File name: Pandora72s1_SaltLakeCityUT-Hawthorne_20250106_L2Fit_fout2c40d20221201p1-8.txt File generation date: 20250107T073715.2Z Data description: Level 2 spectral fitting results file Data file version: fout2c40p1-8 Local principal investigator: Lukas Valin Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 72 Spectrometer number: 1 Processing software version used: BlickP v1.8.60 Instrument operation file used: Pandora72_OF_v3d20210409.txt Instrument calibration file used: Pandora72s1_CF_v40d20221201.txt Level 1 file used: Pandora72s1_SaltLakeCityUT-Hawthorne_20250106_L1_smca1c40d20221201p1-8.txt Full location name: SLC - Hawthorne, UT - UTDEQ (AQS Site ID 49-035-3006) Short location name: SaltLakeCityUT-Hawthorne Country of location: United States Location latitude [deg]: 40.7344 Location longitude [deg]: -111.8722 Location altitude [m]: 1306 Local noon date: 20250106 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: initial FieldCal based on Session4 First and last pixel inside fitting window: 260 402 Nominal wavelengths inside fitting window [nm]: 305.0556 305.1964 305.3373 305.4781 305.6189 305.7597 305.9005 306.0413 306.1821 306.3229 306.4636 306.6044 306.7451 306.8858 307.0265 307.1672 307.3079 307.4486 307.5893 307.7299 307.8706 308.0112 308.1519 308.2925 308.4331 308.5737 308.7142 308.8548 308.9954 309.1359 309.2765 309.4170 309.5575 309.6980 309.8385 309.9790 310.1195 310.2599 310.4004 310.5408 310.6812 310.8216 310.9621 311.1024 311.2428 311.3832 311.5236 311.6639 311.8043 311.9446 312.0849 312.2252 312.3655 312.5058 312.6461 312.7863 312.9266 313.0668 313.2070 313.3472 313.4875 313.6276 313.7678 313.9080 314.0482 314.1883 314.3285 314.4686 314.6087 314.7488 314.8889 315.0290 315.1690 315.3091 315.4492 315.5892 315.7292 315.8692 316.0092 316.1492 316.2892 316.4292 316.5691 316.7091 316.8490 316.9890 317.1289 317.2688 317.4087 317.5486 317.6884 317.8283 317.9681 318.1080 318.2478 318.3876 318.5274 318.6672 318.8070 318.9467 319.0865 319.2262 319.3660 319.5057 319.6454 319.7851 319.9248 320.0645 320.2041 320.3438 320.4834 320.6231 320.7627 320.9023 321.0419 321.1815 321.3211 321.4606 321.6002 321.7397 321.8793 322.0188 322.1583 322.2978 322.4373 322.5767 322.7162 322.8556 322.9951 323.1345 323.2739 323.4133 323.5527 323.6921 323.8315 323.9708 324.1102 324.2495 324.3888 324.5282 324.6675 324.8067 324.9460 --------------------------------------------------------------------------------------- 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 20250106T214455.4Z 9137.906197 287 1 50.23 2 70.10 212.21 58.29 110.39 0.00 1 0.00 1 0 25 2.637e-02 5.236e-03 3.028e-03 4.684e-04 4.198805e-01 2.471523e-04 4.921624e-03 -6.000000e+00 1.604496e-02 222.96 -2.00 3.47 -2.00 318.27 0.00e+00 8.593704e-04 4.653403e-05 1.513275e-04 -6.000000e+00 6.875396e-04 268.17 -2.00 20.00 -2.00 317.81 0.00e+00 2.908 0.000 302.00 328.00 3 1.9353e+00 6.5859e-04 3.2338e-02 -6.0000e+00 3.9542e-02 1.6141e-02 7.4450e-04 2.0817e-02 -6.0000e+00 4.3091e-02 -1.0523e-02 5.0292e-04 1.0510e-02 -6.0000e+00 2.5566e-02 -1.7656e-03 2.5995e-04 3.1735e-03 -6.0000e+00 1.0533e-02 3.7640e-03 -3.9941e-04 1.5534e-05 4.3271e-05 -6.0000e+00 9.0131e-04 3.2096e-03 0.0000e+00 10 0 0 10 0 0 99.72 23.33 0.23 0.00321 0.00021 363 71 1 5 0 138.350 26.62 20.00 23.33 14.17 22.5 856.55 -7983 -10805 -7539 -9835 -9422 -10086 -8052 -9037 -8161 -5219 -7273 -6555 -3208 -2212 -541 -1454 -1065 -685 -5 -170 21 -41 -537 293 -634 -163 -1805 -1684 -1488 -767 859 523 816 -298 -2083 -2253 -1541 -1166 -497 -397 -902 -841 -534 -666 -150 -183 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-128 -185 -62 -194 -228 -253 -380 -463 -413 -677 SS 20250106T215714.4Z 9137.914750 297 1 10.13 2 71.39 214.90 56.13 112.84 0.00 1 0.00 1 0 25 3.676e-02 5.592e-03 7.077e-03 9.549e-04 4.459484e-01 5.035275e-04 5.206984e-03 -6.000000e+00 2.236935e-02 222.96 -2.00 3.47 -2.00 318.42 0.00e+00 1.046931e-03 9.959609e-05 1.663310e-04 -6.000000e+00 9.585668e-04 268.17 -2.00 20.00 -2.00 317.97 0.00e+00 3.096 0.000 302.00 328.00 3 1.5866e+00 1.3454e-03 3.4389e-02 -6.0000e+00 5.5128e-02 1.8846e-02 1.5224e-03 2.2113e-02 -6.0000e+00 6.0076e-02 -1.8673e-02 1.0514e-03 1.1161e-02 -6.0000e+00 3.5643e-02 2.0039e-03 5.4911e-04 3.4190e-03 -6.0000e+00 1.4685e-02 4.4238e-03 -3.7049e-04 3.1409e-05 4.6688e-05 -6.0000e+00 1.2566e-03 3.4314e-03 0.0000e+00 12 1 1 12 1 1 99.20 23.33 0.28 0.00343 0.00065 72 71 1 5 0 138.760 26.73 20.00 23.33 14.90 22.5 859.97 -12629 -12502 -8083 -11734 -15724 -15429 -14120 -8717 -14292 -5687 -11709 -6715 -4973 -4684 -550 -1435 -423 -945 278 228 -1184 -575 -1459 602 -1389 -483 -2155 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-663 -312 8 310 62 14 -100 182 350 559 881 158 72 69 -32 422 493 822 1049 1159 823 1159 638 249 62 -29 4 -201 -153 -67 -249 -350 -441 -438 -645 -665 SS 20250106T220144.8Z 9137.917879 300 1 50.17 2 71.88 215.87 55.35 113.76 0.00 1 0.00 1 0 25 4.481e-02 5.313e-03 2.888e-03 3.459e-04 4.573178e-01 1.823661e-04 5.319467e-03 -6.000000e+00 2.726834e-02 222.96 -2.00 3.47 -2.00 318.63 0.00e+00 1.109271e-03 3.844361e-05 1.867416e-04 -6.000000e+00 1.168432e-03 268.17 -2.00 20.00 -2.00 318.19 0.00e+00 3.175 0.001 302.00 328.00 3 1.0564e+00 4.9025e-04 3.5274e-02 -6.0000e+00 6.7201e-02 1.9489e-02 5.5668e-04 2.2683e-02 -6.0000e+00 7.3231e-02 -2.0603e-02 3.9530e-04 1.1451e-02 -6.0000e+00 4.3448e-02 1.9060e-03 2.0736e-04 3.5279e-03 -6.0000e+00 1.7902e-02 6.9504e-03 -3.6929e-04 1.1363e-05 4.7931e-05 -6.0000e+00 1.5317e-03 2.9720e-03 0.0000e+00 10 0 0 10 0 0 82.38 23.33 0.25 0.00297 0.00020 755 148 1 5 0 66.440 26.62 19.99 23.33 15.23 22.7 863.53 -16035 -15292 -14546 -15233 -16842 -16303 -15882 -15236 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