File name: Pandora170s1_StGeorge_20240113_L2Fit_fwvt1c8d20220508p1-8.txt File generation date: 20240428T063412.0Z Data description: Level 2 spectral fitting results file Data file version: fwvt1c8p1-8 Local principal investigator: Vitali Fioletov Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 170 Spectrometer number: 1 Processing software version used: BlickP v1.8.59 Instrument operation file used: Pandora170_OF_v9d20200302.txt Instrument calibration file used: Pandora170s1_CF_v8d20220508.txt Level 1 file used: Pandora170s1_StGeorge_20240113_L1_smca1c8d20220508p1-8.txt Full location name: University of Toronto - Downtown (St. George) campus Short location name: StGeorge Country of location: Canada Location latitude [deg]: 43.6605 Location longitude [deg]: -79.3986 Location altitude [m]: 176 Local noon date: 20240113 Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are latency correction, radiometric temperature correction, matrix method stray light correction (replaced by simple method) Data caveats: None First and last pixel inside fitting window: 1633 1782 Nominal wavelengths inside fitting window [nm]: 492.0081 492.1294 492.2507 492.3720 492.4932 492.6145 492.7357 492.8569 492.9781 493.0993 493.2204 493.3416 493.4627 493.5838 493.7049 493.8260 493.9470 494.0681 494.1891 494.3101 494.4311 494.5521 494.6730 494.7940 494.9149 495.0358 495.1567 495.2776 495.3984 495.5193 495.6401 495.7609 495.8817 496.0025 496.1232 496.2440 496.3647 496.4854 496.6061 496.7268 496.8474 496.9681 497.0887 497.2093 497.3299 497.4505 497.5710 497.6915 497.8121 497.9326 498.0531 498.1735 498.2940 498.4144 498.5348 498.6552 498.7756 498.8960 499.0164 499.1367 499.2570 499.3773 499.4976 499.6179 499.7381 499.8584 499.9786 500.0988 500.2190 500.3391 500.4593 500.5794 500.6995 500.8196 500.9397 501.0598 501.1798 501.2999 501.4199 501.5399 501.6598 501.7798 501.8998 502.0197 502.1396 502.2595 502.3794 502.4992 502.6191 502.7389 502.8587 502.9785 503.0983 503.2180 503.3378 503.4575 503.5772 503.6969 503.8166 503.9362 504.0559 504.1755 504.2951 504.4147 504.5343 504.6538 504.7733 504.8929 505.0124 505.1319 505.2513 505.3708 505.4902 505.6096 505.7290 505.8484 505.9678 506.0871 506.2064 506.3258 506.4451 506.5643 506.6836 506.8028 506.9221 507.0413 507.1605 507.2796 507.3988 507.5179 507.6371 507.7562 507.8753 507.9943 508.1134 508.2324 508.3514 508.4705 508.5894 508.7084 508.8274 508.9463 509.0652 509.1841 509.3030 509.4219 509.5407 509.6595 509.7783 509.8971 --------------------------------------------------------------------------------------- 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 20240113T143042.3Z 8778.604656 85 1 50.03 2 76.56 138.48 93.12 113.39 0.00 1 0.00 1 0 15 3.491e-03 3.460e-03 2.854e-04 2.849e-04 1.793298e+03 1.532360e+01 1.441001e+02 -6.000000e+00 1.768052e+02 272.08 -2.00 20.00 -2.00 505.26 0.00e+00 8.143632e-04 7.492260e-06 4.533095e-05 -6.000000e+00 9.385951e-05 272.08 -2.00 20.00 -2.00 500.45 0.00e+00 5.418436e-01 5.522510e-03 1.434909e-02 -6.000000e+00 6.813562e-02 223.34 -2.00 3.57 -2.00 502.04 0.00e+00 4.202 0.001 489.00 513.00 1 4.4752e+00 4.1987e-04 6.0921e-03 -6.0000e+00 5.1835e-03 6.1518e-03 1.1169e-04 4.6493e-04 -6.0000e+00 1.3844e-03 1.1803e-02 1.4201e-03 2.3440e-05 2.5610e-05 -6.0000e+00 2.9452e-04 3.9170e-03 -1.3661e-04 10 0 0 10 0 0 100.00 23.03 0.84 0.00392 0.01377 868 174 1 4 0 57.570 26.94 20.00 23.03 6.65 7.8 967.50 900000 -906 -321 -62 46 337 587 566 571 380 351 197 -149 -211 -295 -456 -333 -51 121 62 181 112 27 206 312 248 448 435 -67 -285 -415 -711 -642 161 291 239 300 137 -100 -183 -169 -132 -25 118 270 328 328 252 204 -117 -382 -619 -940 -863 -467 -154 43 181 95 80 61 296 308 446 386 202 132 0 -96 -452 -386 -399 -330 89 144 12 -100 -230 -440 -537 -367 -318 -450 -212 -89 -186 -166 -87 -111 -182 -201 139 351 330 465 436 221 -38 -289 -564 -771 -837 -496 85 1 74 7 -346 -347 -250 -154 -25 287 313 447 530 634 568 442 432 144 -79 95 156 15 275 192 90 225 419 91 107 16 -518 -502 -142 -109 -71 217 252 97 179 261 289 342 202 -69 -356 -580 -652 900000 -871 -316 -61 46 349 620 587 593 392 369 205 -153 -213 -294 -455 -335 -52 123 65 190 118 29 215 329 263 472 455 -69 -294 -414 -708 -648 162 304 254 317 143 -103 -186 -172 -135 -25 123 285 348 347 264 210 -118 -374 -610 -911 -835 -462 -152 44 187 98 82 62 304 318 462 397 205 132 0 -94 -436 -381 -393 -317 86 142 12 -97 -218 -428 -521 -356 -301 -430 -203 -87 -183 -164 -86 -110 -179 -200 139 346 329 458 438 217 -37 -272 -537 -727 -798 -470 84 1 73 7 -344 -340 -245 -154 -25 286 315 451 537 646 582 450 433 142 -76 92 151 15 269 188 88 219 408 88 102 16 -497 -479 -137 -105 -69 215 252 98 180 265 286 339 200 -69 -347 -552 -618 SQ 20240113T143504.3Z 8778.607688 88 1 3.11 2 76.05 139.38 92.41 114.09 0.00 1 0.00 1 0 15 4.394e-03 4.363e-03 1.937e-03 1.935e-03 1.832374e+03 1.040213e+02 1.382096e+02 -6.000000e+00 2.225435e+02 272.08 -2.00 20.00 -2.00 505.26 0.00e+00 8.720283e-04 5.091407e-05 4.694915e-05 -6.000000e+00 1.180927e-04 272.08 -2.00 20.00 -2.00 500.43 0.00e+00 4.247914e-01 3.736152e-02 1.616986e-02 -6.000000e+00 8.549710e-02 223.34 -2.00 3.57 -2.00 502.03 0.00e+00 4.055 0.001 489.00 513.00 1 5.2927e+00 2.8434e-03 5.9317e-03 -6.0000e+00 6.5104e-03 1.0140e-02 7.5196e-04 4.7517e-04 -6.0000e+00 1.7276e-03 5.3559e-03 2.4340e-04 1.5863e-04 2.5374e-05 -6.0000e+00 3.6970e-04 -6.5812e-05 -5.5037e-05 12 9 1 12 1 1 999.00 23.03 1.00 -0.00007 0.00162 2 10 1 4 0 1034.280 26.94 20.00 23.03 6.75 7.7 967.33 -967 -960 -322 -272 268 370 602 394 595 411 462 329 -196 -560 -274 -349 -629 -282 -76 129 264 373 179 343 376 527 459 520 -99 -387 -347 -1018 -584 171 385 632 361 -237 182 -311 -112 -254 -110 170 467 230 685 526 116 -128 -510 -750 -1021 -969 -544 -266 147 353 112 476 -10 514 202 737 374 417 -127 -74 -160 -369 -131 -572 -330 298 293 269 172 -365 -655 -514 -645 -318 -603 -437 -189 268 -429 247 125 -251 -211 -51 588 212 385 537 11 49 -262 -133 -973 -744 -627 222 200 -93 79 -665 -343 -87 -415 -64 505 657 572 364 783 285 506 803 267 -161 -111 190 -249 135 217 57 126 471 -124 322 -116 -738 -723 -336 27 153 686 93 -5 218 306 242 143 206 -366 -299 -487 -843 -942 -941 -317 -272 270 380 618 412 623 427 481 338 -199 -563 -277 -353 -631 -288 -78 136 277 392 188 361 390 548 476 535 -103 -395 -342 -1007 -584 173 397 661 376 -245 188 -319 -114 -261 -114 174 485 240 710 540 118 -130 -514 -733 -1001 -948 -533 -265 150 357 114 479 -10 519 206 748 379 424 -128 -73 -156 -365 -127 -558 -325 291 290 266 167 -355 -632 -493 -621 -308 -590 -430 -185 263 -426 243 123 -249 -210 -50 589 215 387 530 11 48 -252 -124 -908 -701 -609 220 200 -94 79 -651 -336 -86 -409 -64 500 657 576 368 795 287 514 799 262 -160 -109 187 -244 135 215 56 125 465 -123 312 -113 -711 -692 -325 26 148 673 93 -5 219 303 241 143 205 -366 -290 -470 -810