File name: Pandora138s1_Rome-SAP_20191124_L2Fit_fwvt1c1d20190827p1-8.txt
File generation date: 20250203T161624.4Z
Data description: Level 2 spectral fitting results file
Data file version: fwvt1c1p1-8
Local principal investigator: Stefano Casadio
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 138
Spectrometer number: 1
Processing software version used: BlickP v1.8.70
Instrument operation file used: Pandora138_OF_v3d20190508.txt
Instrument calibration file used: Pandora138s1_CF_v1d20190827.txt
Level 1 file used: Pandora138s1_Rome-SAP_20191124_L1_smca1c1d20190827p1-8.txt
Full location name: Department of Physics, University of Rome La Sapienza
Short location name: Rome-SAP
Country of location: Italy
Location latitude [deg]: 41.9017
Location longitude [deg]: 12.5158
Location altitude [m]: 75
Local noon date: 20191124
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: None
First and last pixel inside fitting window: 1629 1778
Nominal wavelengths inside fitting window [nm]: 492.0149 492.1361 492.2572 492.3784 492.4995 492.6206 492.7417 492.8628 492.9838 493.1049 493.2259 493.3469 493.4679 493.5889 493.7099 493.8308 493.9517 494.0726 494.1935 494.3144 494.4353 494.5561 494.6769 494.7977 494.9185 495.0393 495.1601 495.2808 495.4016 495.5223 495.6430 495.7636 495.8843 496.0049 496.1256 496.2462 496.3668 496.4874 496.6079 496.7285 496.8490 496.9695 497.0900 497.2105 497.3309 497.4514 497.5718 497.6922 497.8126 497.9330 498.0534 498.1737 498.2940 498.4143 498.5346 498.6549 498.7752 498.8954 499.0156 499.1359 499.2560 499.3762 499.4964 499.6165 499.7367 499.8568 499.9769 500.0969 500.2170 500.3370 500.4571 500.5771 500.6971 500.8170 500.9370 501.0569 501.1769 501.2968 501.4167 501.5365 501.6564 501.7762 501.8961 502.0159 502.1357 502.2554 502.3752 502.4949 502.6147 502.7344 502.8541 502.9737 503.0934 503.2130 503.3326 503.4522 503.5718 503.6914 503.8110 503.9305 504.0500 504.1695 504.2890 504.4085 504.5279 504.6474 504.7668 504.8862 505.0056 505.1249 505.2443 505.3636 505.4829 505.6022 505.7215 505.8408 505.9600 506.0793 506.1985 506.3177 506.4369 506.5560 506.6752 506.7943 506.9134 507.0325 507.1516 507.2706 507.3897 507.5087 507.6277 507.7467 507.8657 507.9847 508.1036 508.2225 508.3414 508.4603 508.5792 508.6981 508.8169 508.9357 509.0545 509.1733 509.2921 509.4108 509.5296 509.6483 509.7670 509.8857
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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: Water vapor slant column amount [moles per square meter], -9e99=fitting not successful
Column 23: Independent uncertainty of water vapor 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 water vapor 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 water vapor 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 water vapor 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: Water vapor effective temperature [K]
Column 28: Independent uncertainty of water vapor 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 water vapor 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 water vapor 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 water vapor fitting wavelength [nm], -9=fitting not successful
Column 32: Diffuse correction applied before fitting at effective fitting wavelength for water vapor [%], 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: Ozone slant column amount [moles per square meter], -9e99=fitting not successful
Column 45: 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 46: 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 47: 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 48: 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 49: Ozone effective temperature [K]
Column 50: 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 51: 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 52: 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 53: Effective ozone fitting wavelength [nm], -9=fitting not successful
Column 54: 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 55: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting
Column 56: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting
Column 57: Lower limit used for wavelength scaling [nm]
Column 58: Upper limit used for wavelength scaling [nm]
Column 59: Order of smoothing polynomial
Column 60: Smoothing polynomial coefficient, order 0
Column 61: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 62: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 63: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 64: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 65: Smoothing polynomial coefficient, order 1
Column 66: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 67: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 68: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 69: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 70: Mean value of measured data inside fitting window [same units as measurements]
Column 71: Wavelength change polynomial coefficient, order 0
Column 72: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 73: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 74: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 75: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 76: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination
Column 77: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination
Column 78: 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 79: 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 80: 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 81: 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 82: 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 83: 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 84: Atmospheric variability [%], 999=no atmospheric variability was determined
Column 85: Wavelength effective temperature [°C], 999=no effective temperature given
Column 86: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher)
Column 87: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination
Column 88: Retrieved total wavelength shift [nm], -9=no wavelength change fitting
Column 89: Number of bright count cycles
Column 90: Number of dark count cycles
Column 91: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions
Column 92: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions
Column 93: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal
Column 94: Integration time [ms]
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: Temperature at electronics board 1 [°C], 999=no temperature signal
Column 99: Temperature at electronics board 2 [°C], 999=no temperature signal
Column 100: Humidity in head sensor [%], -9=no humidity signal
Column 101: Pressure in head sensor [hPa], -9=no pressure signal
Columns 102-251: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting
Columns 252-401: 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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