File name: Pandora226s1_HanoiCity-NCEM_20250125_L2Fit_fout2c3d20240301p1-8.txt File generation date: 20250228T175904.8Z Data description: Level 2 spectral fitting results file Data file version: fout2c3p1-8 Local principal investigator: Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 226 Spectrometer number: 1 Processing software version used: BlickP v1.8.74 Instrument operation file used: Pandora226_OF_v1d20220602.txt Instrument calibration file used: Pandora226s1_CF_v3d20240301.txt Level 1 file used: Pandora226s1_HanoiCity-NCEM_20250125_L1_smca1c3d20240301p1-8.txt Full location name: North Center for Environmental Monitoring, Ministry of Natural Resources and Env Short location name: HanoiCity-NCEM Country of location: Vietnam Location latitude [deg]: 21.0607 Location longitude [deg]: 105.7495 Location altitude [m]: 22 Local noon date: 20250125 Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are latency correction, matrix method stray light correction (replaced by simple method) Data caveats: OoB based on session 2 First and last pixel inside fitting window: 198 339 Nominal wavelengths inside fitting window [nm]: 305.1254 305.2666 305.4077 305.5488 305.6899 305.8310 305.9721 306.1131 306.2542 306.3952 306.5363 306.6773 306.8183 306.9593 307.1003 307.2412 307.3822 307.5231 307.6641 307.8050 307.9459 308.0868 308.2277 308.3686 308.5095 308.6503 308.7912 308.9320 309.0728 309.2137 309.3545 309.4952 309.6360 309.7768 309.9175 310.0583 310.1990 310.3397 310.4804 310.6211 310.7618 310.9025 311.0432 311.1838 311.3244 311.4651 311.6057 311.7463 311.8869 312.0275 312.1680 312.3086 312.4491 312.5897 312.7302 312.8707 313.0112 313.1517 313.2922 313.4326 313.5731 313.7135 313.8540 313.9944 314.1348 314.2752 314.4156 314.5559 314.6963 314.8366 314.9770 315.1173 315.2576 315.3979 315.5382 315.6785 315.8188 315.9590 316.0993 316.2395 316.3797 316.5199 316.6601 316.8003 316.9405 317.0806 317.2208 317.3609 317.5011 317.6412 317.7813 317.9214 318.0615 318.2015 318.3416 318.4816 318.6217 318.7617 318.9017 319.0417 319.1817 319.3216 319.4616 319.6016 319.7415 319.8814 320.0213 320.1612 320.3011 320.4410 320.5809 320.7207 320.8606 321.0004 321.1402 321.2801 321.4199 321.5596 321.6994 321.8392 321.9789 322.1187 322.2584 322.3981 322.5378 322.6775 322.8172 322.9569 323.0965 323.2362 323.3758 323.5154 323.6550 323.7946 323.9342 324.0738 324.2133 324.3529 324.4924 324.6319 324.7715 324.9110 --------------------------------------------------------------------------------------- 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 20250125T041337.3Z 9156.176127 316 1 52.06 2 42.23 160.20 65.03 223.26 0.00 1 0.00 1 0 17 1.048e-02 7.132e-03 8.851e-03 4.574e-03 1.476226e-01 2.250513e-03 1.620777e-03 -6.000000e+00 5.815550e-03 224.73 -2.00 3.13 -2.00 316.27 0.00e+00 -3.261431e-05 2.588021e-04 1.051932e-04 -6.000000e+00 2.686014e-04 290.73 -2.00 20.00 -2.00 315.43 0.00e+00 1.349 0.000 302.00 328.00 3 6.7153e+00 5.8087e-03 1.4938e-02 -6.0000e+00 1.4319e-02 3.2483e-02 6.5267e-03 6.7560e-03 -6.0000e+00 1.5559e-02 1.4966e-02 3.7710e-03 3.2999e-03 -6.0000e+00 9.3314e-03 -7.9332e-03 1.7861e-03 9.5600e-04 -6.0000e+00 4.0812e-03 1.4946e-04 -4.1489e-06 1.2501e-04 1.0945e-05 -6.0000e+00 2.6677e-04 9.2753e-03 0.0000e+00 11 9 0 11 16 0 99.98 25.57 0.56 0.00928 0.00924 31 5 1 5 0 1679.110 28.21 19.99 25.57 29.94 0.7 1022.47 -1199 -2444 -2037 -2818 -1980 -154 2105 -2941 272 -1699 1953 -1612 -1289 377 -1971 -1158 -345 -334 1183 2295 697 2032 1791 1675 749 1354 122 -1095 710 1318 572 1786 733 -71 -2508 -1185 249 -147 -1054 32 -1036 -1348 -549 -542 -609 -157 -641 -408 460 -464 327 661 1882 780 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83 -461 324 380 314 -700 -540 -963 -1016 SS 20250125T041832.4Z 9156.179541 319 1 51.73 2 41.86 161.85 65.81 224.06 0.00 1 0.00 1 0 17 1.271e-02 9.772e-03 1.078e-02 5.614e-03 1.575725e-01 2.777263e-03 1.725126e-03 -6.000000e+00 7.057307e-03 224.73 -2.00 3.13 -2.00 316.25 0.00e+00 9.750223e-04 3.151715e-04 3.965523e-05 -6.000000e+00 3.259471e-04 290.73 -2.00 20.00 -2.00 315.41 0.00e+00 1.341 0.000 302.00 328.00 3 6.9864e+00 7.1840e-03 1.5102e-02 -6.0000e+00 1.7376e-02 7.0615e-02 8.0527e-03 7.3047e-03 -6.0000e+00 1.8881e-02 -5.8116e-04 4.6437e-03 3.5412e-03 -6.0000e+00 1.1324e-02 -3.1063e-03 2.1962e-03 1.2247e-03 -6.0000e+00 4.9528e-03 1.1089e-04 -2.9178e-04 1.5434e-04 1.2259e-05 -6.0000e+00 3.2372e-04 9.1352e-03 0.0000e+00 12 9 8 11 16 0 99.93 25.57 0.69 0.00914 0.00694 24 4 1 5 0 2155.370 28.21 20.01 25.57 30.04 0.7 1023.32 -1996 402 -2869 -948 -3996 -1622 -2543 1549 -3046 -531 -1104 -91 2973 923 1533 957 -863 1579 58 103 2514 1665 -433 855 -904 -860 669 1624 -284 -1394 -502 369 -214 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