File name: Pandora91s1_Kigali_20250621_L2Fit_fout2c2d20250101p1-8.txt File generation date: 20250828T082149.0Z Data description: Level 2 spectral fitting results file Data file version: fout2c2p1-8 Local principal investigator: Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 91 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora91_OF_v1d20241022.txt Instrument calibration file used: Pandora91s1_CF_v2d20250101.txt Level 1 file used: Pandora91s1_Kigali_20250621_L1_smca1c2d20250101p1-8.txt Full location name: US Embassy of Rwanda Short location name: Kigali Country of location: Rwanda Location latitude [deg]: -1.9363 Location longitude [deg]: 30.0779 Location altitude [m]: 1495 Local noon date: 20250621 Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are dark map for dark correction (replaced by immediate dark method), latency correction, matrix method stray light correction (replaced by simple method) Data caveats: OOB session based on clearance session 1 First and last pixel inside fitting window: 194 336 Nominal wavelengths inside fitting window [nm]: 305.0653 305.2061 305.3469 305.4877 305.6285 305.7693 305.9101 306.0508 306.1916 306.3323 306.4730 306.6138 306.7545 306.8951 307.0358 307.1765 307.3172 307.4578 307.5984 307.7391 307.8797 308.0203 308.1609 308.3014 308.4420 308.5826 308.7231 308.8636 309.0042 309.1447 309.2852 309.4257 309.5661 309.7066 309.8471 309.9875 310.1279 310.2684 310.4088 310.5492 310.6896 310.8299 310.9703 311.1107 311.2510 311.3913 311.5317 311.6720 311.8123 311.9526 312.0928 312.2331 312.3733 312.5136 312.6538 312.7940 312.9342 313.0744 313.2146 313.3548 313.4950 313.6351 313.7753 313.9154 314.0555 314.1956 314.3357 314.4758 314.6159 314.7559 314.8960 315.0360 315.1760 315.3160 315.4560 315.5960 315.7360 315.8760 316.0159 316.1559 316.2958 316.4358 316.5757 316.7156 316.8555 316.9953 317.1352 317.2751 317.4149 317.5547 317.6946 317.8344 317.9742 318.1140 318.2537 318.3935 318.5332 318.6730 318.8127 318.9524 319.0921 319.2318 319.3715 319.5112 319.6509 319.7905 319.9301 320.0698 320.2094 320.3490 320.4886 320.6282 320.7677 320.9073 321.0468 321.1864 321.3259 321.4654 321.6049 321.7444 321.8839 322.0233 322.1628 322.3022 322.4417 322.5811 322.7205 322.8599 322.9993 323.1387 323.2780 323.4174 323.5567 323.6960 323.8353 323.9747 324.1139 324.2532 324.3925 324.5318 324.6710 324.8102 324.9495 --------------------------------------------------------------------------------------- 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 20250621T141354.6Z 9303.592994 13 1 30.08 2 66.31 296.70 119.68 288.83 0.00 1 0.00 1 0 17 1.268e-02 7.178e-03 2.442e-03 8.854e-04 2.772699e-01 4.396967e-04 2.897500e-03 -6.000000e+00 7.131458e-03 226.88 -2.00 3.05 -2.00 316.97 0.00e+00 6.216333e-04 5.939715e-05 1.585072e-04 -6.000000e+00 3.196177e-04 285.77 -2.00 20.00 -2.00 316.19 0.00e+00 2.471 0.000 302.00 328.00 3 2.8262e+00 1.1533e-03 2.4004e-02 -6.0000e+00 1.7671e-02 -4.8435e-02 1.2962e-03 1.2334e-02 -6.0000e+00 1.9188e-02 5.4205e-03 7.6865e-04 6.0501e-03 -6.0000e+00 1.1457e-02 -5.5556e-03 3.7841e-04 1.7233e-03 -6.0000e+00 4.9183e-03 2.9172e-03 -1.6162e-04 2.4315e-05 1.8290e-05 -6.0000e+00 3.2862e-04 -1.5817e-02 0.0000e+00 11 8 0 10 0 0 22.43 26.69 0.44 -0.01582 -0.01703 87 87 1 5 0 345.700 34.75 20.00 26.69 36.58 0.0 1017.55 -1814 58 -1371 -4227 -3756 -4836 -3495 -1812 -1522 -1331 -3751 -3137 -1498 -537 580 1151 1011 947 831 1122 997 512 1683 1140 311 736 86 -844 -1145 -211 1079 701 1190 -675 -3623 -3117 -2813 -1511 -440 -60 -329 -47 -72 -308 -116 158 -204 -350 -1036 -357 619 602 1020 1230 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-469 -147 -216 105 314 689 521 14 -618 -980 -1204 SS 20250621T141920.7Z 9303.596768 16 1 30.48 2 67.53 296.40 120.91 289.05 0.00 1 0.00 1 0 17 2.127e-02 7.732e-03 1.109e-02 2.605e-03 2.893725e-01 1.291901e-03 3.034770e-03 -6.000000e+00 1.196345e-02 226.88 -2.00 3.05 -2.00 317.89 0.00e+00 4.507774e-04 2.215152e-04 3.517596e-04 -6.000000e+00 5.361626e-04 285.77 -2.00 20.00 -2.00 317.11 0.00e+00 2.595 0.000 302.00 328.00 3 4.5508e+00 3.4456e-03 2.5211e-02 -6.0000e+00 2.9644e-02 -4.4646e-02 3.9063e-03 1.3011e-02 -6.0000e+00 3.2188e-02 1.2253e-02 2.4576e-03 6.3768e-03 -6.0000e+00 1.9220e-02 -9.8914e-03 1.2648e-03 1.7941e-03 -6.0000e+00 8.2511e-03 4.6035e-04 -1.7889e-04 7.2912e-05 1.8676e-05 -6.0000e+00 5.5125e-04 -1.6041e-02 0.0000e+00 11 8 0 10 0 0 99.41 26.71 0.36 -0.01604 -0.01739 21 21 1 5 0 1451.120 34.75 19.99 26.71 36.64 0.0 1015.82 -7378 -2554 -1900 -5585 -8441 -9955 -7125 -3538 -5098 2123 -8809 504 -343 -2394 -776 980 -2316 954 2870 1372 1949 791 1329 667 313 -345 2322 -2180 -2359 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-787 -1503 -828 -671 299 1169 1663 1095 1460 408 -322 -597 -356 -101 83 711 -2 569 446 850 921 -195 -507 340 149 304 239 -582 -669 -19 -192 91 342 869 466 72 -500 -854 -1173 SS 20250621T142901.6Z 9303.603491 22 1 17.09 2 69.70 295.90 123.08 289.48 0.00 1 0.00 1 0 17 2.883e-02 7.696e-03 2.225e-02 4.048e-03 3.204665e-01 2.016410e-03 3.335810e-03 -6.000000e+00 1.621267e-02 226.88 -2.00 3.05 -2.00 318.17 0.00e+00 2.312994e-04 3.740496e-04 3.833899e-04 -6.000000e+00 7.266126e-04 285.77 -2.00 20.00 -2.00 317.39 0.00e+00 2.853 0.000 302.00 328.00 3 4.5175e+00 5.4245e-03 2.7784e-02 -6.0000e+00 4.0173e-02 -5.0925e-02 6.1713e-03 1.4450e-02 -6.0000e+00 4.3621e-02 1.9070e-02 4.0129e-03 7.0651e-03 -6.0000e+00 2.6047e-02 -1.4652e-02 2.0949e-03 1.9785e-03 -6.0000e+00 1.1181e-02 3.6965e-04 5.3767e-05 1.1354e-04 2.0651e-05 -6.0000e+00 7.4707e-04 -1.5887e-02 0.0000e+00 12 9 1 12 1 1 -88.22 26.67 0.68 -0.01589 -0.01548 6 12 1 5 0 2440.310 34.75 19.97 26.67 33.01 0.0 995.53 -1386 -10703 -17457 1033 -10742 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