File name: Pandora235s1_Seoul-KU_20250116_L2Fit_fout2c8d20240408p1-8.txt File generation date: 20250225T143100.4Z Data description: Level 2 spectral fitting results file Data file version: fout2c8p1-8 Local principal investigator: ---- Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 235 Spectrometer number: 1 Processing software version used: BlickP v1.8.74 Instrument operation file used: Pandora235_OF_v4d20230606.txt Instrument calibration file used: Pandora235s1_CF_v8d20240408.txt Level 1 file used: Pandora235s1_Seoul-KU_20250116_L1_smca1c8d20240408p1-8.txt Full location name: Korea University, Seoul Campus Short location name: Seoul-KU Country of location: Korea, Republic of Location latitude [deg]: 37.5855 Location longitude [deg]: 127.0257 Location altitude [m]: 90 Local noon date: 20250116 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: 199 341 Nominal wavelengths inside fitting window [nm]: 305.0046 305.1454 305.2861 305.4269 305.5676 305.7083 305.8490 305.9898 306.1304 306.2711 306.4118 306.5525 306.6931 306.8338 306.9744 307.1150 307.2556 307.3962 307.5368 307.6774 307.8180 307.9585 308.0991 308.2396 308.3801 308.5207 308.6612 308.8017 308.9422 309.0826 309.2231 309.3635 309.5040 309.6444 309.7848 309.9253 310.0657 310.2060 310.3464 310.4868 310.6272 310.7675 310.9078 311.0482 311.1885 311.3288 311.4691 311.6094 311.7496 311.8899 312.0301 312.1704 312.3106 312.4508 312.5910 312.7312 312.8714 313.0116 313.1518 313.2919 313.4321 313.5722 313.7123 313.8524 313.9925 314.1326 314.2727 314.4128 314.5528 314.6929 314.8329 314.9729 315.1129 315.2529 315.3929 315.5329 315.6729 315.8128 315.9528 316.0927 316.2326 316.3725 316.5125 316.6523 316.7922 316.9321 317.0720 317.2118 317.3516 317.4915 317.6313 317.7711 317.9109 318.0507 318.1904 318.3302 318.4699 318.6097 318.7494 318.8891 319.0288 319.1685 319.3082 319.4478 319.5875 319.7272 319.8668 320.0064 320.1460 320.2856 320.4252 320.5648 320.7044 320.8439 320.9835 321.1230 321.2625 321.4021 321.5416 321.6810 321.8205 321.9600 322.0995 322.2389 322.3783 322.5178 322.6572 322.7966 322.9360 323.0753 323.2147 323.3541 323.4934 323.6327 323.7721 323.9114 324.0507 324.1900 324.3292 324.4685 324.6078 324.7470 324.8862 --------------------------------------------------------------------------------------- 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: Spectrometer control temperature [°C], 999=no temperature signal Column 95: Auxiliary spectrometer temperature [°C], 999=no temperature signal Column 96: Temperature in head sensor [°C], 999=no temperature signal Column 97: Temperature at electronics board 1 [°C], 999=no temperature signal Column 98: Temperature at electronics board 2 [°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 101-243: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 244-386: 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 20250116T041615.8Z 9147.177960 408 1 3.14 2 59.04 189.43 123.56 337.25 0.00 1 0.00 1 0 17 2.972e-02 1.062e-02 1.610e-02 6.265e-03 2.963716e-01 3.220672e-03 3.536956e-03 -6.000000e+00 1.730327e-02 224.06 -2.00 3.44 -2.00 316.69 0.00e+00 8.458786e-04 3.973227e-04 7.065206e-05 -6.000000e+00 7.580008e-04 277.75 -2.00 20.00 -2.00 316.08 0.00e+00 1.936 0.000 302.00 328.00 3 4.2334e+00 8.3450e-03 2.4127e-02 -6.0000e+00 4.2679e-02 -1.7704e-02 9.3310e-03 1.4665e-02 -6.0000e+00 4.6319e-02 7.3308e-03 5.5204e-03 7.3149e-03 -6.0000e+00 2.7605e-02 -5.4742e-03 2.6716e-03 2.1740e-03 -6.0000e+00 1.1786e-02 7.8022e-04 -5.7056e-04 1.8644e-04 2.6876e-05 -6.0000e+00 8.6435e-04 -2.2692e-03 0.0000e+00 12 9 9 12 1 1 999.00 23.82 0.52 -0.00227 -0.00656 1 3 2 8 0 1568.820 19.98 23.82 10.45 32.25 32.50 1.6 871.35 2390 1836 -5558 -14380 -5169 6908 -20162 -1707 2273 -3066 -252 -3000 -9647 3777 7164 638 1865 3007 -2261 5458 -717 1930 -714 -492 2397 1266 358 3629 -889 -839 -330 6503 3191 1669 -531 -5479 191 -453 -2203 2487 -1441 -240 -529 -1849 -1267 951 1605 -2235 -1821 2 -498 -397 1158 586 2205 -373 641 -760 -533 141 -728 308 3724 3020 2029 157 -210 -860 -1440 3378 -253 367 412 -153 -272 -504 458 245 -621 -15 -2156 -2200 -2620 -2500 -1069 -713 309 -186 257 1330 474 869 -140 -840 391 -824 -44 1748 465 85 -1344 -776 -661 587 482 -1289 -116 -1251 182 -173 52 1095 684 556 170 356 147 415 -474 202 -42 204 471 -122 59 476 -172 594 433 -492 -143 129 -211 229 -21 -435 315 872 191 75 -283 -1037 -518 291 255 -880 -2444 -735 810 -3136 -242 346 -531 -44 -543 -1871 738 1569 169 526 813 -675 1567 -225 594 -228 -163 819 458 133 1267 -306 -280 -113 2268 1164 656 -210 -2185 75 -202 -1111 1328 -850 -150 -344 -1178 -807 593 1046 -1405 -1190 2 -315 -268 823 421 1628 -290 504 -579 -421 109 -577 242 3074 2581 1814 138 -181 -715 -1232 2895 -239 351 402 -147 -259 -459 391 196 -502 -13 -1993 -2174 -2714 -2737 -1174 -837 366 -231 311 1623 551 962 -149 -891 418 -929 -52 2197 597 112 -1726 -954 -782 702 589 -1652 -154 -1703 248 -243 77 1628 1011 808 237 478 192 551 -649 293 -61 298 672 -175 80 638 -230 769 585 -697 -207 189 -317 342 -32 -705 510 1437 321 124 -458 -1675 -805 SS 20250116T042109.7Z 9147.181362 411 1 14.32 2 59.21 190.75 123.93 338.53 0.00 1 0.00 1 0 17 1.280e-02 6.995e-03 1.980e-03 8.998e-04 2.968982e-01 4.622557e-04 3.558960e-03 -6.000000e+00 7.456346e-03 224.06 -2.00 3.44 -2.00 316.39 0.00e+00 6.850827e-04 5.336780e-05 9.511487e-05 -6.000000e+00 3.266058e-04 277.75 -2.00 20.00 -2.00 315.80 0.00e+00 1.946 0.000 302.00 328.00 3 2.6043e+00 1.1920e-03 2.4210e-02 -6.0000e+00 1.8391e-02 -2.0940e-02 1.3327e-03 1.4674e-02 -6.0000e+00 1.9959e-02 2.1352e-03 7.7782e-04 7.3180e-03 -6.0000e+00 1.1895e-02 -4.3282e-03 3.6848e-04 2.1367e-03 -6.0000e+00 5.0795e-03 3.9602e-03 -4.7911e-04 2.6698e-05 2.7137e-05 -6.0000e+00 3.7242e-04 -3.2124e-03 0.0000e+00 12 9 1 12 1 1 98.21 23.82 0.49 -0.00321 -0.00681 52 20 4 8 0 270.120 19.99 23.82 10.80 32.25 32.25 1.7 874.41 470 -197 -2225 -5241 -3271 -4638 -3386 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-2490 -1182 -672 -455 213 710 634 86 434 -124 58 288 62 361 1308 615 -301 -521 -687 -997 -602 -611 -1523 -990 -771 -172 1028 1127 1064 912 537 179 11 340 278 145 231 -165 36 689 559 684 759 152 656 735 269 31 -360 -372 -356 -95 -171 -258 497 150 -179 -171 -737 -1031 SS 20250116T042643.3Z 9147.185223 414 1 43.34 2 59.43 192.24 124.32 340.00 0.00 1 0.00 1 0 17 2.146e-02 7.900e-03 2.988e-03 1.148e-03 2.978170e-01 5.905576e-04 3.550480e-03 -6.000000e+00 1.250115e-02 224.06 -2.00 3.44 -2.00 316.77 0.00e+00 6.443199e-04 7.459164e-05 1.287008e-04 -6.000000e+00 5.486221e-04 277.75 -2.00 20.00 -2.00 316.17 0.00e+00 1.958 0.000 302.00 328.00 3 4.1132e+00 1.5317e-03 2.4334e-02 -6.0000e+00 3.0836e-02 -1.6027e-02 1.7134e-03 1.4716e-02 -6.0000e+00 3.3477e-02 6.7412e-03 1.0171e-03 7.3421e-03 -6.0000e+00 1.9937e-02 -6.1928e-03 4.9751e-04 2.1466e-03 -6.0000e+00 8.5708e-03 8.6628e-04 -1.1729e-04 3.4283e-05 2.6210e-05 -6.0000e+00 6.2817e-04 -5.6092e-03 0.0000e+00 12 9 1 12 1 1 99.99 23.80 0.57 -0.00561 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