File name: Pandora289s1_DeBilt_20260206_L2Fit_fout2c31d20250921p1-8.txt
File generation date: 20260624T153904.2Z
Data description: Level 2 spectral fitting results file
Data file version: fout2c31p1-8
Local principal investigator: Ankie Piters
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 289
Spectrometer number: 1
Processing software version used: BlickP v1.8.88
Instrument operation file used: Pandora289_OF_v3d20240910.txt
Instrument calibration file used: Pandora289s1_CF_v31d20250921.txt
Level 1 file used: Pandora289s1_DeBilt_20260206_L1_smca1c31d20250921p1-8.txt
Full location name: Royal Netherlands Meteorological Institute (KNMI), De Bilt
Short location name: DeBilt
Country of location: Netherlands
Location latitude [deg]: 52.1012
Location longitude [deg]: 5.1783
Location altitude [m]: 20
Local noon date: 20260206
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: 198 341
Nominal wavelengths inside fitting window [nm]: 305.0120 305.1523 305.2926 305.4330 305.5733 305.7136 305.8539 305.9942 306.1345 306.2747 306.4150 306.5552 306.6955 306.8357 306.9759 307.1161 307.2563 307.3964 307.5366 307.6768 307.8169 307.9570 308.0971 308.2372 308.3773 308.5174 308.6575 308.7976 308.9376 309.0777 309.2177 309.3577 309.4977 309.6377 309.7777 309.9176 310.0576 310.1976 310.3375 310.4774 310.6173 310.7572 310.8971 311.0370 311.1769 311.3167 311.4566 311.5964 311.7363 311.8761 312.0159 312.1557 312.2954 312.4352 312.5750 312.7147 312.8544 312.9942 313.1339 313.2736 313.4133 313.5529 313.6926 313.8323 313.9719 314.1115 314.2512 314.3908 314.5304 314.6700 314.8095 314.9491 315.0886 315.2282 315.3677 315.5072 315.6467 315.7862 315.9257 316.0652 316.2046 316.3441 316.4835 316.6230 316.7624 316.9018 317.0412 317.1805 317.3199 317.4593 317.5986 317.7380 317.8773 318.0166 318.1559 318.2952 318.4345 318.5737 318.7130 318.8522 318.9915 319.1307 319.2699 319.4091 319.5483 319.6874 319.8266 319.9657 320.1049 320.2440 320.3831 320.5222 320.6613 320.8004 320.9395 321.0785 321.2176 321.3566 321.4956 321.6347 321.7737 321.9126 322.0516 322.1906 322.3295 322.4685 322.6074 322.7463 322.8852 323.0241 323.1630 323.3019 323.4408 323.5796 323.7184 323.8573 323.9961 324.1349 324.2737 324.4125 324.5512 324.6900 324.8287 324.9675
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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: 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 100-243: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting
Columns 244-387: 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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SU 20260206T122633.7Z 9533.518446 2359 1 54.67 2 68.00 188.63 124.60 305.07 0.00 1 0.00 1 0 17 1.020e-01 1.182e-02 2.059e-02 1.913e-03 4.655158e-01 9.497221e-04 6.005114e-03 -6.000000e+00 5.735486e-02 223.08 -2.00 3.84 -2.00 318.75 0.00e+00 1.947189e-03 1.956268e-04 1.957933e-04 -6.000000e+00 2.352137e-03 266.73 -2.00 20.00 -2.00 318.45 0.00e+00 2.647 0.000 302.00 328.00 3 4.6312e+00 2.5472e-03 3.6764e-02 -6.0000e+00 1.4206e-01 -2.5384e-03 2.9024e-03 2.5478e-02 -6.0000e+00 1.5544e-01 -9.9255e-03 2.2142e-03 1.2990e-02 -6.0000e+00 9.1771e-02 8.4049e-03 1.2006e-03 3.8539e-03 -6.0000e+00 3.8246e-02 2.0609e-04 -2.5503e-04 5.3391e-05 4.0541e-05 -6.0000e+00 2.7613e-03 -3.7243e-03 0.0000e+00 12 9 8 11 8 0 99.97 24.21 0.16 -0.00372 -0.00564 43 4 1 5 0 1271.270 33.75 20.01 24.21 11.00 0.0 931.94 -50091 -17988 -20029 13372 914 -42947 -51072 32866 -39956 -5469 8738 -2163 -15548 30848 12196 -12628 -18883 -2707 19730 -391 5279 2582 -17589 -8171 -2683 105 -3330 10482 -3477 -11559 4476 -87 11297 3556 -7086 -8728 6640 -3698 -7191 3328 1284 -1963 -4058 1902 -2446 2824 -3414 712 2134 1573 -159 1607 5392 3199 -613 1769 2990 528 2023 -454 790 1525 4924 3092 3730 1589 -931 -2810 -1095 1310 1536 173 -819 967 385 -325 -2340 -2927 -4389 -656 -757 -922 -808 -2675 -2224 -1196 -21 800 201 850 417 1178 -1186 25 -748 -380 -258 -66 775 663 -71 -759 -1844 -579 -445 -1007 -1281 -404 -875 473 965 875 1375 1351 1001 -770 -514 -199 -135 379 395 38 -45 191 67 1434 519 -647 -91 709 583 792 -750 -641 -334 -157 -670 -5 378 354 396 104 -1060 -351 -1730 -537 -662 314 23 -1539 -2011 632 -1827 -192 276 -80 -757 1163 683 -1068 -1903 -252 1569 -40 533 271 -2275 -1008 -341 14 -465 1246 -461 -1657 583 -14 1834 615 -1366 -1648 1094 -772 -1903 950 391 -675 -1502 682 -929 1029 -1336 270 805 612 -67 724 2370 1547 -324 953 1643 301 1119 -252 433 876 2808 1994 2561 1118 -637 -1877 -747 914 1205 139 -679 820 309 -240 -1701 -2001 -3097 -464 -621 -811 -785 -2674 -2341 -1251 -23 919 236 975 459 1269 -1202 24 -738 -412 -300 -82 1005 911 -97 -953 -2224 -697 -525 -1280 -1643 -537 -1234 678 1439 1396 2138 2143 1500 -1147 -732 -284 -201 572 620 59 -69 293 99 2020 736 -895 -130 1049 910 1259 -1252 -1110 -583 -289 -1248 -9 720 672 731 190 -1844 -597
SU 20260206T123220.9Z 9533.522464 2370 1 54.53 2 68.15 190.12 125.32 306.50 0.00 1 0.00 1 0 25 2.085e-01 1.444e-02 5.859e-02 2.381e-03 4.686262e-01 1.181886e-03 6.046195e-03 -6.000000e+00 1.171233e-01 223.08 -2.00 3.84 -2.00 318.86 0.00e+00 2.460774e-03 2.510405e-04 1.964291e-04 -6.000000e+00 4.805745e-03 266.73 -2.00 20.00 -2.00 318.56 0.00e+00 2.663 0.000 302.00 328.00 3 4.9927e+00 3.1734e-03 3.6987e-02 -6.0000e+00 2.9010e-01 1.6649e-02 3.6248e-03 2.5633e-02 -6.0000e+00 3.1746e-01 -2.0503e-02 2.8026e-03 1.3077e-02 -6.0000e+00 1.8743e-01 1.3041e-02 1.5221e-03 3.8796e-03 -6.0000e+00 7.8069e-02 1.3928e-04 -9.9930e-04 6.5814e-05 4.0498e-05 -6.0000e+00 5.6421e-03 -3.5118e-04 0.0000e+00 12 9 8 11 8 0 99.97 24.22 0.03 -0.00035 -0.00786 24 2 1 5 0 2271.980 33.75 19.96 24.22 11.15 0.0 932.37 -60810 -15065 -10871 32844 64498 -43880 -39004 187060 -38136 35261 23224 2076 -10462 59883 32775 -16960 -25756 -4726 23927 2995 4870 -3210 -20883 -8050 -1491 2404 -4013 15047 -2749 -13534 6733 -1551 17184 6721 -7055 -13199 10017 -3878 -9040 4175 3964 -4168 -5907 1620 -3148 4194 -3321 -261 1823 1587 -1141 1360 7585 3823 -1613 2049 4541 -348 3120 -1820 670 1927 7023 3740 3861 1796 -739 -3595 -424 777 2194 -429 -1642 1080 637 -33 -2852 -3122 -5803 -691 -590 -567 -532 -3481 -2450 -1724 432 157 430 990 855 1622 -1861 804 -1058 -504 -321 123 718 805 -38 -981 -2044 -717 -489 -945 -1043 -232 -1041 560 767 1390 1515 1716 1457 -954 -1037 -278 -372 423 977 -116 -222 65 114 1208 507 -1023 -360 504 347 542 -873 -484 -333 -87 -959 386 588 262 709 29 -1042 -395 -2260 -423 -318 618 824 -1539 -1313 739 -1638 786 604 70 -462 1613 1431 -1438 -2674 -431 1756 287 475 -343 -2677 -948 -178 296 -536 1625 -345 -1886 818 -237 2514 1078 -1302 -2494 1675 -772 -2315 1121 1216 -1389 -2113 553 -1144 1433 -1236 -95 657 588 -460 584 3360 1893 -820 1045 2331 -189 1618 -969 348 1044 3999 2446 2511 1198 -480 -2299 -272 553 1735 -350 -1386 867 518 -25 -1975 -2025 -3928 -495 -457 -502 -488 -3527 -2599 -1815 475 182 505 1136 940 1749 -1910 762 -1052 -550 -374 152 927 1101 -51 -1301 -2471 -866 -575 -1196 -1326 -306 -1459 795 1189 2184 2436 2688 2262 -1414 -1472 -394 -552 662 1508 -182 -336 99 167 1779 715 -1411 -509 738 537 892 -1439 -824 -597 -158 -1834 745 1097 489 1335 52 -1863 -688