File name: Pandora118s1_Cabauw_20250215_L2Fit_fout2c7d20210820p1-8.txt File generation date: 20250215T235711.9Z Data description: Level 2 spectral fitting results file Data file version: fout2c7p1-8 Local principal investigator: Ankie Piters Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 118 Spectrometer number: 1 Processing software version used: BlickP v1.8.70 Instrument operation file used: Pandora118_OF_v3d20200505.txt Instrument calibration file used: Pandora118s1_CF_v7d20210820.txt Level 1 file used: Pandora118s1_Cabauw_20250215_L1_smca1c7d20210820p1-8.txt Full location name: Cabauw Short location name: Cabauw Country of location: Netherlands Location latitude [deg]: 51.9704 Location longitude [deg]: 4.9262 Location altitude [m]: 0 Local noon date: 20250215 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: newDate as OF is out there First and last pixel inside fitting window: 234 375 Nominal wavelengths inside fitting window [nm]: 305.0994 305.2405 305.3816 305.5226 305.6636 305.8047 305.9457 306.0867 306.2277 306.3686 306.5096 306.6506 306.7915 306.9324 307.0734 307.2143 307.3552 307.4961 307.6369 307.7778 307.9186 308.0595 308.2003 308.3411 308.4819 308.6227 308.7635 308.9043 309.0451 309.1858 309.3266 309.4673 309.6080 309.7487 309.8894 310.0301 310.1708 310.3114 310.4521 310.5927 310.7333 310.8739 311.0145 311.1551 311.2957 311.4363 311.5769 311.7174 311.8579 311.9985 312.1390 312.2795 312.4200 312.5604 312.7009 312.8414 312.9818 313.1222 313.2627 313.4031 313.5435 313.6839 313.8242 313.9646 314.1050 314.2453 314.3856 314.5259 314.6663 314.8065 314.9468 315.0871 315.2274 315.3676 315.5079 315.6481 315.7883 315.9285 316.0687 316.2089 316.3490 316.4892 316.6293 316.7695 316.9096 317.0497 317.1898 317.3299 317.4700 317.6101 317.7501 317.8902 318.0302 318.1702 318.3102 318.4502 318.5902 318.7302 318.8701 319.0101 319.1500 319.2900 319.4299 319.5698 319.7097 319.8496 319.9894 320.1293 320.2691 320.4090 320.5488 320.6886 320.8284 320.9682 321.1080 321.2477 321.3875 321.5272 321.6670 321.8067 321.9464 322.0861 322.2258 322.3654 322.5051 322.6448 322.7844 322.9240 323.0636 323.2032 323.3428 323.4824 323.6220 323.7615 323.9011 324.0406 324.1801 324.3197 324.4592 324.5986 324.7381 324.8776 --------------------------------------------------------------------------------------- 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: Ozone slant column amount [moles per square meter], -9e99=fitting not successful Column 23: 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 24: 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 25: 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 26: 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 27: Ozone effective temperature [K] Column 28: 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 29: 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 30: 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 31: Effective ozone fitting wavelength [nm], -9=fitting not successful Column 32: 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 33: Sulfur dioxide slant column amount [moles per square meter], -9e99=fitting not successful Column 34: Independent uncertainty of sulfur 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 sulfur 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 sulfur 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 sulfur 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: Sulfur dioxide effective temperature [K] Column 39: Independent uncertainty of sulfur 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 sulfur 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 sulfur 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 sulfur dioxide fitting wavelength [nm], -9=fitting not successful Column 43: Diffuse correction applied before fitting at effective fitting wavelength for sulfur dioxide [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 44: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting Column 45: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting Column 46: Lower limit used for wavelength scaling [nm] Column 47: Upper limit used for wavelength scaling [nm] Column 48: Order of smoothing polynomial Column 49: Smoothing polynomial coefficient, order 0 Column 50: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 51: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 52: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 53: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 54: Smoothing polynomial coefficient, order 1 Column 55: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 56: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 57: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 58: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 59: Smoothing polynomial coefficient, order 2 Column 60: Independent uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 61: Structured uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 62: Common uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 63: rms-based uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 64: Smoothing polynomial coefficient, order 3 Column 65: Independent uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 66: Structured uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 67: Common uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 68: rms-based uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 69: Mean value of measured data inside fitting window [same units as measurements] Column 70: Wavelength change polynomial coefficient, order 0 Column 71: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 72: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 73: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 74: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 75: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination Column 76: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination Column 77: 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 78: 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 79: 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 80: 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 81: 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 82: 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 83: Atmospheric variability [%], 999=no atmospheric variability was determined Column 84: Wavelength effective temperature [°C], 999=no effective temperature given Column 85: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher) Column 86: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination Column 87: Retrieved total wavelength shift [nm], -9=no wavelength change fitting Column 88: Number of bright count cycles Column 89: Number of dark count cycles Column 90: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions Column 91: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions Column 92: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal Column 93: Integration time [ms] Column 94: Temperature at electronics board [°C], 999=no temperature signal Column 95: Spectrometer control temperature [°C], 999=no temperature signal Column 96: Auxiliary spectrometer temperature [°C], 999=no temperature signal Column 97: Temperature in head sensor [°C], 999=no temperature signal Column 98: Humidity in head sensor [%], -9=no humidity signal Column 99: Pressure in head sensor [hPa], -9=no pressure signal Columns 100-241: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 242-383: 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 --------------------------------------------------------------------------------------- SS 20250215T124013.2Z 9177.527931 445 1 49.66 2 65.21 192.33 126.65 335.59 0.00 1 0.00 1 0 17 4.018e-02 8.091e-03 1.176e-02 2.649e-03 3.525339e-01 1.315861e-03 4.655224e-03 -6.000000e+00 2.255334e-02 223.68 -2.00 3.84 -2.00 317.84 0.00e+00 1.119922e-03 2.104145e-04 1.464130e-04 -6.000000e+00 9.480270e-04 267.06 -2.00 20.00 -2.00 317.41 0.00e+00 2.369 0.000 302.00 328.00 3 5.0107e+00 3.4720e-03 3.0609e-02 -6.0000e+00 5.5829e-02 7.3646e-02 3.9122e-03 1.9512e-02 -6.0000e+00 6.0897e-02 -3.9171e-02 2.5441e-03 9.7948e-03 -6.0000e+00 3.6047e-02 9.4483e-03 1.3285e-03 2.9919e-03 -6.0000e+00 1.5426e-02 2.1096e-04 -5.9780e-04 7.4172e-05 3.1664e-05 -6.0000e+00 1.0726e-03 3.3739e-02 0.0000e+00 11 9 0 11 32 0 95.99 20.46 0.17 0.03374 0.02925 14 3 1 5 0 3546.750 20.46 15.01 16.32 10.78 38.5 1033.83 -12989 -8209 -3413 -23814 -18806 -6797 15469 7593 5243 4098 -14245 -6536 -1668 -801 336 6420 -1932 2123 1380 3564 -1343 2398 278 -988 -8452 -1151 2902 -1588 2645 -7109 5832 646 -3548 -2801 -1820 -1477 -1244 2199 340 -489 -532 361 -931 -603 4709 711 -580 376 -91 388 1988 4478 1128 52 -397 -43 817 69 1285 1930 608 1282 1364 446 -150 -984 -758 -673 293 -244 -426 -153 551 -99 156 1188 -709 -586 -679 -1576 -1329 -1711 -1541 -1011 -1126 63 -522 -50 225 135 632 150 805 271 361 1161 1256 511 -350 -404 -191 -345 23 -527 -1267 -353 -620 -1139 193 -28 146 53 92 322 541 314 674 94 0 -326 240 423 39 116 298 121 1766 1050 516 -266 -418 -20 209 -238 63 -177 337 -155 -520 -102 -410 -309 -1025 -664 -263 -2019 -1398 -459 928 550 423 342 -1421 -670 -190 -106 50 986 -336 374 255 666 -262 453 56 -214 -2043 -268 635 -340 530 -1638 1311 167 -1021 -784 -478 -401 -378 755 138 -223 -256 178 -474 -307 2305 358 -293 188 -46 201 1088 2535 688 33 -260 -29 543 45 827 1246 415 932 1059 360 -118 -738 -554 -502 237 -215 -392 -142 498 -86 126 882 -508 -426 -537 -1383 -1263 -1733 -1614 -1097 -1284 74 -632 -61 270 155 682 153 794 275 393 1358 1582 685 -476 -532 -239 -407 27 -649 -1637 -466 -849 -1617 284 -43 231 83 140 465 745 428 932 136 -1 -501 365 632 57 164 411 162 2312 1441 748 -405 -655 -32 338 -399 110 -313 601 -280 -927 -177 -695 -513 SS 20250215T133201.7Z 9177.563908 470 1 49.55 2 67.81 205.84 129.06 351.13 0.00 1 0.00 1 0 25 4.719e-02 7.818e-03 1.733e-02 2.640e-03 3.842286e-01 1.312584e-03 5.038014e-03 -6.000000e+00 2.648940e-02 223.68 -2.00 3.84 -2.00 318.40 0.00e+00 5.007721e-04 2.458027e-04 1.365519e-04 -6.000000e+00 1.113243e-03 267.07 -2.00 20.00 -2.00 317.97 0.00e+00 2.626 0.000 302.00 328.00 3 4.6001e+00 3.5017e-03 3.3687e-02 -6.0000e+00 6.5573e-02 7.3158e-02 3.9721e-03 2.1253e-02 -6.0000e+00 7.1521e-02 -2.8405e-02 2.7881e-03 1.0745e-02 -6.0000e+00 4.2335e-02 1.9125e-03 1.4892e-03 3.1956e-03 -6.0000e+00 1.8122e-02 2.3799e-04 -4.0182e-04 7.4247e-05 3.3890e-05 -6.0000e+00 1.2594e-03 3.2129e-02 0.0000e+00 11 8 0 10 0 0 99.79 20.46 0.01 0.03213 0.02911 28 6 1 5 0 1769.420 20.46 15.00 16.36 10.67 38.5 1033.39 -9662 -4251 106 -34189 22683 -12142 10606 3160 6170 10621 -16156 -3746 -937 116 1626 1552 -1680 2516 1254 75 -4916 605 -21 -404 -7343 -12981 2513 -1123 2872 -7252 6048 1065 -2553 -2469 -4448 -1249 -2054 745 517 -31 -319 -384 -935 -795 4955 478 1106 -570 537 -1142 1739 4769 702 493 20 729 1284 526 972 2293 1482 1259 2032 518 -570 -698 -678 -325 347 508 -344 66 313 -517 587 472 37 -362 -576 -1919 -1118 -1985 -1897 -1390 -969 113 -618 -221 118 461 507 282 1055 391 650 859 1250 221 -72 -358 -259 -547 -18 -766 -1210 -356 -692 -785 204 133 -213 100 192 324 426 553 234 424 11 -814 141 246 257 934 -25 158 1303 662 375 228 -91 -218 138 -260 180 -140 316 -272 -443 -275 -450 3 -484 -218 5 -2123 772 -582 454 163 339 577 -1140 -262 -75 11 173 180 -212 324 170 11 -733 86 -3 -66 -1340 -2571 422 -183 441 -1298 1062 216 -579 -551 -954 -272 -508 211 174 -12 -129 -161 -402 -343 2044 205 469 -244 230 -519 830 2363 381 279 11 432 764 310 561 1321 901 828 1431 384 -414 -481 -457 -224 261 419 -299 58 268 -423 442 327 25 -245 -429 -1605 -1016 -1943 -1930 -1471 -1076 130 -732 -264 139 514 532 281 1008 388 695 998 1574 298 -98 -473 -322 -642 -21 -939 -1557 -469 -948 -1119 303 208 -344 160 298 477 598 765 331 624 17 -1284 219 376 383 1339 -35 214 1733 929 560 355 -147 -358 231 -455 327 -259 589 -513 -826 -499 -794 5