 2 1 4 0 3032.580 21.58 14.83 18.38 -348 -143 -286 -118 28 243 372 311 296 232 264 125 -108 -111 -257 -205 112 -83 93 -258 -1 144 153 212 274 158 140 -125 -282 -240 85 144 -149 189 -274 -209 -138 348 -21 64 -41 147 84 45 224 233 278 308 93 -268 -295 -210 -186 -257 -211 -386 -396 -227 -193 181 207 205 283 185 170 216 99 165 -60 -140 -132 201 -170 -194 -122 -340 -194 -1288 318 -125 -246 -285 -302 -200 -266 62 -230 54 -127 251 13 282 197 209 76 53 59 -129 -92 -295 -267 -303 -106 -381 -297 -745 -237 -78 44 153 108 34 61 143 334 235 556 597 76 132 415 277 250 375 12 188 72 482 -31 194 -28 -169 99 -59 -69 -95 -39 -69 -197 -18 -17 -123 213 44 135 -29 -23 -313 -157 -136 -67 -332 -138 -287 -116 28 248 388 327 312 241 269 126 -108 -109 -251 -200 111 -85 97 -274 -1 153 162 225 293 168 148 -132 -293 -238 82 140 -148 195 -294 -225 -146 365 -22 66 -43 152 88 47 239 250 296 323 96 -273 -290 -201 -176 -243 -205 -389 -409 -237 -202 187 214 214 295 194 177 221 99 163 -59 -136 -127 192 -165 -190 -123 -340 -190 -1247 300 -118 -233 -272 -291 -194 -261 62 -229 53 -127 248 13 284 202 216 78 53 58 -123 -86 -270 -241 -277 -99 -374 -303 -731 -230 -79 44 152 108 35 60 141 331 233 555 600 77 131 405 266 250 375 12 181 69 462 -29 185 -27 -169 97 -57 -66 -92 -39 -66 -191 -18 -17 -123 213 44 136 -29 -23 -306 -149 -127 -63