File name: Pandora142s1_MexicoCity-UNAM_20180701_L2Fit_ffuh5c13d20180420p1-8.txt
File generation date: 20251127T082418.0Z
Data description: Level 2 spectral fitting results file
Data file version: ffuh5c13p1-8
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_v13d20180420.txt
Level 1 file used: Pandora142s1_MexicoCity-UNAM_20180701_L1_smca1c13d20180420p1-8.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: 20180701
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: 404 625
Nominal wavelengths inside fitting window [nm]: 328.5116 328.6508 328.7900 328.9292 329.0684 329.2075 329.3467 329.4858 329.6249 329.7640 329.9031 330.0422 330.1813 330.3204 330.4594 330.5984 330.7375 330.8765 331.0155 331.1545 331.2934 331.4324 331.5714 331.7103 331.8492 331.9882 332.1271 332.2660 332.4049 332.5437 332.6826 332.8214 332.9603 333.0991 333.2379 333.3767 333.5155 333.6543 333.7930 333.9318 334.0705 334.2093 334.3480 334.4867 334.6254 334.7641 334.9027 335.0414 335.1800 335.3187 335.4573 335.5959 335.7345 335.8731 336.0117 336.1502 336.2888 336.4273 336.5658 336.7043 336.8428 336.9813 337.1198 337.2583 337.3967 337.5352 337.6736 337.8120 337.9504 338.0888 338.2272 338.3656 338.5039 338.6423 338.7806 338.9189 339.0572 339.1955 339.3338 339.4720 339.6103 339.7485 339.8868 340.0250 340.1632 340.3014 340.4396 340.5777 340.7159 340.8540 340.9922 341.1303 341.2684 341.4065 341.5446 341.6826 341.8207 341.9587 342.0968 342.2348 342.3728 342.5108 342.6488 342.7867 342.9247 343.0626 343.2006 343.3385 343.4764 343.6143 343.7522 343.8900 344.0279 344.1657 344.3035 344.4414 344.5792 344.7170 344.8547 344.9925 345.1302 345.2680 345.4057 345.5434 345.6811 345.8188 345.9565 346.0942 346.2318 346.3695 346.5071 346.6447 346.7823 346.9199 347.0575 347.1950 347.3326 347.4701 347.6076 347.7452 347.8827 348.0201 348.1576 348.2951 348.4325 348.5700 348.7074 348.8448 348.9822 349.1196 349.2570 349.3944 349.5317 349.6690 349.8064 349.9437 350.0810 350.2183 350.3556 350.4928 350.6301 350.7673 350.9046 351.0418 351.1790 351.3162 351.4534 351.5905 351.7277 351.8649 352.0020 352.1391 352.2762 352.4133 352.5504 352.6875 352.8246 352.9616 353.0987 353.2357 353.3727 353.5097 353.6467 353.7837 353.9207 354.0576 354.1946 354.3315 354.4684 354.6053 354.7422 354.8791 355.0160 355.1529 355.2897 355.4266 355.5634 355.7002 355.8370 355.9738 356.1106 356.2474 356.3841 356.5209 356.6576 356.7944 356.9311 357.0678 357.2045 357.3412 357.4778 357.6145 357.7511 357.8878 358.0244 358.1610 358.2976 358.4342 358.5708 358.7073 358.8439 358.9804
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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 144-365: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting
Columns 366-587: 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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