File name: Pandora142s1_MexicoCity-UNAM_20190823_L2Fit_ffuh5c15d20190823p1-8.txt
File generation date: 20251127T092929.0Z
Data description: Level 2 spectral fitting results file
Data file version: ffuh5c15p1-8
Local principal investigator: Michel de Grutter
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 142
Spectrometer number: 1
Processing software version used: BlickP v1.8.75
Instrument operation file used: Pandora142_of_v1d20171226.txt
Instrument calibration file used: Pandora142s1_CF_v15d20190823.txt
Level 1 file used: Pandora142s1_MexicoCity-UNAM_20190823_L1_smca1c15d20190823p1-8.txt
Full location name: Centro de Ciencias de la Atmosfera, UNAM
Short location name: MexicoCity-UNAM
Country of location: Mexico
Location latitude [deg]: 19.3262
Location longitude [deg]: -99.1761
Location altitude [m]: 2280
Local noon date: 20190823
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: None
First and last pixel inside fitting window: 404 624
Nominal wavelengths inside fitting window [nm]: 328.5321 328.6713 328.8105 328.9496 329.0888 329.2280 329.3671 329.5062 329.6453 329.7844 329.9235 330.0626 330.2017 330.3407 330.4798 330.6188 330.7578 330.8969 331.0359 331.1748 331.3138 331.4528 331.5917 331.7307 331.8696 332.0085 332.1474 332.2863 332.4252 332.5641 332.7029 332.8418 332.9806 333.1194 333.2582 333.3970 333.5358 333.6746 333.8133 333.9521 334.0908 334.2296 334.3683 334.5070 334.6457 334.7843 334.9230 335.0617 335.2003 335.3389 335.4776 335.6162 335.7548 335.8934 336.0319 336.1705 336.3090 336.4476 336.5861 336.7246 336.8631 337.0016 337.1401 337.2785 337.4170 337.5554 337.6938 337.8323 337.9707 338.1091 338.2474 338.3858 338.5242 338.6625 338.8008 338.9391 339.0775 339.2157 339.3540 339.4923 339.6306 339.7688 339.9070 340.0453 340.1835 340.3217 340.4598 340.5980 340.7362 340.8743 341.0125 341.1506 341.2887 341.4268 341.5649 341.7030 341.8410 341.9791 342.1171 342.2551 342.3931 342.5311 342.6691 342.8071 342.9451 343.0830 343.2210 343.3589 343.4968 343.6347 343.7726 343.9105 344.0483 344.1862 344.3240 344.4619 344.5997 344.7375 344.8753 345.0130 345.1508 345.2886 345.4263 345.5640 345.7017 345.8395 345.9771 346.1148 346.2525 346.3901 346.5278 346.6654 346.8030 346.9406 347.0782 347.2158 347.3534 347.4909 347.6285 347.7660 347.9035 348.0410 348.1785 348.3160 348.4535 348.5909 348.7284 348.8658 349.0032 349.1406 349.2780 349.4154 349.5528 349.6901 349.8275 349.9648 350.1021 350.2394 350.3767 350.5140 350.6513 350.7885 350.9258 351.0630 351.2002 351.3374 351.4746 351.6118 351.7490 351.8861 352.0233 352.1604 352.2975 352.4347 352.5718 352.7088 352.8459 352.9830 353.1200 353.2571 353.3941 353.5311 353.6681 353.8051 353.9420 354.0790 354.2160 354.3529 354.4898 354.6267 354.7636 354.9005 355.0374 355.1743 355.3111 355.4480 355.5848 355.7216 355.8584 355.9952 356.1320 356.2687 356.4055 356.5422 356.6790 356.8157 356.9524 357.0891 357.2258 357.3624 357.4991 357.6357 357.7724 357.9090 358.0456 358.1822 358.3188 358.4553 358.5919 358.7284 358.8650
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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: Formaldehyde slant column amount [moles per square meter], -9e99=fitting not successful
Column 23: Independent uncertainty of formaldehyde 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 formaldehyde 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 formaldehyde 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 formaldehyde 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: Formaldehyde effective temperature [K]
Column 28: Independent uncertainty of formaldehyde 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 formaldehyde 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 formaldehyde 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 formaldehyde fitting wavelength [nm], -9=fitting not successful
Column 32: Diffuse correction applied before fitting at effective fitting wavelength for formaldehyde [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction
Column 33: Nitrogen dioxide slant column amount [moles per square meter], -9e99=fitting not successful
Column 34: Independent uncertainty of nitrogen 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 nitrogen 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 nitrogen 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 nitrogen 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: Nitrogen dioxide effective temperature [K]
Column 39: Independent uncertainty of nitrogen 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 nitrogen 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 nitrogen 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 nitrogen dioxide fitting wavelength [nm], -9=fitting not successful
Column 43: Diffuse correction applied before fitting at effective fitting wavelength for nitrogen dioxide [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction
Column 44: Oxygen dimer slant column amount [moles squared per meter to the 5th], -9e99=fitting not successful
Column 45: Independent uncertainty of oxygen dimer slant column amount [moles squared per meter to the 5th], -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 46: Structured uncertainty of oxygen dimer slant column amount [moles squared per meter to the 5th], -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful
Column 47: Common uncertainty of oxygen dimer slant column amount [moles squared per meter to the 5th], -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 48: rms-based uncertainty of oxygen dimer slant column amount [moles squared per meter to the 5th], -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 49: Oxygen dimer effective temperature [K]
Column 50: Independent uncertainty of oxygen dimer 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 51: Structured uncertainty of oxygen dimer 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 52: Common uncertainty of oxygen dimer 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 53: Effective oxygen dimer fitting wavelength [nm], -9=fitting not successful
Column 54: Diffuse correction applied before fitting at effective fitting wavelength for oxygen dimer [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction
Column 55: Ozone slant column amount [moles per square meter], -9e99=fitting not successful
Column 56: 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 57: 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 58: 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 59: 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 60: Ozone effective temperature [K]
Column 61: 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 62: 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 63: 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 64: Effective ozone fitting wavelength [nm], -9=fitting not successful
Column 65: 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 66: Fitted Ring spectrum, -9e99=no fitting done or fitting not successful
Column 67: Independent uncertainty of fitted Ring spectrum, -9=fitting not successful
Column 68: Structured uncertainty of fitted Ring spectrum, -9=fitting not successful
Column 69: Common uncertainty of fitted Ring spectrum, -9=fitting not successful
Column 70: rms-based uncertainty of fitted Ring spectrum, -9=fitting not successful
Column 71: Effective Ring fitting wavelength [nm], -9=fitting not done or not successful
Column 72: Diffuse correction applied before fitting at effective Ring fitting wavelength [%], 0=no diffuse correction applied, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction
Column 73: Lower limit used for wavelength scaling [nm]
Column 74: Upper limit used for wavelength scaling [nm]
Column 75: Order of smoothing polynomial
Column 76: Smoothing polynomial coefficient, order 0
Column 77: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 78: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 79: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 80: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 81: Smoothing polynomial coefficient, order 1
Column 82: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 83: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 84: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 85: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 86: Smoothing polynomial coefficient, order 2
Column 87: Independent uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful
Column 88: Structured uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful
Column 89: Common uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful
Column 90: rms-based uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful
Column 91: Smoothing polynomial coefficient, order 3
Column 92: Independent uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful
Column 93: Structured uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful
Column 94: Common uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful
Column 95: rms-based uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful
Column 96: Smoothing polynomial coefficient, order 4
Column 97: Independent uncertainty of smoothing polynomial coefficient, order 4, -9=fitting not successful
Column 98: Structured uncertainty of smoothing polynomial coefficient, order 4, -9=fitting not successful
Column 99: Common uncertainty of smoothing polynomial coefficient, order 4, -9=fitting not successful
Column 100: rms-based uncertainty of smoothing polynomial coefficient, order 4, -9=fitting not successful
Column 101: Mean value of measured data inside fitting window [same units as measurements]
Column 102: Offset polynomial coefficient, order 0
Column 103: Independent uncertainty of offset polynomial coefficient, order 0, -9=fitting not successful
Column 104: Structured uncertainty of offset polynomial coefficient, order 0, -9=fitting not successful
Column 105: Common uncertainty of offset polynomial coefficient, order 0, -9=fitting not successful
Column 106: rms-based uncertainty of offset polynomial coefficient, order 0, -9=fitting not successful
Column 107: Offset polynomial coefficient, order 1
Column 108: Independent uncertainty of offset polynomial coefficient, order 1, -9=fitting not successful
Column 109: Structured uncertainty of offset polynomial coefficient, order 1, -9=fitting not successful
Column 110: Common uncertainty of offset polynomial coefficient, order 1, -9=fitting not successful
Column 111: rms-based uncertainty of offset polynomial coefficient, order 1, -9=fitting not successful
Column 112: Wavelength change polynomial coefficient, order 0
Column 113: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 114: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 115: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 116: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 117: Wavelength change polynomial coefficient, order 1
Column 118: Independent uncertainty of wavelength change polynomial coefficient, order 1, -9=fitting not successful
Column 119: Structured uncertainty of wavelength change polynomial coefficient, order 1, -9=fitting not successful
Column 120: Common uncertainty of wavelength change polynomial coefficient, order 1, -9=fitting not successful
Column 121: rms-based uncertainty of wavelength change polynomial coefficient, order 1, -9=fitting not successful
Column 122: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination
Column 123: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination
Column 124: 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 125: 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 126: 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 127: 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 128: 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 129: 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 130: Atmospheric variability [%], 999=no atmospheric variability was determined
Column 131: Wavelength effective temperature [°C], 999=no effective temperature given
Column 132: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher)
Column 133: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination
Column 134: Retrieved total wavelength shift [nm], -9=no wavelength change fitting
Column 135: Number of bright count cycles
Column 136: Number of dark count cycles
Column 137: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions
Column 138: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions
Column 139: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal
Column 140: Integration time [ms]
Column 141: Temperature at electronics board [°C], 999=no temperature signal
Column 142: Spectrometer control temperature [°C], 999=no temperature signal
Column 143: Auxiliary spectrometer temperature [°C], 999=no temperature signal
Columns 144-364: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting
Columns 365-585: 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
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