File name: Pandora40s1_WallopsIslandVA_20210803_L2Fit_fout2c7d20210513p1-8.txt File generation date: 20260321T155502.7Z Data description: Level 2 spectral fitting results file Data file version: fout2c7p1-8 Local principal investigator: Tom Hanisco Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 40 Spectrometer number: 1 Processing software version used: BlickP v1.8.88 Instrument operation file used: Pandora40_OF_v2d20210309.txt Instrument calibration file used: Pandora40s1_CF_v7d20210513.txt Level 1 file used: Pandora40s1_WallopsIslandVA_20210803_L1_smca1c7d20210513p1-8.txt.bz2 Full location name: Wallops Island X-75 Station, Wallops Flight Facility Geophysical Observatory Short location name: WallopsIslandVA Country of location: USA Location latitude [deg]: 37.8439 Location longitude [deg]: -75.4775 Location altitude [m]: 11 Local noon date: 20210803 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: Modification of session 6 suggested by BP "AnaLab+Fld 1.8 VP 20210513" First and last pixel inside fitting window: 231 372 Nominal wavelengths inside fitting window [nm]: 305.1141 305.2550 305.3959 305.5368 305.6777 305.8186 305.9595 306.1003 306.2412 306.3820 306.5228 306.6636 306.8044 306.9452 307.0860 307.2267 307.3675 307.5082 307.6489 307.7897 307.9304 308.0711 308.2117 308.3524 308.4931 308.6337 308.7743 308.9150 309.0556 309.1962 309.3368 309.4773 309.6179 309.7584 309.8990 310.0395 310.1800 310.3205 310.4610 310.6015 310.7420 310.8824 311.0229 311.1633 311.3037 311.4442 311.5846 311.7249 311.8653 312.0057 312.1460 312.2864 312.4267 312.5670 312.7073 312.8476 312.9879 313.1282 313.2684 313.4087 313.5489 313.6892 313.8294 313.9696 314.1098 314.2499 314.3901 314.5303 314.6704 314.8105 314.9506 315.0908 315.2308 315.3709 315.5110 315.6511 315.7911 315.9312 316.0712 316.2112 316.3512 316.4912 316.6312 316.7711 316.9111 317.0510 317.1910 317.3309 317.4708 317.6107 317.7506 317.8904 318.0303 318.1701 318.3100 318.4498 318.5896 318.7294 318.8692 319.0090 319.1488 319.2885 319.4283 319.5680 319.7077 319.8474 319.9871 320.1268 320.2665 320.4061 320.5458 320.6854 320.8250 320.9646 321.1042 321.2438 321.3834 321.5230 321.6625 321.8021 321.9416 322.0811 322.2206 322.3601 322.4996 322.6391 322.7785 322.9180 323.0574 323.1968 323.3363 323.4757 323.6150 323.7544 323.8938 324.0331 324.1725 324.3118 324.4511 324.5904 324.7297 324.8690 --------------------------------------------------------------------------------------- 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 20210803T141202.5Z 7885.591695 326 1 47.78 2 43.54 105.65 20.97 228.86 0.00 1 0.00 1 0 25 1.466e-02 1.082e-02 5.169e-03 2.427e-03 1.901333e-01 1.289114e-03 2.279087e-03 -6.000000e+00 8.847020e-03 232.01 -2.00 3.45 -2.00 316.45 0.00e+00 8.685863e-04 1.518785e-04 3.261292e-04 -6.000000e+00 3.973148e-04 291.61 -2.00 20.00 -2.00 315.59 0.00e+00 1.378 0.000 302.00 328.00 3 5.6309e+00 3.3786e-03 1.6910e-02 -6.0000e+00 2.2129e-02 2.4984e-02 3.7586e-03 9.6603e-03 -6.0000e+00 2.3823e-02 -3.3038e-03 2.1709e-03 4.6595e-03 -6.0000e+00 1.4220e-02 -8.8729e-03 1.0127e-03 1.2763e-03 -6.0000e+00 6.0818e-03 3.8949e-04 4.0660e-04 7.5040e-05 1.6968e-05 -6.0000e+00 4.3236e-04 9.4598e-03 4.8733e-05 12 8 8 10 0 0 99.89 17.43 0.40 0.00946 0.01252 14 3 1 5 0 3412.280 20.25 15.01 17.43 32.26 19.2 1035.10 1673 769 -1444 -1884 -1856 -2378 136 -428 -2566 -3860 -2774 -2068 -329 1105 1061 -385 1108 872 1538 1160 811 1848 1861 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-118 -1072 -1385 -1522 -681 -152 1201 1047 433 -423 -1752 -2293 -951 -1508 -1784 -359 -367 516 1772 2482 2325 2102 914 -149 -622 -748 -1017 135 596 663 1265 1146 707 758 -457 -1330 -1215 -962 -367 -707 -1173 -549 -948 -139 733 730 1085 960 706 331 -1007 -1560 SS 20210803T154445.3Z 7885.656080 391 1 2.97 2 27.48 132.60 37.03 257.72 0.00 1 0.00 1 0 17 1.336e-02 1.119e-02 2.556e-03 1.941e-03 1.519255e-01 1.053310e-03 1.827273e-03 -6.000000e+00 8.063485e-03 232.01 -2.00 3.45 -2.00 314.40 0.00e+00 8.087578e-04 8.212504e-05 9.799547e-05 -6.000000e+00 3.621234e-04 291.61 -2.00 20.00 -2.00 313.75 0.00e+00 1.127 0.000 302.00 328.00 3 3.3815e+00 2.7031e-03 1.3723e-02 -6.0000e+00 2.0169e-02 1.0272e-02 2.9716e-03 7.7737e-03 -6.0000e+00 2.1712e-02 -1.5016e-03 1.7073e-03 3.7148e-03 -6.0000e+00 1.2960e-02 -1.0210e-02 7.4508e-04 1.0258e-03 -6.0000e+00 5.5433e-03 5.1440e-03 9.2604e-05 5.8475e-05 1.6622e-05 -6.0000e+00 3.9404e-04 9.3955e-03 6.1705e-05 12 9 9 12 1 1 91.83 17.56 0.40 0.00940 0.01009 6 28 1 5 0 398.640 20.25 15.00 17.56 32.65 19.3 1028.77 1080 944 -341 -2284 -2866 -2123 213 470 -587 -1692 -2276 -1335 -557 705 853 788 1548 1460 1405 1520 938 1914 1502 1168 1419 366 -285 -1113 -214 -712 -330 84 -1102 -3416 -4921 -4304 -3017 -1780 -246 -323 29 294 291 293 359 165 -41 -546 -589 735 757 1125 1110 1198 1120 872 581 125 20 242 1196 1920 2628 1349 187 -437 -1390 3 567 995 1363 1509 953 513 -685 -1912 -3133 -3053 -2563 -2451 -1879 -2447 -1878 -1232 -310 334 640 1333 965 1081 420 -1090 -1134 -1298 -931 -206 919 832 295 -51 -1248 -1673 -944 -876 -1105 -407 -457 519 1181 1709 1727 1390 870 -31 -407 -572 -48 281 484 492 719 656 678 448 -24 -785 -266 -677 -534 -368 -1018 -669 -507 -152 408 391 835 299 263 59 -578 -897 431 392 -139 -927 -1059 -765 80 196 -246 -722 -958 -577 -262 341 451 437 867 838 775 857 532 1070 862 699 877 231 -174 -637 -122 -402 -193 48 -666 -2059 -2854 -2532 -1955 -1259 -189 -263 25 248 249 250 305 138 -35 -449 -471 585 631 982 961 1069 1017 805 539 116 18 224 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