File name: Pandora284s1_Downsview_20251107_L2Fit_fwvt1c2d20241105p1-8.txt
File generation date: 20251108T050541.9Z
Data description: Level 2 spectral fitting results file
Data file version: fwvt1c2p1-8
Local principal investigator: Vitali Fioletov
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 284
Spectrometer number: 1
Processing software version used: BlickP v1.8.75
Instrument operation file used: Pandora284_OF_v3d20240708.txt
Instrument calibration file used: Pandora284s1_CF_v2d20241105.txt
Level 1 file used: Pandora284s1_Downsview_20251107_L1_smca1c2d20241105p1-8.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: 20251107
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: OoB session based off of session 1
First and last pixel inside fitting window: 1618 1768
Nominal wavelengths inside fitting window [nm]: 492.0083 492.1292 492.2500 492.3709 492.4917 492.6125 492.7332 492.8540 492.9747 493.0955 493.2162 493.3369 493.4575 493.5782 493.6988 493.8194 493.9401 494.0606 494.1812 494.3018 494.4223 494.5428 494.6633 494.7838 494.9043 495.0248 495.1452 495.2656 495.3860 495.5064 495.6268 495.7472 495.8675 495.9878 496.1081 496.2284 496.3487 496.4689 496.5892 496.7094 496.8296 496.9498 497.0700 497.1901 497.3102 497.4304 497.5505 497.6706 497.7906 497.9107 498.0307 498.1507 498.2707 498.3907 498.5107 498.6306 498.7506 498.8705 498.9904 499.1103 499.2301 499.3500 499.4698 499.5896 499.7094 499.8292 499.9490 500.0687 500.1885 500.3082 500.4279 500.5475 500.6672 500.7869 500.9065 501.0261 501.1457 501.2653 501.3848 501.5044 501.6239 501.7434 501.8629 501.9824 502.1018 502.2213 502.3407 502.4601 502.5795 502.6989 502.8182 502.9376 503.0569 503.1762 503.2955 503.4148 503.5340 503.6533 503.7725 503.8917 504.0109 504.1300 504.2492 504.3683 504.4874 504.6065 504.7256 504.8447 504.9637 505.0828 505.2018 505.3208 505.4398 505.5587 505.6777 505.7966 505.9155 506.0344 506.1533 506.2721 506.3910 506.5098 506.6286 506.7474 506.8662 506.9849 507.1037 507.2224 507.3411 507.4598 507.5785 507.6971 507.8158 507.9344 508.0530 508.1716 508.2901 508.4087 508.5272 508.6458 508.7643 508.8827 509.0012 509.1196 509.2381 509.3565 509.4749 509.5933 509.7116 509.8300 509.9483
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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 101-251: 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
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SQ 20251107T122125.2Z 9442.514875 267 1 54.79 2 87.68 115.54 66.64 285.49 0.00 1 0.00 1 0 22 3.675e-03 3.619e-03 3.002e-04 2.994e-04 9.470240e+03 1.886667e+01 6.604197e+02 -6.000000e+00 1.910044e+02 278.17 -2.00 20.00 -2.00 505.39 0.00e+00 2.783452e-03 8.055084e-06 1.559492e-04 -6.000000e+00 1.000177e-04 278.17 -2.00 20.00 -2.00 500.92 0.00e+00 1.327993e+00 5.668789e-03 7.013582e-02 -6.000000e+00 7.105020e-02 223.30 -2.00 3.57 -2.00 502.44 0.00e+00 15.250 0.069 489.00 513.00 1 3.0544e+00 4.3228e-04 2.4476e-02 -6.0000e+00 5.4253e-03 -1.8909e-02 1.1123e-04 2.1025e-03 -6.0000e+00 1.4333e-03 9.4792e-03 6.1517e-04 2.4158e-05 1.0083e-04 -6.0000e+00 3.1345e-04 6.6898e-04 -1.6448e-04 10 0 0 10 0 0 99.56 21.94 1.53 0.00067 0.00494 114 11 1 4 0 480.570 29.25 15.00 21.94 11.70 1.9 918.04 900000 -724 -379 -77 321 451 591 686 548 521 244 88 -103 -321 -237 -377 -121 -1 150 273 322 259 276 398 335 482 502 424 -10 -229 -552 -579 -395 -105 66 202 148 -65 -284 -381 -414 -231 -96 118 263 261 323 241 19 -226 -417 -830 -873 -741 -483 -206 -43 123 115 131 176 287 369 468 348 234 147 28 -159 -227 -368 -369 -188 -68 -7 -15 -137 -329 -505 -522 -516 -492 -481 -285 -332 -156 -124 -173 -165 -125 -2 170 237 396 512 392 239 87 -381 -591 -891 -778 -535 -378 -239 -27 -114 -363 -336 -470 -304 -120 110 319 525 716 797 721 600 500 256 202 278 202 204 341 150 180 186 151 109 143 -68 -305 -303 -293 -363 -95 127 169 171 196 155 302 376 324 162 -50 -309 -501 -499 900000 -641 -345 -73 300 430 576 680 547 516 238 85 -98 -303 -221 -352 -114 -1 148 265 314 253 270 390 331 480 499 421 -10 -228 -532 -556 -383 -100 66 207 151 -66 -285 -378 -410 -230 -97 120 273 274 339 251 20 -229 -411 -797 -822 -695 -461 -204 -44 128 116 131 175 288 373 475 353 235 152 28 -160 -226 -362 -362 -186 -68 -8 -15 -138 -326 -492 -506 -499 -479 -473 -281 -332 -158 -121 -169 -160 -126 -2 166 237 399 511 382 236 84 -358 -544 -811 -711 -501 -371 -236 -27 -116 -365 -333 -465 -305 -123 114 334 552 755 813 748 629 521 263 203 286 208 212 344 152 183 189 154 112 144 -70 -312 -308 -300 -366 -98 133 180 185 213 164 320 400 345 171 -54 -326 -522 -522
SQ 20251107T122446.6Z 9442.517207 271 1 55.90 2 87.13 116.13 67.20 285.98 0.00 1 0.00 1 0 22 5.394e-03 5.372e-03 3.245e-03 3.221e-03 9.030023e+03 2.076226e+02 6.147913e+02 -6.000000e+00 2.803149e+02 278.17 -2.00 20.00 -2.00 505.52 0.00e+00 2.757243e-03 8.707927e-05 1.519185e-04 -6.000000e+00 1.467767e-04 278.17 -2.00 20.00 -2.00 501.04 0.00e+00 1.270684e+00 6.081544e-02 7.323928e-02 -6.000000e+00 1.042360e-01 223.30 -2.00 3.57 -2.00 502.59 0.00e+00 13.881 0.052 489.00 513.00 1 6.4730e+00 4.6355e-03 2.1951e-02 -6.0000e+00 7.9597e-03 -2.8217e-02 1.1771e-03 2.0544e-03 -6.0000e+00 2.1019e-03 3.7793e-04 1.3297e-04 2.6241e-04 8.7137e-05 -6.0000e+00 4.5987e-04 4.0505e-04 -1.3683e-04 12 8 8 10 0 0 99.59 21.93 1.98 0.00041 0.00133 16 2 1 4 0 3493.350 29.25 15.00 21.93 11.73 1.9 918.02 900000 -1313 380 -425 -749 -230 215 453 205 887 346 520 -1122 77 442 -886 9 -437 766 801 21 162 262 1164 98 -40 281 968 -153 -618 256 -433 -232 -874 301 242 298 -63 -337 -386 151 61 17 77 484 202 40 163 -366 -108 -797 -725 -322 -674 -713 -191 232 644 166 -15 764 434 727 393 289 168 -266 -699 42 -266 -7 -684 544 -67 -308 39 -115 -162 -452 -541 -894 -460 -655 285 -718 -122 360 252 -540 -955 -146 179 345 877 687 117 -393 301 -165 -87 -639 -1336 -468 -201 -479 446 -132 -891 -281 -716 -668 221 135 81 611 565 1250 433 710 840 37 924 -78 -285 623 247 -118 1145 170 -319 -445 331 -519 -37 -190 -841 -132 152 -450 -323 300 73 1009 361 506 683 253 -99 -1238 -604 -853 900000 -1097 322 -379 -694 -217 207 443 202 860 331 492 -1064 71 402 -817 8 -414 742 794 21 162 263 1162 100 -41 287 982 -154 -605 240 -407 -221 -866 308 254 312 -65 -347 -393 153 62 18 81 514 218 40 162 -361 -112 -810 -713 -309 -648 -701 -180 225 636 165 -14 753 431 728 397 292 168 -262 -681 40 -252 -7 -641 509 -64 -300 38 -111 -152 -420 -499 -827 -427 -615 267 -687 -118 348 244 -524 -927 -141 174 342 877 683 114 -374 277 -148 -76 -555 -1174 -420 -189 -475 449 -134 -899 -278 -708 -672 225 139 85 640 594 1318 468 772 905 40 958 -80 -294 644 258 -125 1197 180 -338 -474 345 -536 -37 -192 -862 -137 162 -493 -358 336 82 1136 413 580 782 287 -110 -1364 -652 -928