File name: Pandora280s1_Eureka-0PAL_20240908_L2Fit_fout2c2d20240201p1-8.txt File generation date: 20240909T054656.9Z Data description: Level 2 spectral fitting results file Data file version: fout2c2p1-8 Local principal investigator: Kimberly Strong Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 280 Spectrometer number: 1 Processing software version used: BlickP v1.8.59 Instrument operation file used: Pandora280_OF_v3d20230919.txt Instrument calibration file used: Pandora280s1_CF_v2d20240201.txt Level 1 file used: Pandora280s1_Eureka-0PAL_20240908_L1_smca1c2d20240201p1-8.txt Full location name: Polar Environment Atmospheric Research Laboratory (PEARL) 0PAL facility Short location name: Eureka-0PAL Country of location: Canada Location latitude [deg]: 79.9903 Location longitude [deg]: -85.9389 Location altitude [m]: 14 Local noon date: 20240908 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 session 1 First and last pixel inside fitting window: 200 342 Nominal wavelengths inside fitting window [nm]: 305.0551 305.1959 305.3368 305.4776 305.6183 305.7591 305.8999 306.0406 306.1814 306.3221 306.4629 306.6036 306.7443 306.8850 307.0256 307.1663 307.3070 307.4476 307.5882 307.7288 307.8695 308.0101 308.1506 308.2912 308.4318 308.5723 308.7129 308.8534 308.9939 309.1344 309.2749 309.4154 309.5559 309.6963 309.8368 309.9772 310.1177 310.2581 310.3985 310.5389 310.6793 310.8196 310.9600 311.1003 311.2407 311.3810 311.5213 311.6616 311.8019 311.9422 312.0824 312.2227 312.3629 312.5032 312.6434 312.7836 312.9238 313.0640 313.2042 313.3443 313.4845 313.6246 313.7647 313.9049 314.0450 314.1851 314.3251 314.4652 314.6053 314.7453 314.8854 315.0254 315.1654 315.3054 315.4454 315.5854 315.7253 315.8653 316.0052 316.1452 316.2851 316.4250 316.5649 316.7048 316.8447 316.9845 317.1244 317.2642 317.4040 317.5439 317.6837 317.8235 317.9632 318.1030 318.2428 318.3825 318.5223 318.6620 318.8017 318.9414 319.0811 319.2208 319.3604 319.5001 319.6397 319.7793 319.9190 320.0586 320.1982 320.3378 320.4773 320.6169 320.7564 320.8960 321.0355 321.1750 321.3145 321.4540 321.5935 321.7329 321.8724 322.0118 322.1513 322.2907 322.4301 322.5695 322.7089 322.8483 322.9876 323.1270 323.2663 323.4056 323.5449 323.6843 323.8235 323.9628 324.1021 324.2413 324.3806 324.5198 324.6590 324.7982 324.9374 --------------------------------------------------------------------------------------- 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 20240908T175136.5Z 9017.744173 483 1 51.69 2 74.70 182.69 105.42 128.18 0.00 1 0.00 1 0 17 2.533e-01 2.514e-02 5.220e-02 4.395e-03 4.510480e-01 2.236980e-03 8.417624e-03 -6.000000e+00 1.448699e-01 228.12 -2.00 5.56 -2.00 319.77 0.00e+00 3.335259e-03 6.066519e-04 2.296057e-03 -6.000000e+00 6.311931e-03 267.48 -2.00 20.00 -2.00 319.33 0.00e+00 3.719 0.002 302.00 328.00 3 4.6780e+00 6.3025e-03 5.3312e-02 -6.0000e+00 3.6280e-01 7.1894e-02 7.3338e-03 3.7738e-02 -6.0000e+00 3.9511e-01 -1.5638e-01 5.9426e-03 2.0008e-02 -6.0000e+00 2.3214e-01 7.6395e-02 3.1203e-03 6.8332e-03 -6.0000e+00 9.7310e-02 7.3473e-05 1.0337e-04 1.2616e-04 8.3724e-05 -6.0000e+00 6.8985e-03 -4.0891e-03 -1.7959e-04 12 9 8 11 8 0 34.45 26.06 0.12 -0.00409 -0.00331 13 2 1 5 0 3975.890 33.75 20.01 26.06 8.82 0.2 910.23 -27079 -38910 11132 -122704 -123151 17627 -45300 900000 -57806 -8000 900000 -95945 -50771 -8651 45379 -24975 44872 8272 107420 21687 10132 -38045 22823 -11508 4699 25006 -30991 19568 -34867 55968 14584 -24471 26560 70414 208 18928 15709 -10235 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