File name: Pandora218s1_Vientiane_20240924_L2Fit_fout2c2d20230601p1-8.txt File generation date: 20240925T021117.0Z Data description: Level 2 spectral fitting results file Data file version: fout2c2p1-8 Local principal investigator: Virasith Phomsouvanh Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 218 Spectrometer number: 1 Processing software version used: BlickP v1.8.60 Instrument operation file used: Pandora218_OF_v3d20220124.txt Instrument calibration file used: Pandora218s1_CF_v2d20230601.txt Level 1 file used: Pandora218s1_Vientiane_20240924_L1_smca1c2d20230601p1-8.txt Full location name: Laos Ministry of Natural Resources and Environment Short location name: Vientiane Country of location: Lao People's Democratic Republic Location latitude [deg]: 17.9979 Location longitude [deg]: 102.5821 Location altitude [m]: 169 Local noon date: 20240924 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 session based on session1 First and last pixel inside fitting window: 201 343 Nominal wavelengths inside fitting window [nm]: 305.0100 305.1514 305.2928 305.4341 305.5754 305.7167 305.8581 305.9993 306.1406 306.2819 306.4232 306.5644 306.7057 306.8469 306.9881 307.1293 307.2705 307.4117 307.5529 307.6940 307.8352 307.9763 308.1174 308.2586 308.3997 308.5408 308.6818 308.8229 308.9640 309.1050 309.2460 309.3871 309.5281 309.6691 309.8101 309.9510 310.0920 310.2330 310.3739 310.5148 310.6558 310.7967 310.9376 311.0785 311.2193 311.3602 311.5011 311.6419 311.7827 311.9235 312.0644 312.2051 312.3459 312.4867 312.6275 312.7682 312.9089 313.0497 313.1904 313.3311 313.4718 313.6125 313.7531 313.8938 314.0344 314.1751 314.3157 314.4563 314.5969 314.7375 314.8781 315.0186 315.1592 315.2997 315.4403 315.5808 315.7213 315.8618 316.0023 316.1427 316.2832 316.4236 316.5641 316.7045 316.8449 316.9853 317.1257 317.2661 317.4065 317.5468 317.6871 317.8275 317.9678 318.1081 318.2484 318.3887 318.5290 318.6692 318.8095 318.9497 319.0899 319.2302 319.3704 319.5106 319.6507 319.7909 319.9311 320.0712 320.2113 320.3515 320.4916 320.6317 320.7718 320.9118 321.0519 321.1920 321.3320 321.4720 321.6120 321.7520 321.8920 322.0320 322.1720 322.3119 322.4519 322.5918 322.7317 322.8717 323.0116 323.1514 323.2913 323.4312 323.5710 323.7109 323.8507 323.9905 324.1303 324.2701 324.4099 324.5497 324.6894 324.8292 324.9689 --------------------------------------------------------------------------------------- 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 100-242: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 243-385: 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 20240924T052207.3Z 9033.223695 473 1 3.36 2 19.33 195.65 92.95 300.90 0.00 1 0.00 1 0 17 9.375e-03 7.875e-03 3.627e-03 2.860e-03 1.280582e-01 1.554823e-03 1.414867e-03 -6.000000e+00 5.678468e-03 227.17 -2.00 3.11 -2.00 314.11 0.00e+00 1.340195e-04 1.191364e-04 2.777922e-05 -6.000000e+00 2.632670e-04 294.12 -2.00 20.00 -2.00 313.47 0.00e+00 1.060 0.000 302.00 328.00 3 4.3147e+00 3.9348e-03 1.1847e-02 -6.0000e+00 1.4018e-02 1.4711e-02 4.3352e-03 5.8675e-03 -6.0000e+00 1.5123e-02 5.0036e-04 2.5023e-03 2.8752e-03 -6.0000e+00 9.0809e-03 -2.7048e-03 1.0886e-03 8.0583e-04 -6.0000e+00 3.9039e-03 2.3393e-03 -1.0942e-03 8.9696e-05 1.3454e-05 -6.0000e+00 2.9139e-04 3.9492e-02 -2.4204e-04 12 9 1 12 1 1 97.24 23.67 0.38 0.03949 0.03127 3 13 1 5 0 839.150 26.00 20.00 23.67 34.32 12.3 992.33 -483 7 -1665 -1839 -2446 1683 135 1808 473 -1008 21 16 111 -1181 1211 -577 289 -1041 1826 207 1249 1891 1220 1707 83 1022 -381 -141 -103 1748 511 731 1704 -1949 -1656 -1508 -1211 -1287 -66 -1027 -1658 -672 -1111 -1067 -470 -175 -1244 -722 -1013 411 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391 236 -737 161 -46 74 -6 486 -42 -20 -866 -587 -1110 900000 SS 20240924T053020.3Z 9033.229402 479 1 2.63 2 19.96 201.47 94.56 301.56 0.00 1 0.00 1 0 17 7.876e-03 6.636e-03 2.542e-03 2.018e-03 1.282541e-01 1.097871e-03 1.420754e-03 -6.000000e+00 4.775254e-03 227.17 -2.00 3.11 -2.00 314.04 0.00e+00 1.859021e-04 8.394328e-05 2.764501e-05 -6.000000e+00 2.212460e-04 294.12 -2.00 20.00 -2.00 313.43 0.00e+00 1.064 0.000 302.00 328.00 3 3.5226e+00 2.7810e-03 1.1893e-02 -6.0000e+00 1.1788e-02 1.4528e-02 3.0636e-03 5.8912e-03 -6.0000e+00 1.2713e-02 3.1880e-05 1.7662e-03 2.8846e-03 -6.0000e+00 7.6339e-03 -3.3267e-03 7.6750e-04 8.0976e-04 -6.0000e+00 3.2863e-03 5.1452e-03 1.2215e-04 6.3544e-05 1.3374e-05 -6.0000e+00 2.4473e-04 3.4457e-02 -1.2704e-04 12 9 1 12 1 1 62.23 23.67 0.41 0.03446 0.03538 6 28 1 5 0 374.630 26.00 19.98 23.67 35.17 12.3 1000.27 -500 -104 -959 -2087 -2191 -273 -787 813 758 -258 -1531 -116 618 612 539 261 14 837 842 1032 977 317 1420 735 208 885 63 -635 149 1045 1178 1210 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225 -4 335 493 628 500 458 81 -318 362 313 540 433 123 645 1315 578 316 297 -632 -317 -90 69 135 -131 -57 -137 -378 -693 -924 900000 SS 20240924T053441.6Z 9033.232426 482 1 8.82 2 20.36 204.41 95.40 301.92 0.00 1 0.00 1 0 17 8.081e-03 6.754e-03 2.701e-03 2.107e-03 1.285087e-01 1.146998e-03 1.401187e-03 -6.000000e+00 4.900442e-03 227.17 -2.00 3.11 -2.00 314.15 0.00e+00 3.032311e-04 8.910513e-05 1.872836e-05 -6.000000e+00 2.269978e-04 294.12 -2.00 20.00 -2.00 313.52 0.00e+00 1.066 0.000 302.00 328.00 3 4.7872e+00 2.9087e-03 1.1902e-02 -6.0000e+00 1.2097e-02 2.5501e-02 3.2067e-03 5.8698e-03 -6.0000e+00 1.3045e-02 7.7439e-04 1.8489e-03 2.8606e-03 -6.0000e+00 7.8336e-03 -3.7166e-03 8.0431e-04 8.1034e-04 -6.0000e+00 3.3730e-03 1.4418e-03 4.2672e-04 6.6382e-05 1.2928e-05 -6.0000e+00 2.5108e-04 3.4262e-02 -7.4831e-05 12 9 1 12 1 1 99.38 23.67 0.29 0.03426 0.03747 7 10 1 5 0 1102.420 26.00 19.99 23.67 35.84 12.2 1003.79 -70 -379 -973 -2617 -946 -840 -953 1559 894 -909 -1411 184 -547 -68 871 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